fix(i18n): add missing translation keys for signatures and email import

Fixes 25 failing tests across translations and eml-import test suites:

- Add 141 missing i18n keys to en/common.json for P2.1 (extended signatures
  feature) and P2.5 (email import feature). Keys cover:
  - signatures.* (signature editor, toolbar labels, per-identity settings)
  - settings.importer.* (mail import UI labels and messages)
  - settings.tabs.signatures, settings.{loading,refresh}
  - email_composer.{insert_signature,no_signature,select_signature}
  - identities.form.{signature_store_*,use_global_default}
  - calendar.{edit,delete,duplicate}, contacts.{edit,delete,send_email}
  - contacts.import.csv_* (CSV column mapping labels)
  - Other related keys for sharing, mailbox context menu, file operations

- Propagate new keys to all 23 other locale files:
  - ar, ca, cs, da, de, es, fa, fr, he, hu, it, ja, ko, lv, nl, pl, pt, ro,
    ru, sk, tr, uk, zh
  - 19 locales with real, idiomatic translations matching existing tone
  - 4 locales (da, es, fa, zh) with English placeholders pending native
    translation

- Fix eml-import test: update accept-string expectation to match actual
  EML_IMPORT_ACCEPT constant (now includes .tgz, .tar.gz, application/gzip
  support added in P2.5)

All 53 tests now pass:
  - 48 translation completeness tests
  - 5 eml-import tests

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.dockerignore

@@ -6,6 +6,15 @@ node_modules
 !.env.example
 !.env.dev.example
 scripts/
+# ...except the first-party plugin builder, which the image build runs
+# (see Dockerfile). Without this the whole scripts/ dir is absent from the
+# build context and the RUN step fails with "Cannot find module".
+!scripts/build-plugins.mjs
 TODO.md
 *.md
 !README.md
+# Sibling projects / test harness - not part of the webmail image
+examples/
+integration/
+e2e/
+**/node_modules

.env.dev.example

@@ -15,9 +15,15 @@
 DEV_MOCK_JMAP=true
 
 # Point the app at its own mock endpoint.
-# IMPORTANT: This must match the origin the app runs on (default: port 3000).
-# Using a different port (e.g. 3001) will cause CORS errors.
-JMAP_SERVER_URL=/api/dev-jmap
+# IMPORTANT: must be an ABSOLUTE URL matching the origin the app runs on
+# (default: port 3000) - NOT a relative path. A relative path here makes
+# /api/auth/stalwart-context 400 on every request (resolveTrustedJmapUrl
+# rejects it), which silently breaks the real server-side session-cookie
+# flow that S/MIME enrollment, offline sync, and the AI server/retrieval
+# routes all depend on. The client-side mock fetch works either way, which
+# is why this is easy to miss - it only bites features needing a real
+# server-side session identity.
+JMAP_SERVER_URL=http://localhost:3000/api/dev-jmap
 
 # =============================================================================
 # App
@@ -29,7 +35,7 @@ APP_NAME=Bulwark Webmail (Dev)
 # Session & Settings Sync (optional for dev)
 # =============================================================================
 
-SESSION_SECRET=dev-secret-not-for-production
+SESSION_SECRET=dev-secret-not-for-production-32chars
 SETTINGS_SYNC_ENABLED=true
 
 # =============================================================================
@@ -39,6 +45,16 @@ SETTINGS_SYNC_ENABLED=true
 LOG_FORMAT=text
 LOG_LEVEL=debug
 
+# =============================================================================
+# Plugin Development
+# =============================================================================
+
+# Load plugins from a directory on disk instead of installing them as ZIPs.
+# Each immediate subfolder is one plugin and needs a manifest.json. When the
+# manifest's entrypoint exists under src/, it's bundled on demand with esbuild,
+# so you can edit sources and just refresh the browser.
+# PLUGIN_DEV_DIR=../my-plugins
+
 # =============================================================================
 # Login Page Customization (optional)
 # =============================================================================

.env.example

@@ -19,6 +19,16 @@ JMAP_SERVER_URL=https://your-jmap-server.com
 # Access-Control-Allow-Origin header, or browser requests will be blocked.
 # ALLOW_CUSTOM_JMAP_ENDPOINT=true
 
+# Offer several JMAP servers on the login form. JSON array; each entry needs
+# id, label, and url. "domains" and a per-server "oauth" block are optional.
+# Prefer configuring this from the admin dashboard - the env form exists for
+# stateless deployments.
+# JMAP_SERVERS=[{"id":"eu","label":"Europe","url":"https://eu.example.com","domains":["example.com"]},{"id":"us","label":"US","url":"https://us.example.com","oauth":{"clientId":"webmail-us"}}]
+
+# Pick the server automatically from the domain of the address the user types,
+# matching against each entry's "domains" list. Default: false.
+# JMAP_SERVER_AUTO_PICK_BY_DOMAIN=true
+
 # =============================================================================
 # Stalwart Mail Server Integration
 # =============================================================================
@@ -59,6 +69,19 @@ JMAP_SERVER_URL=https://your-jmap-server.com
 # OAuth issuer's public hostname resolves to an internal IP from this server.
 # OAUTH_ALLOW_PRIVATE_ENDPOINTS=true
 
+# Replace the scopes requested at authorization. Space-separated. Leave unset
+# to use the defaults the client already asks for.
+# OAUTH_SCOPES=openid email profile offline_access
+
+# Append scopes instead of replacing them. Use this when your IdP needs one
+# extra scope and you don't want to restate the defaults.
+# OAUTH_EXTRA_SCOPES=groups
+
+# Send the user straight to the identity provider, skipping the login form.
+# Intended for embedded deployments where the parent app already authenticated
+# them. Default: false.
+# AUTO_SSO_ENABLED=true
+
 # =============================================================================
 # Session & Security
 # =============================================================================
@@ -132,6 +155,17 @@ JMAP_SERVER_URL=https://your-jmap-server.com
 # so the instance id and consent choice survive upgrades.
 # TELEMETRY_DATA_DIR=./data/telemetry
 
+# Legacy kill switch, honoured only when BULWARK_TELEMETRY is unset.
+# BULWARK_TELEMETRY_DISABLED=1
+
+# Let heartbeats reach a private/loopback address. Off by default as an SSRF
+# guard; only useful when running a collector locally during development.
+# BULWARK_TELEMETRY_ALLOW_PRIVATE=1
+
+# Report a fixed Stalwart version instead of probing the JMAP server's Server
+# header. Useful when a proxy strips that header.
+# STALWART_VERSION=0.16.0
+
 # =============================================================================
 # Server Listen Address
 # =============================================================================
@@ -197,6 +231,12 @@ JMAP_SERVER_URL=https://your-jmap-server.com
 # Should match your app's main background color. Default: #ffffff
 # PWA_BACKGROUND_COLOR=#ffffff
 
+# Screenshots shown in the browser's install prompt. Absolute URLs or paths
+# relative to public/. Both are optional; per-domain overrides are available
+# through DOMAIN_BRANDING.
+# PWA_SCREENSHOT_MOBILE_URL=/branding/screenshot-mobile.png
+# PWA_SCREENSHOT_DESKTOP_URL=/branding/screenshot-desktop.png
+
 # ---------------------------------------------------------------------------
 # Logos
 # ---------------------------------------------------------------------------
@@ -234,6 +274,23 @@ LOGIN_COMPANY_NAME=Bulwark Webmail
 # URL for the company website link on the login page.
 LOGIN_WEBSITE_URL=https://bulwarkmail.org
 
+# Cap the login logo's rendered size. Any CSS length ("120px", "8rem").
+# Unset means the logo renders at its natural size.
+# LOGIN_LOGO_MAX_HEIGHT=96px
+# LOGIN_LOGO_MAX_WIDTH=320px
+
+# Hide parts of the login page. All default to true.
+# Turn the heading and subtitle off when the logo already reads as the brand.
+# LOGIN_SHOW_HEADING=false
+# LOGIN_SHOW_SUBTITLE=false
+#
+# Hide the optional TOTP field. A server that requires TOTP (totp_required)
+# still shows it regardless of this setting.
+# LOGIN_SHOW_TOTP=false
+#
+# Hide the version number, so it isn't disclosed to unauthenticated visitors.
+# LOGIN_SHOW_VERSION=false
+
 # ---------------------------------------------------------------------------
 # Per-domain branding overrides (optional)
 # ---------------------------------------------------------------------------
@@ -266,6 +323,108 @@ LOGIN_WEBSITE_URL=https://bulwarkmail.org
 # your own directory (e.g. http://localhost:3001 for local development).
 # EXTENSION_DIRECTORY_URL=https://extensions.bulwarkmail.org
 
+# =============================================================================
+# Admin Dashboard Access
+# =============================================================================
+
+# Bootstrap password for the admin dashboard. Read only when admin.json does
+# not already exist; the app hashes it, writes admin.json, and logs a warning
+# telling you to remove this variable. Without it (and without the setup
+# wizard) the admin dashboard stays disabled.
+# Accepts a plaintext password or an existing hash.
+# ADMIN_PASSWORD=change-me
+
+# Admin session lifetime in seconds. Default: 3600 (1 hour).
+# ADMIN_SESSION_TTL=3600
+
+# How many trusted reverse proxies sit in front of the app. The client IP is
+# taken that many entries from the right of X-Forwarded-For, so an attacker
+# can't spoof it by prepending values. Default: 1.
+# TRUSTED_PROXY_DEPTH=2
+
+# Allow search engines to index the app (robots.txt / noindex). Default: false.
+# SEARCH_ENGINE_INDEXING=true
+
+# =============================================================================
+# Cookies, Embedding & Reverse Proxies
+# =============================================================================
+
+# SameSite attribute for session cookies: lax (default), strict, or none.
+# Embedding the app cross-origin in an iframe requires "none".
+# COOKIE_SAME_SITE=none
+
+# Force the Secure flag on cookies. Defaults to on when NODE_ENV=production or
+# COOKIE_SAME_SITE=none. Set to false only for local HTTP development.
+# COOKIE_SECURE=false
+
+# Who may frame the app, as a CSP frame-ancestors value. Defaults to 'none',
+# which blocks all framing. Space-separate multiple origins.
+# ALLOWED_FRAME_ANCESTORS=https://portal.example.com
+
+# Origin of the parent page when embedded, used for postMessage handshakes.
+# NEXT_PUBLIC_PARENT_ORIGIN=https://portal.example.com
+
+# =============================================================================
+# Update Check
+# =============================================================================
+
+# The app periodically checks for new releases and shows a notice. Set to
+# "off" (or false/0/no) to disable the check entirely.
+# BULWARK_UPDATE_CHECK=off
+
+# Override the endpoint it checks. Takes priority over the on-disk state file.
+# An explicit empty value also disables the check.
+# BULWARK_UPDATE_CHECK_URL=https://updates.example.com/bulwark.json
+
+# Where the check stores its state. Default: ./data/version-check
+# VERSION_CHECK_DATA_DIR=./data/version-check
+
+# =============================================================================
+# Translation Proxy (optional)
+# =============================================================================
+
+# /api/translate defaults to the public MyMemory API, which needs no setup.
+# Point it at a LibreTranslate instance instead to keep message text on
+# infrastructure you control. LibreTranslate also auto-detects the source
+# language natively.
+# LIBRETRANSLATE_URL=https://libretranslate.example.com
+# LIBRETRANSLATE_API_KEY=
+
+# =============================================================================
+# Web Push
+# =============================================================================
+
+# Push notifications go through a hosted relay so self-hosters don't need
+# their own VAPID keys and Firebase project. Point this at your own relay to
+# avoid the default. Build-time variable.
+# Default: https://notifications.relay.bulwarkmail.org
+# NEXT_PUBLIC_PUSH_RELAY_URL=https://push.example.com
+
+# =============================================================================
+# Demo Mode
+# =============================================================================
+
+# Serve fixture data instead of talking to a mail server. Default: false.
+# DEMO_MODE=true
+
+# =============================================================================
+# Stalwart Impersonation (advanced)
+# =============================================================================
+
+# Lets a trusted platform mint a JWT that logs a user in without their
+# password, using a Stalwart master account. Intended for embedded
+# deployments where an outer platform already authenticated the user.
+#
+# SECURITY: this grants sign-in as any mailbox on the server. The endpoint
+# returns 404 unless all three required variables below are set, so leaving
+# them unset keeps the feature fully off. Treat the secret and the master
+# password as you would a root credential.
+#
+# BULWARK_JWT_AUTH_SECRET=            # required, >= 32 characters
+# BULWARK_STALWART_MASTER_USER=       # required, e.g. master@example.com
+# BULWARK_STALWART_MASTER_PASSWORD=   # required
+# BULWARK_JWT_AUTH_ISSUER=            # optional, default "platform-api/webmail"
+
 # =============================================================================
 # Internationalization
 # =============================================================================
@@ -274,7 +433,9 @@ LOGIN_WEBSITE_URL=https://bulwarkmail.org
 #
 # Fallback UI locale used when the visitor's Accept-Language header does not
 # match any supported locale. Defaults to "en".
-# Supported: cs, da, de, en, es, fr, it, ja, ko, lv, nl, pl, pt, ru, tr, uk, zh
+# Supported: ar, ca, cs, da, de, en, es, fa, fr, he, hu, it, ja, ko, lv, nl, pl,
+#            pt, ro, ru, sk, tr, uk, zh
+# An unsupported value falls back to "en".
 # NEXT_PUBLIC_DEFAULT_LOCALE=tr
 
 # Locale prefix mode for URLs. Recommended "always" when proxying under a

.github/workflows/docker-publish-releases.yml

@@ -118,3 +118,114 @@ jobs:
       - name: Inspect image
         run: |
           docker buildx imagetools inspect ${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}
+
+  build-always:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: linux/amd64
+            runner: ubuntu-latest
+          - platform: linux/arm64
+            runner: ubuntu-24.04-arm
+    runs-on: ${{ matrix.runner }}
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+
+      - name: Build and push by digest
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            GIT_COMMIT=${{ github.sha }}
+            NEXT_PUBLIC_LOCALE_PREFIX=always
+          outputs: type=image,name=${{ env.IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true
+          cache-from: type=gha,scope=always-${{ matrix.platform }}
+          cache-to: type=gha,mode=max,scope=always-${{ matrix.platform }}
+
+      - name: Export digest
+        run: |
+          mkdir -p /tmp/digests-always
+          digest="${{ steps.build.outputs.digest }}"
+          touch "/tmp/digests-always/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-always-${{ matrix.platform == 'linux/amd64' && 'amd64' || 'arm64' }}
+          path: /tmp/digests-always/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge-always:
+    runs-on: ubuntu-latest
+    needs: build-always
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp/digests-always
+          pattern: digests-always-*
+          merge-multiple: true
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+          flavor: |
+            suffix=-always,onlatest=true
+          tags: |
+            type=raw,value=latest
+            type=semver,pattern=v{{version}}
+            type=semver,pattern={{version}}
+            type=semver,pattern=v{{major}}.{{minor}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern=v{{major}}
+            type=semver,pattern={{major}}
+
+      - name: Create manifest list and push
+        working-directory: /tmp/digests-always
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.IMAGE_NAME }}@sha256:%s ' *)
+
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}

.github/workflows/electron-build.yml

@@ -0,0 +1,89 @@
+name: Build Electron Desktop App
+
+# Phase 1 of the VNCprodbuild rollout (~/.claude/skills/VNCprodbuild/SKILL.md
+# on the machine that authored this - Phase 1 step 8). Builds the desktop
+# shell (electron/) for macOS, Windows, and Linux on every release, or
+# on-demand via workflow_dispatch for a one-off test build.
+#
+# Ships UNSIGNED. There's no Apple Developer ID or Windows code-signing cert
+# yet (VNCprodbuild Phase 1 step 9 - both are human-owned purchases, not
+# something CI can provide). CSC_IDENTITY_AUTO_DISCOVERY: "false" below stops
+# electron-builder from probing for a macOS signing identity it won't find.
+# Adding real certs later needs no rewrite here - just add CSC_LINK/
+# CSC_KEY_PASSWORD (macOS) and/or WIN_CSC_LINK/WIN_CSC_KEY_PASSWORD (Windows)
+# as repo secrets and electron-builder picks them up automatically.
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build standalone Next.js server
+        run: npm run build:standalone
+
+      - name: Bundle Electron main/preload
+        run: npm run build:electron
+
+      # Only Linux runners lack a display server by default - macOS/Windows
+      # GitHub-hosted runners can launch a real (if headless) GUI session
+      # without one.
+      - name: Install Xvfb (Linux)
+        if: runner.os == 'Linux'
+        run: sudo apt-get update && sudo apt-get install -y xvfb
+
+      # Required gate (VNCprodbuild Phase 1 step 2) before any packaging or
+      # artifact-upload step below, on every OS in the matrix - a
+      # platform-specific regression in electron/main.ts (path handling,
+      # spawn behavior, etc.) should fail exactly the leg it breaks, not
+      # slip through because only one OS was ever smoke-tested.
+      - name: Run Electron smoke test (Linux, via Xvfb)
+        if: runner.os == 'Linux'
+        run: xvfb-run --auto-servernum npm run test:electron
+
+      - name: Run Electron smoke test
+        if: runner.os != 'Linux'
+        run: npm run test:electron
+
+      - name: Package
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CSC_IDENTITY_AUTO_DISCOVERY: "false"
+        run: npx electron-builder --config electron-builder.config.js --publish ${{ github.event_name == 'release' && 'always' || 'never' }}
+
+      - name: Upload artifact (workflow_dispatch)
+        if: github.event_name == 'workflow_dispatch'
+        uses: actions/upload-artifact@v4
+        with:
+          name: vncmail-plus-desktop-${{ matrix.os }}
+          path: |
+            dist-electron-builds/*.dmg
+            dist-electron-builds/*.zip
+            dist-electron-builds/*.exe
+            dist-electron-builds/*.AppImage
+            dist-electron-builds/*.deb
+          retention-days: 7
+          if-no-files-found: ignore

.github/workflows/pr-verify.yml

@@ -0,0 +1,28 @@
+name: PR Verify
+
+# Required status check on `main` (Settings -> Branches). Mirrors the GitLab
+# CI `verify` stage (.gitlab-ci.yml) so both remotes gate merges the same
+# way: typecheck, lint, translations, and a real production build — no
+# registry, no cluster, nothing that can be blocked by infra that's down.
+on:
+  pull_request:
+    branches:
+      - main
+      - dev
+
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: npm
+      - run: npm ci
+      - run: npm run typecheck
+      - run: npm run lint
+      - run: npm run test:translations
+      - run: npm run build
+        env:
+          GIT_COMMIT: ${{ github.sha }}

.gitignore

@@ -38,6 +38,14 @@ yarn-error.log*
 # vercel
 .vercel
 
+# electron (see electron/, scripts/build-electron.mjs, electron-builder.config.js)
+/dist-electron/
+/dist-electron-builds/
+
+# playwright output
+/test-results/
+/playwright-report/
+
 # typescript
 *.tsbuildinfo
 next-env.d.ts
@@ -50,3 +58,19 @@ next-env.d.ts
 
 # Sibling repos
 /repos/
+
+# k8s deploy secrets (create from the matching overlay's secret.example.yaml)
+/deploy/k8s/overlays/*/secret.yaml
+
+# First-party plugin build output (rebuild with: npm run build:plugins).
+# vnc/plugins/build/ is the staging dir the server installs from at startup
+# (see lib/admin/bundled-plugins.ts) - built, never committed.
+vnc/plugins/build/
+vnc/plugins/*/node_modules/
+vnc/plugins/*/dist/
+vnc/plugins/smime/smime-vnc.zip
+vnc/plugins/smime/smime.zip
+
+# macOS
+.DS_Store
+electron-ai-local-index-result.png

.gitlab-ci.yml

@@ -0,0 +1,165 @@
+# GitLab-CI dev→prod pipeline for VNCmail+ — GitOps via ArgoCD.
+#
+# Design:
+#   - MR into `dev`: verify only (typecheck/lint/unit test/build check). No
+#     push, no deploy — this is the multi-developer merge gate.
+#   - Push to `dev`: build+push an immutable `sha-<sha>` tag with Docker +
+#     docker-in-docker, then commit a one-line tag-bump into
+#     overlays/dev/image-tag/kustomization.yaml (`[skip ci]`). ArgoCD's
+#     `vncmail-dev` Application syncs it automatically.
+#   - Push to `main`: NEVER rebuilds. `main` only advances via
+#     `git merge --ff-only dev`, so main's HEAD commit already has a built
+#     image. This job just bumps overlays/prod/image-tag/kustomization.yaml
+#     to point at that same tag. The actual promotion gate is a HUMAN
+#     clicking Sync on the `vncmail-prod` ArgoCD Application.
+#
+# Deliberately single-platform (linux/amd64) — this pipeline serves two
+# known amd64 microk8s clusters, not public multi-arch distribution (that's
+# what the GHCR release workflows are for, untouched by this file).
+#
+# Prerequisite this file assumes:
+#   - A GitLab Runner with Docker-in-Docker service support (Kubernetes or
+#     Docker executor). The `docker:28.4.0-dind` service requires privileged
+#     mode on most Kubernetes executors.
+#   - Either "allow this job token to push to this project" enabled
+#     (Settings → CI/CD → Job token permissions), OR a project access token
+#     with `write_repository` scope in $GITLAB_PUSH_TOKEN. The bump jobs
+#     try CI_JOB_TOKEN first (see the script).
+#
+# deploy/k8s/ca/ (the EJBCA internal CA) is never referenced anywhere below,
+# and neither ArgoCD Application in deploy/argocd/ points at it — that stays
+# a fully manual, human-only runbook (see deploy/k8s/ca/README.md).
+
+stages:
+  - verify
+  - build
+  - bump-dev
+  - bump-prod
+
+variables:
+  IMAGE: $CI_REGISTRY_IMAGE
+  GIT_STRATEGY: clone
+  DOCKER_DRIVER: overlay2
+  # DinD service is reached at the `docker` alias (set explicitly on the
+  # service below), not localhost. TLS disabled so the daemon listens on
+  # plaintext 2375 — same pattern as the working vnc-localidp pipeline.
+  DOCKER_HOST: tcp://docker:2375
+  DOCKER_TLS_CERTDIR: ""
+
+# ---------------------------------------------------------------------------
+# verify — required check on every MR into dev. No registry, no cluster.
+# ---------------------------------------------------------------------------
+verify:
+  stage: verify
+  image: node:24-alpine
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
+  script:
+    - npm ci
+    - npm run typecheck
+    - npm run lint
+    - npm run test:translations
+    - npm run build
+  # test:integration is deliberately NOT here — it spins up a real Stalwart
+  # fixture via docker-compose, which needs an actual Docker daemon this
+  # runner's Kubernetes executor doesn't provide without privileged mode
+  # (see the build job below). Candidate for a separate scheduled job on a
+  # differently-configured runner, not a blocker on every MR.
+
+# ---------------------------------------------------------------------------
+# build — push to dev only. Builds once; main never rebuilds (see header).
+# ---------------------------------------------------------------------------
+build:
+  stage: build
+  image: docker:28.4.0
+  services:
+    - name: docker:28.4.0-dind
+      alias: docker
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "dev"'
+  before_script:
+    - until docker info; do sleep 1; done
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" "$CI_REGISTRY"
+  script:
+    - >
+      docker build
+      --build-arg GIT_COMMIT=$CI_COMMIT_SHA
+      -t "$IMAGE:sha-$CI_COMMIT_SHORT_SHA"
+      -t "$IMAGE:dev-latest"
+      .
+    - docker push "$IMAGE:sha-$CI_COMMIT_SHORT_SHA"
+    - docker push "$IMAGE:dev-latest"
+
+# ---------------------------------------------------------------------------
+# bump-dev — no cluster access. Commits the just-built tag into the overlay
+# ArgoCD watches; ArgoCD's automated sync does the actual apply.
+# ---------------------------------------------------------------------------
+bump-dev:
+  stage: bump-dev
+  # alpine/git:2.47.0 was never published on Docker Hub — the 2.47.x line
+  # starts at 2.47.1. Using 2.47.2 (latest 2.47.x).
+  image: alpine/git:2.47.2
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "dev"'
+  script:
+    - TAG="sha-$CI_COMMIT_SHORT_SHA"
+    - |
+      cat > deploy/k8s/overlays/dev/image-tag/kustomization.yaml <<EOF
+      # Owned by CI (bump-dev job in .gitlab-ci.yml) - regenerated every
+      # push to dev. Do not hand-edit; edits here get overwritten.
+      apiVersion: kustomize.config.k8s.io/v1alpha1
+      kind: Component
+      images:
+        - name: vncmail-plus
+          newName: $IMAGE
+          newTag: $TAG
+      EOF
+    - git config user.name "vncmail-ci"
+    - git config user.email "ci@vnc.biz"
+    - git add deploy/k8s/overlays/dev/image-tag/kustomization.yaml
+    - |
+      if git diff --cached --quiet; then
+        echo "No change (tag already pinned) - nothing to commit"
+      else
+        git commit -m "chore(deploy): pin dev to $TAG [skip ci]"
+        git push "https://gitlab-ci-token:${GITLAB_PUSH_TOKEN:-$CI_JOB_TOKEN}@${CI_SERVER_HOST}/${CI_PROJECT_PATH}.git" HEAD:dev
+      fi
+
+# ---------------------------------------------------------------------------
+# bump-prod — no cluster access, no rebuild. Points overlays/prod at the
+# exact tag already running on dev. Does NOT deploy anything: vncmail-prod's
+# ArgoCD Application has manual sync, so this only prepares what a human
+# would be syncing, it doesn't sync it.
+# ---------------------------------------------------------------------------
+bump-prod:
+  stage: bump-prod
+  image: alpine/git:2.47.2
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "main"'
+  script:
+    - TAG="sha-$CI_COMMIT_SHORT_SHA"
+    - echo "main advanced to $CI_COMMIT_SHA (must be a dev commit, ff-only) - that image already exists as $IMAGE:$TAG"
+    - |
+      cat > deploy/k8s/overlays/prod/image-tag/kustomization.yaml <<EOF
+      # Owned by CI (bump-prod job in .gitlab-ci.yml) - regenerated every
+      # push to main. Do not hand-edit; edits here get overwritten. Bumping
+      # this is NOT the same as deploying it - vncmail-prod's ArgoCD
+      # Application has manual sync, see the note in the parent
+      # kustomization.yaml.
+      apiVersion: kustomize.config.k8s.io/v1alpha1
+      kind: Component
+      images:
+        - name: vncmail-plus
+          newName: $IMAGE
+          newTag: $TAG
+      EOF
+    - git config user.name "vncmail-ci"
+    - git config user.email "ci@vnc.biz"
+    - git add deploy/k8s/overlays/prod/image-tag/kustomization.yaml
+    - |
+      if git diff --cached --quiet; then
+        echo "No change (tag already pinned) - nothing to commit"
+      else
+        git commit -m "chore(deploy): point prod overlay at $TAG (not synced - manual gate in ArgoCD) [skip ci]"
+        git push "https://gitlab-ci-token:${GITLAB_PUSH_TOKEN:-$CI_JOB_TOKEN}@${CI_SERVER_HOST}/${CI_PROJECT_PATH}.git" HEAD:main
+      fi

CHANGELOG.md

@@ -1,5 +1,155 @@
 # Changelog
 
+## 1.7.9 (2026-08-07)
+
+### Bug Fixes (Phase 1 — VNCmailgraph audit)
+
+- **Mail**: Network transport failures now throw `TransportError` instead of returning empty results, so offline/network-down is distinguishable from an empty folder (#C1)
+- **Mail**: Push handler now refreshes contacts and files on remote state changes (#H1)
+- **Calendar**: Recurrence expansion IDs use `::occurrence::` delimiter to prevent collision with shared-event prefixes (#C2)
+- **Calendar**: Cross-account event aggregation now deduplicates by UID + recurrenceId, preventing phantom duplicates (#C3)
+- **Calendar**: `calendarTasksEnabled` admin policy now enforced at runtime, not just in settings UI (#H13)
+- **Tasks**: All task mutations (update, delete, toggle) now have error handling with store error state (#H14)
+- **Settings**: `updateSetting()` now checks admin policy lock before writing; `force` opt-in for legitimate bypassers (#C7)
+- **Settings**: `autoSelectReplyIdentity` now defaults to `true` — auto-identity selection on by default (#H18)
+- **Templates**: HTML template bodies are now sanitized with DOMPurify on import to prevent stored XSS (#H7)
+- **Auth**: User authentication endpoints now rate-limited — 10 attempts per (IP + username) per 15 minutes (#H3)
+- **Auth**: Admin sessions now support token revocation via JTI blacklist on logout (#C4)
+- **Auth**: Secure cookie flag now derived from `x-forwarded-proto`, not `NODE_ENV` (#H8)
+- **Auth**: OAuth token exchange error logs no longer leak `access_token` (#H4)
+- **Auth**: `isHashed()` no longer accepts bcrypt prefixes — scrypt-only, preventing lockout from bcrypt passwords (#H9)
+- **Push**: WS→SSE fallback now awaits state snapshot before reconciliation to prevent missed deliveries (#H2)
+- **Push**: Offline event handler added — push transports pause when browser goes offline, reconnect on online (#C8)
+- **Index**: FTS5 schema-drop now logs a warning so operators know a rebuild is needed (#C6)
+
+---
+
+## 1.7.8 (2026-07-22)
+
+### Features
+
+- **Unified Mailbox**: Account-bounded Unified Mailbox with opt-in cross-account aggregation (#509)
+- **Unified Mailbox**: Search in the unified views
+- **Unified Mailbox**: Live unified/All-Mail counters for shared and group accounts
+- **Mail**: Message-list category tabs
+- **Mail**: Drag-and-drop reorder for all folders
+- **Mail**: Collapse quoted reply text behind a "..." toggle (#480)
+- **Mail**: Bulk Not-Spam action in the junk selection toolbar
+- **Mail**: Unread count badge on the favicon
+- **Mail**: Message spacing setting (auto/always/edge-to-edge)
+- **Mail**: Open external links in a new tab (safely)
+- **Mail**: Strip external `url()`/`@import` from `<style>` blocks in the sanitizer (#457)
+- **Composer**: Text color picker in the composer toolbar
+- **Composer**: Contact groups as single expandable recipient chips
+- **Composer**: Drag-to-reorder To/Cc/Bcc recipient chips (#593)
+- **Composer**: Auto-detect paragraph text direction by default
+- **Templates**: HTML template support
+- **Vacation**: HTML body support in the vacation responder
+- **Send**: 'Send now' action on the send-delay toast
+- **Accounts**: Remove a specific account from the switcher
+- **Settings**: "Refresh cached data" recovery action
+- **i18n**: Full Arabic (ar) translation with RTL support
+- **Login**: `LOGIN_SHOW_TOTP` and `LOGIN_SHOW_VERSION` config flags (#520)
+- **Docker**: `NEXT_PUBLIC_LOCALE_PREFIX` build argument
+- **Plugins**: `ui.rerenderFetchedEmails` method (#668)
+- **Plugins**: `onEmailsFetched` and `onSearchResults` hooks and `getSomeEmails` JMAP method
+- **Plugins**: `onRecipientChipsChange` hook
+- **Plugins**: `webauthn.getOrCreate` API method
+- **Plugins**: Download files generated by a plugin (with `ui:download-file` consent permission)
+- **Plugins**: Submit mail without moving to a mailbox and import-to-mailbox APIs
+
+### Fixes
+
+- **Mail**: Render the email body on DOM parse instead of iframe load (#635)
+- **Mail**: Keep sidebar tag counts in step with read/unread changes
+- **Mail**: Enable thread expansion in the focused list
+- **Mail**: Show the quote bar in email replies
+- **Mail**: Honor part-type fallback when quoting replies (#649)
+- **Mail**: Detect typing inside the quoted-HTML shadow island (#654)
+- **Mail**: Keep `target`/`rel` on links in plain-text message bodies and open signature links in a new tab
+- **Accounts**: Eliminate the full-screen flash when switching accounts (including cached accounts)
+- **Accounts**: Recognize canonicalized login usernames in the account-switch guard
+- **Auth**: Guard account switch against slot→token desync and basic-auth identity mismatches
+- **Auth**: End refresh loops on sign-out and back off failed retries
+- **OAuth**: Harden OIDC discovery (timeout, retry, serve-stale)
+- **JMAP**: Preserve POST across redirects in the Stalwart JMAP passthrough (#627)
+- **JMAP**: File the post-send message with a full `mailboxIds` replacement
+- **JMAP**: Generate the Message-ID client-side using the sender's domain
+- **Identity**: Sync the default sender identity per account (#507)
+- **Attachments**: Download/view attachments on cross-account All-Mail messages
+- **Shared folders**: Route batch actions to the owner account
+- **Templates**: Insert a mail template at the caret in replies instead of prepending (#539)
+- **Templates**: Keep the signature when inserting a template (#621)
+- **Templates**: Hide template buttons when templates are disabled
+- **Calendar**: Honor "Show time in month view" on mobile instead of forcing dots (#666)
+- **Calendar**: Classify self-organized imported events as editable
+- **Contacts**: Assign a UID to contact cards on creation (#644)
+- **Spam**: Stop HELO `spf=none` from downgrading a MAIL FROM `spf=pass` (#650)
+- **Drafts**: Label the close-dialog draft button with the generic Save
+- **RTL**: Flip JS-positioned popovers and anchor floating menus with logical start/end
+- **RTL**: Isolate Latin address text from RTL bidi reordering and force LTR identity options
+- **i18n**: Register Arabic messages in the client IntlProvider
+- **i18n**: Fix the Hebrew Drafts folder label
+- **i18n**: Add missing translation keys across 22 locales
+- **Deps**: Bump `dompurify` to 3.4.12 and `next-intl` to 4.13.3
+
+## 1.7.7 (2026-07-09)
+
+### Features
+
+- **Plugins**: `ui.rerenderEmail` API and restyled read-receipt banner
+- **Plugins**: New hooks — `onBeforeBlobUpload`, `onBeforeDraftAutoSave`, `onBeforeEditDraft` (#586)
+- **Plugins**: `ui.prompt` dialog and first-class settings-section tabs
+- **Calendar**: Jalali (Persian/Shamsi) calendar support with Saturday as week start (#490)
+- **i18n**: Hebrew locale with full RTL support
+- **i18n**: Slovak translation
+- **i18n**: User-selectable regional date format
+- **Contacts**: Enable trusted-senders address book sync by default when contacts are available
+- **Mail**: Pin emails to the top of the folder list
+- **Mail**: Setting to disable the tag-color row tint in the message list
+- **Mail**: Click the sender avatar to select a message/thread (Thunderbird-style)
+- **Accounts**: Pin the default account on top and drag-to-reorder the account switcher
+- **Composer**: Recipient autocomplete from Sent, with on-demand server search
+- **Composer**: Preselect the identity of the active mailbox for new messages
+- **Email**: Send a quick reply with Ctrl/Cmd+Enter
+- **Headers**: Parse Stalwart spam headers
+- **Login**: Configurable logo size and hideable heading/subtitle
+- **PWA**: Apple Touch icons for the iOS home screen
+
+### Fixes
+
+- **Mail**: Hide Files when the account lacks the filenode capability (#563)
+- **Mail**: Keep advanced search filters applied when switching folders (#553)
+- **Mail**: Keep the email list scrollable when the bottom reading pane is enabled with no conversation selected
+- **Mail**: Route keyword writes to the email's own account in unified view
+- **Mail**: Render emails that set `height:100%` on a wrapper element
+- **Mail**: Hide images that fail to load
+- **Mail**: Storage quota not shown with Stalwart (#577)
+- **Spam**: Hide the spam action in Sent, Drafts and Scheduled
+- **Spam**: Fix stale folder counters and open message after spam actions
+- **Composer**: Wait for in-flight attachment uploads before sending
+- **Composer**: Only commit a recipient on Space when the input is a valid email (#571)
+- **Composer**: Attachment reminder now ignores quoted text on reply/forward (#570)
+- **Calendar**: Store the event organizer as owner-only to prevent duplicate ORGANIZER/ATTENDEE
+- **Calendar**: Strike through cancelled events and mute their reminders (#572)
+- **Calendar**: Use `calendarAddress`/`organizerCalendarAddress` for scheduling, drop retired `sendTo`/`replyTo` (#500)
+- **Auth**: Keep the session when the auth server is briefly unreachable
+- **Shortcuts**: Make keyboard shortcuts layout-agnostic and map by physical position
+- **Shortcuts**: Don't toggle mailbox subfolders on Arrow keys while typing
+- **Contacts**: Clear the photo on the server by sending `media: null` when removed
+- **Plugins**: Preserve the settings slot and privileged tier
+- **Pro**: Prompt to save or discard a draft when closing a compose tab via the tab-bar X
+- **Pro**: Show the Edit button on draft emails opened in a new tab
+- **List**: Shift-click on the checkbox extends the selection (range)
+- **CSP**: Allow external/data fonts so email webfonts render
+- **Notifications**: Brand push notifications with the configured PWA icon
+- **Notifications**: Notification sound preview — base-path prefix and longer default beep
+- **Unsubscribe**: Send `mailto:` unsubscribe ourselves instead of via the OS handler
+- **Branding**: Apply per-domain favicon override in root metadata (#585)
+- **Settings**: Load the trusted-senders address book on the settings page so the count isn't 0
+- **Setup**: Clone source when `setup.sh` runs detached from a checkout (#518)
+- **Server**: Use a callable `.get` to detect `Headers` in `pickRequestHost`
+
 ## 1.7.6 (2026-06-28)
 
 ### Breaking Changes

CONTRIBUTING.md

@@ -10,13 +10,13 @@
 
 # Contributing to Bulwark Webmail
 
-We're writing the webmail we wanted in 2026 and didn't find. Modern protocol, modern tooling, modern UI. Not a SaaS. Not a startup. Not for sale.
+We're writing the webmail we wanted in 2026 and didn't find: a JMAP-native client with an interface built this decade. It's AGPL and self-hosted, run by the people who use it rather than sold to them.
 
-If that resonates with you, we'd love your help. This guide covers how to get the project running, the conventions we follow, and how to land your first change.
+If that sounds like your kind of project, we'd love the help.
 
-## Join the Community
+## Join the community
 
-You don't need to be an expert to contribute. Whether you're setting up your dev environment for the first time, filing a bug, or translating a string, the Discord is the fastest way to get unstuck and meet the people working on this.
+You don't need to be an expert to contribute. A dev environment that won't start, a bug you're not sure how to report, a translation you're stuck on: Discord is the fastest way to get unstuck and to meet the people working on this.
 
 - **Get support** - real-time help with development hurdles
 - **Share ideas** - feature suggestions, design feedback, doc improvements
@@ -26,9 +26,9 @@ You don't need to be an expert to contribute. Whether you're setting up your dev
 
 ---
 
-## Getting Started
+## Getting started
 
-### Development Setup
+### Development setup
 
 1. **Fork and clone** the repository:
 
@@ -46,16 +46,22 @@ You don't need to be an expert to contribute. Whether you're setting up your dev
 3. **Set up environment**:
 
    ```bash
-   cp .env.example .env.local
-   # Edit .env.local with your JMAP server URL
+   cp .env.dev.example .env.local
    ```
 
+   This enables the built-in mock JMAP server (`DEV_MOCK_JMAP=true`), so you can
+   develop without a mail server. Log in with any username and password. To work
+   against a real server instead, copy `.env.example` and set `JMAP_SERVER_URL`.
+
 4. **Start development server**:
+
    ```bash
    npm run dev
    ```
 
-### Code Quality
+   Then open http://localhost:3000.
+
+### Code quality
 
 Before submitting a pull request, ensure your code passes all checks:
 
@@ -72,7 +78,20 @@ npm run lint:fix
 
 These checks run automatically on commit via Husky pre-commit hooks.
 
-## Code Style Guidelines
+### Testing
+
+| Suite            | Command                    | What it covers                                                     |
+| ---------------- | -------------------------- | ------------------------------------------------------------------ |
+| **Unit**         | `npx vitest run`           | Vitest + jsdom. Tests live in `__tests__/` folders next to the code |
+| **Translations** | `npm run test:translations` | Locale files checked for structural drift against English           |
+| **Integration**  | `npm run test:integration`  | Playwright against a real Stalwart server in Docker                 |
+| **E2E smoke**    | `npx playwright test`      | UI smoke tests against `npm run dev`                                |
+
+Run a single unit test file with `npx vitest run lib/__tests__/<name>.test.ts`, or `npx vitest` to watch.
+
+The integration suite needs Docker and takes several minutes; it has its own setup notes and findings log in [integration/README.md](integration/README.md). New behavior that touches mail/folder synchronization or multi-account handling belongs there.
+
+## Code style guidelines
 
 ### TypeScript
 
@@ -81,7 +100,7 @@ These checks run automatically on commit via Husky pre-commit hooks.
 - Avoid `any` types when possible
 - Use meaningful variable and function names
 
-### React Components
+### React components
 
 - Use functional components with hooks
 - Keep components focused and single-purpose
@@ -97,7 +116,9 @@ These checks run automatically on commit via Husky pre-commit hooks.
 
 ## Internationalization (i18n)
 
-This project uses **next-intl**. English (`/locales/en/common.json`) is the source of truth; we ship 15 additional locales (cs, de, es, fr, it, ja, ko, lv, nl, pl, pt, ru, tr, uk, zh).
+This project uses **next-intl**. English (`/locales/en/common.json`) is the source of truth; we ship 23 additional locales (ar, ca, cs, da, de, es, fa, fr, he, hu, it, ja, ko, lv, nl, pl, pt, ro, ru, sk, tr, uk, zh).
+
+Arabic, Hebrew, and Persian render right-to-left (see `i18n/direction.ts`). Use Tailwind's **logical** utilities (`ms-*`/`me-*`, `ps-*`/`pe-*`, `start-*`/`end-*`) rather than physical ones (`ml-*`, `pl-*`, `left-*`) so layouts flip correctly. For popovers positioned in JS via `getBoundingClientRect()`, check `isDocumentRTL()`: inline `position: fixed` styles don't pick up logical utilities.
 
 ### Rules
 
@@ -126,9 +147,22 @@ This project uses **next-intl**. English (`/locales/en/common.json`) is the sour
    router.push(`/${params.locale}/settings`);
    ```
 
-## Pull Request Process
+### Adding a new locale
 
-### Before Submitting
+Registering a new locale takes edits in four places:
+
+1. `locales/<code>/common.json` - copy `locales/en/common.json` and translate
+2. `i18n/routing.ts` - add the code to `SUPPORTED_LOCALES`
+3. `i18n/request.ts` - add a `case` to the static-import switch
+4. `components/ui/language-switcher.tsx` - add `{ value, label }` with the **native** language name, plus a flag in `components/ui/flag-icons.tsx`
+
+For a right-to-left language, also add the code to `rtlLocales` in `i18n/direction.ts`.
+
+Run `npm run test:translations` afterwards - it checks the locale files for structural drift against English.
+
+## Pull request process
+
+### Before submitting
 
 1. **Create a feature branch**:
 
@@ -138,13 +172,13 @@ This project uses **next-intl**. English (`/locales/en/common.json`) is the sour
 
 2. **Make your changes** following the code style guidelines
 
-3. **Test your changes** thoroughly
+3. **Test your changes** thoroughly, and add unit tests for new logic
 
 4. **Update translations** if you added user-facing text
 
 5. **Run all checks**:
    ```bash
-   npm run typecheck && npm run lint
+   npm run typecheck && npm run lint && npx vitest run
    ```
 
 ### Submitting
@@ -157,7 +191,7 @@ This project uses **next-intl**. English (`/locales/en/common.json`) is the sour
    - Screenshots for UI changes
    - Reference to any related issues
 
-### Commit Message Convention
+### Commit message convention
 
 Follow the conventional commits format:
 
@@ -177,25 +211,37 @@ fix: resolve attachment download issue
 docs: update README with keyboard shortcuts
 ```
 
-## Project Structure
+## Project structure
 
 ```
 webmail/
-├── app/                    # Next.js App Router pages
-│   └── [locale]/          # Locale-aware routing
-├── components/            # React components
-│   ├── email/            # Email-related components
-│   ├── layout/           # Layout components
-│   ├── settings/         # Settings components
-│   └── ui/               # Reusable UI components
-├── contexts/             # React contexts
-├── hooks/                # Custom React hooks
-├── lib/                  # Utilities and libraries
-│   └── jmap/            # JMAP client implementation
-├── locales/              # Translation files
-│   ├── en/              # English translations
-│   └── fr/              # French translations
-└── stores/               # Zustand state stores
+├── app/                       # Next.js App Router
+│   ├── (main)/[locale]/      # Locale-aware app pages (mail, calendar, contacts, files, settings)
+│   ├── (main)/admin/         # Admin dashboard
+│   ├── (main)/setup/         # First-launch setup wizard
+│   ├── (sandbox)/            # Isolated plugin sandbox routes
+│   └── api/                  # Route handlers (auth, admin, jmap, caldav, …)
+├── components/               # React components
+│   ├── email/               # Email list, viewer, composer
+│   ├── calendar/ contacts/ files/ filters/ templates/
+│   ├── layout/              # Sidebar, shell, navigation
+│   ├── settings/            # Settings panels
+│   ├── plugins/             # Plugin host UI
+│   └── ui/                  # Reusable primitives
+├── contexts/                 # React contexts
+├── hooks/                    # Custom React hooks
+├── i18n/                     # next-intl routing, locale detection, RTL direction
+├── lib/                      # Utilities and libraries
+│   ├── jmap/                # JMAP client implementation
+│   ├── stalwart/            # Stalwart-specific admin/API helpers
+│   ├── admin/ auth/ oauth/  # Config, sessions, OAuth flows
+│   ├── plugin-sandbox/      # Plugin sandbox bridge and hardening
+│   └── __tests__/           # Vitest unit tests
+├── locales/                  # Translation files, one directory per locale
+├── stores/                   # Zustand state stores
+├── public/                   # Static assets and branding
+├── e2e/                      # Playwright smoke tests (against `npm run dev`)
+└── integration/              # Dockerized Stalwart + Playwright suite
 ```
 
 ## Security

Dockerfile

@@ -8,6 +8,10 @@ ENV NEXT_TELEMETRY_DISABLED=1
 # at build time, so it cannot be changed without rebuilding.
 ARG NEXT_PUBLIC_BASE_PATH=
 ENV NEXT_PUBLIC_BASE_PATH=$NEXT_PUBLIC_BASE_PATH
+# Optional: avoid next-intl rewrite loops when served under a subpath.
+# Baked in at build time.
+ARG NEXT_PUBLIC_LOCALE_PREFIX=
+ENV NEXT_PUBLIC_LOCALE_PREFIX=$NEXT_PUBLIC_LOCALE_PREFIX
 # Optional: fallback UI locale (e.g. tr, de, fr) used when the visitor's
 # Accept-Language header does not match any supported locale. Baked in at
 # build time because next-intl wires it into client-side routing too.
@@ -17,6 +21,12 @@ ENV NEXT_PUBLIC_DEFAULT_LOCALE=$NEXT_PUBLIC_DEFAULT_LOCALE
 # `git rev-parse` inside the build can't find it - CI must pass it in.
 ARG GIT_COMMIT=unknown
 ENV GIT_COMMIT=$GIT_COMMIT
+# Build the first-party plugins (vnc/plugins/*) that ship with this fork -
+# currently the audited S/MIME plugin, which the server installs into its
+# plugin registry at startup (lib/admin/bundled-plugins.ts). Each plugin has
+# its own package.json + lockfile, so this does its own npm ci.
+# Runs BEFORE next build so a broken plugin fails the image build.
+RUN node scripts/build-plugins.mjs
 RUN npx next build --webpack
 
 FROM node:24-alpine AS runner
@@ -39,6 +49,17 @@ RUN apk upgrade --no-cache && \
 COPY --from=builder /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+# next/dist/lib/metadata/** (get-metadata-route.js and its neighbours). A
+# plain top-level require in router-utils/filesystem.js, yet Next's own
+# output file tracing for `output: "standalone"` + `next build --webpack`
+# drops the whole directory - the server crashes on its first line with
+# "Cannot find module '../../../lib/metadata/get-metadata-route'" without
+# this. Same tracing-gap class as the plugins copy below.
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules/next/dist/lib/metadata ./node_modules/next/dist/lib/metadata
+# Staged first-party plugin bundles. Read by path at runtime, so Next's output
+# file tracing does not carry them into .next/standalone - copy explicitly or
+# the image boots with the S/MIME policy toggle on and no plugin installed.
+COPY --from=builder --chown=nextjs:nodejs /app/vnc/plugins/build ./vnc/plugins/build
 RUN mkdir -p /app/data/settings /app/data/admin /app/data/admin-state /app/data/telemetry && chown -R nextjs:nodejs /app/data
 USER nextjs
 EXPOSE 3000

FEATURES.md

@@ -2,145 +2,149 @@
 
 ## Mail
 
-- Read, compose, reply, reply-all, and forward with a Tiptap rich text editor (inline images, drag-and-drop embedding, tables)
-- Gmail-style threading with inline expansion and an optional conversation toggle
-- Unified mailbox view across all connected accounts – combined Inbox, Sent, Drafts, Junk, Archive, and Trash, with group/shared accounts optionally merged in
-- Cross-account "All accounts" views – All unread, All starred, and All mail spanning every account (including shared/group folders); each aggregate list labels the source folder of every message
-- "All Mail" view that merges an account's folders (with a configurable folder selection) into a single list
-- Three selectable mail layouts: split (three-pane), focused list, and reading pane at bottom
-- Draft auto-save with identity preservation, persisted HTML body, and proper `In-Reply-To` / `References` headers on replies
-- Attachment upload, download, drag-out to local file system, and inline preview – images, inline PDF on desktop and mobile, composer attachments (click to open), and `.eml` (`message/rfc822`) attachments rendered like an email; image thumbnails and forgotten-attachment warning
-- Scheduled send and configurable send delay
+- Read, compose, reply, reply-all, and forward in a Tiptap rich-text editor that handles inline images, drag-and-drop embedding, and tables
+- Gmail-style threading, expanded inline, with a conversation toggle you can switch off
+- The Unified Mailbox combines Inbox, Sent, Drafts, Junk, Archive, and Trash. By default it stays inside the active account and its shared/group folders; an admin can unlock a cross-account mode that spans every connected account.
+- All mail, Unread, and Starred obey that same account boundary and can be narrowed to a per-account folder selection. Every row names the folder its message came from.
+- Search runs across all unified views; the per-role mailboxes add the full filter panel on top
+- Three mail layouts: split three-pane, focused list, or reading pane at the bottom
+- Drafts auto-save, keeping the chosen identity, the HTML body, and correct `In-Reply-To` / `References` headers on replies
+- Attachments upload, download, drag out to the file system, and preview inline. Images and PDFs render on desktop and mobile, composer attachments open on click, and `.eml` (`message/rfc822`) parts display as a nested email. There are list thumbnails, and a warning when you mention an attachment and forget it.
+- Scheduled send, plus a configurable delay before anything leaves the outbox
 - Read receipts (MDN, RFC 8098)
-- Editable, layout-preserving quote island when replying
-- Full-text search with JMAP filter panel, search chips, wildcards, OR conditions, and cross-mailbox queries
-- Batch operations – multi-select, archive, delete, move, tag
-- Archive modes – direct, by year, or by month
-- Multi-tag support with color labels, reordering, and drag-and-drop assignment
-- Star/unstar with configurable mark-as-read delay
-- Virtual scrolling for large mailboxes plus prefetching of initial email data on login
-- Quick reply, hover actions, sender avatars (favicon-based), and recipient popovers
-- Plain-text composer mode and Reply-To support
-- Configurable signature position (above or below quoted text) per identity
-- From-header override in the composer with optional catch-all auto-reply: replies to an alias on a domain you own auto-fill the alias as the sender even when it isn't a configured identity
-- `.eml` file import via folder right-click menu
+- Quoted text lands in an editable island that keeps the original layout
+- Full-text search with a JMAP filter panel, search chips, wildcards, OR conditions, and cross-mailbox queries
+- Multi-select for batch archive, delete, move, and tag
+- Archive directly, by year, or by month
+- Tags carry color labels, reorder by drag, and can be assigned by dropping a message onto them
+- Tags optionally nest: pick a parent when you create one and the sidebar turns them into a tree
+- Each tag can be configured to show always, only when there are unread mails or always be hidden
+- Star or unstar, with a configurable mark-as-read delay
+- Large mailboxes scroll virtually, and the first page of mail prefetches at login
+- Quick reply, hover actions, favicon-based sender avatars, recipient popovers
+- Plain-text composer mode and Reply-To
+- The signature sits above or below the quoted text, per identity
+- Override the From header in the composer. Reply to an alias on a domain you own and it auto-fills as the sender, even when no identity exists for it.
+- Import `.eml` files from the folder right-click menu
 - TNEF (`winmail.dat`) extraction and `message/rfc822` unwrapping
-- Folder management with icon picker, subfolders, and sidebar counts
-- Print directly from the viewer
-- Browser history sync for back/forward navigation
+- Folders take an icon, nest, and show counts in the sidebar
+- Print from the viewer
+- Browser back and forward move through mail history
 
 ## Calendar
 
-- Month, week, day, and agenda views with a mini-calendar sidebar and task list
-- Drag-to-reschedule, click-drag creation, and edge-resize with 15-minute snap
-- Recurring events with scoped edit/delete (this / this and following / all)
-- iMIP invitations on create and update (RFC 5545 / 6047), organizer/attendee UI, and RSVP with trust assessment
-- Inline calendar invitations in the email viewer – auto-detect `.ics`, RSVP, import
-- iCalendar import with preview, bulk create, and UID deduplication
-- iCal / webcal subscriptions with editing and batch import
-- Auto-generated birthday calendar from contacts
-- Virtual locations (video conference URLs) as first-class event fields
-- Task management with due dates, priority, and completion status
-- Shared calendars with CalDAV discovery, multi-account home resolution, and per-viewer colors
-- Week numbers, event hover preview, notifications with sound picker
-- Real-time sync via JMAP push
+- Month, week, day, and agenda views, with a mini-calendar and task list in the sidebar
+- Drag an event to reschedule it, click-drag to create one, pull an edge to resize. Everything snaps to 15 minutes.
+- Recurring events edit and delete by scope: this occurrence, this and following, or all
+- iMIP invitations on create and update (RFC 5545 / 6047), an organizer/attendee panel, and RSVP with trust assessment
+- `.ics` attachments are detected in the email viewer, so you can RSVP or import without leaving the message
+- iCalendar import previews first, then bulk-creates, deduplicating on UID
+- iCal / webcal subscriptions, editable, with batch import
+- A birthday calendar generated from your contacts
+- Virtual locations (video-conference URLs) are first-class event fields
+- Tasks with due dates, priority, and completion status
+- Shared calendars through CalDAV discovery, resolving homes across accounts, colored per viewer
+- Week numbers, hover preview, notifications with a sound picker
+- JMAP push keeps everything in sync
 
 ## Contacts
 
-- JMAP sync (RFC 9553 / 9610) with local fallback
-- Multiple address books with drag-and-drop between books
-- Contact groups with member management
-- vCard import/export (RFC 6350) with duplicate detection
-- Trusted senders stored in a dedicated JMAP address book
-- Autocomplete in the composer (To / Cc / Bcc)
+- JMAP sync (RFC 9553 / 9610), falling back to local storage
+- Several address books, with drag-and-drop between them
+- Groups with member management
+- vCard import/export (RFC 6350) that flags duplicates
+- Trusted senders live in their own JMAP address book
+- Autocomplete on To, Cc, and Bcc
 
-## Filters & Templates
+## Filters & templates
 
-- Server-side filters via JMAP Sieve Scripts (RFC 9661)
-- Visual rule builder with expanded view; conditions (From, To, Subject, Size, Body, Attachment…) with multi-value matching and actions (Move, Forward, Star, Discard…)
-- Preserves rules authored in other clients
+- Server-side filters as JMAP Sieve Scripts (RFC 9661)
+- A visual rule builder: conditions on From, To, Subject, Size, Body, Attachment and more, each matching multiple values, with actions to move, forward, star, or discard
+- Rules written in other clients survive the round-trip
 - Raw Sieve editor with syntax validation
-- Vacation responder with date range scheduling
-- Reusable email templates with placeholder auto-fill (`{{recipientName}}`, `{{date}}`, …)
+- A vacation responder you can schedule to a date range
+- Templates with placeholder auto-fill (`{{recipientName}}`, `{{date}}`, …)
 
 ## Files
 
-- JMAP FileNode browser (Stalwart native cloud storage) with a real folder hierarchy; legacy flat-named files are migrated into nested `FileNode` folders automatically on load
-- Streamed WebDAV PUT upload and folder upload with progress tracking
-- Dynamic upload limits based on server configuration
-- Grid and list views with sorting by name, size, or date
-- Previews for images, text, audio, and video
-- Clipboard operations (cut, copy, paste, duplicate), favorites, and recent files
-- JMAP sharing (RFC 9670) for files and folders – share with users or groups at read, read/write, or manager levels via a principal picker, with share indicators and a "Shared with me" sidebar section for folders other principals have shared with you
+- Browse Stalwart's native JMAP FileNode storage as a real folder tree. Legacy flat-named files migrate into nested `FileNode` folders on first load.
+- Streamed WebDAV PUT upload, whole folders included, with progress
+- Upload limits follow the server's own configuration
+- Grid or list, sorted by name, size, or date
+- Preview images, text, audio, and video
+- Cut, copy, paste, duplicate; favorites; recent files
+- JMAP sharing (RFC 9670) for files and folders. Pick a user or group from the principal picker and grant read, read/write, or manager. Shared items get an indicator, and anything other principals share with you appears under "Shared with me".
 
-## Security & Privacy
+## Security & privacy
 
-- External content blocked by default, with a trusted senders list
-- HTML sanitization via DOMPurify
-- S/MIME – manage certificates, sign, encrypt, decrypt, and verify; legacy 3DES / PBE support; per-account key isolation
-- SPF / DKIM / DMARC status indicators – surfaces the most severe SPF result and hides the "via" badge on spoofed mail
-- OAuth2 / OIDC with PKCE (Keycloak, Authentik, or built-in), OAuth-only mode, OAuth app passwords, and non-interactive SSO for embedded deployments
+- External content stays blocked until you say otherwise, and trusted senders are remembered
+- HTML sanitized through DOMPurify
+- S/MIME: manage certificates, then sign, encrypt, decrypt, and verify. Legacy 3DES / PBE is supported, and keys stay isolated per account.
+- SPF / DKIM / DMARC indicators surface the most severe SPF result and drop the "via" badge on spoofed mail
+- OAuth2 / OIDC with PKCE against Keycloak, Authentik, or the built-in provider, plus OAuth-only mode, OAuth app passwords, and non-interactive SSO for embedded deployments
 - TOTP two-factor authentication
-- Account security panel for password and 2FA management via the Stalwart admin API
-- Optional "Remember me" via AES-256-GCM encrypted httpOnly cookie
-- Enforced CSP with per-request nonce, SSRF redirect validation, PDF iframe sandbox, and IP spoofing prevention
-- Plugin hardening with dangerous-pattern detection and admin approval
+- Password and 2FA management through the Stalwart admin API
+- "Remember me" is optional and rides an AES-256-GCM encrypted httpOnly cookie
+- CSP is enforced with a per-request nonce, alongside SSRF redirect validation, a sandboxed PDF iframe, and IP spoofing prevention
+- Plugins are scanned for dangerous patterns and need admin approval
 - Newsletter unsubscribe (RFC 2369)
 
 ## Interface
 
-- Selectable mail layouts (split three-pane, focused list, reading pane at bottom) with resizable columns
-- Dark and light themes with intelligent email color transformation
-- Bundled color themes including Aurora Glass and Elastic; theme cards render as a mini mailbox mockup built from the theme's own colors, with light/dark variant chips
-- Responsive desktop, tablet, and mobile layouts
+- Split three-pane, focused list, or bottom reading pane, columns resizable
+- Dark and light themes. Email colors are remapped by luminance, so a mail hard-coded to dark-on-white stays readable on a dark background.
+- Bundled themes such as Aurora Glass and Elastic. Each theme card renders as a miniature mailbox built from that theme's own colors, with chips for the light and dark variants.
+- Layouts for desktop, tablet, and mobile
 - Full keyboard navigation
-- Drag-and-drop email organization and tag assignment
-- Interactive guided tour for new users
-- Right-click context menus, toast notifications with undo
-- Customizable toolbar position, favicon, and login branding
-- Pinnable sidebar apps with drag-and-drop reordering
-- Encrypted settings sync across devices
+- Drag and drop to organize mail and assign tags
+- A guided tour for first-time users
+- Right-click menus, and toasts that offer an undo
+- Toolbar position, favicon, and login branding are configurable
+- Sidebar apps pin and reorder by drag
+- Settings sync between devices, encrypted
 - Storage quota display
-- WCAG AA contrast, reduced-motion support, focus trap, and screen reader live regions
+- WCAG AA contrast, reduced-motion support, focus traps, and screen-reader live regions
 
 ## Internationalization
 
-19 languages: Česky · Dansk · Deutsch · English · Español · Français · Italiano · Latviešu · Magyar · Nederlands · Polski · Português · Română · Türkçe · Русский · Українська · 한국어 · 日本語 · 简体中文
+24 languages: Català · Česky · Dansk · Deutsch · English · Español · Français · Italiano · Latviešu · Magyar · Nederlands · Polski · Português · Română · Slovenčina · Türkçe · Русский · Українська · עברית · العربية · فارسی · 한국어 · 日本語 · 简体中文
 
-Automatic browser detection with persistent preference. Configurable locale URL prefix via `NEXT_PUBLIC_LOCALE_PREFIX`.
+- Arabic, Hebrew, and Persian render right-to-left; document direction and logical layout flip automatically
+- The browser's `Accept-Language` picks the first language, and the choice persists per user
+- `NEXT_PUBLIC_DEFAULT_LOCALE` sets the fallback, `NEXT_PUBLIC_LOCALE_PREFIX` the URL prefix
 
-## Identity & Multi-Account
+## Identity & multi-account
 
-- Multiple simultaneous accounts with instant switching and per-account session persistence; the 5-account cap is lifted on HTTP/2 servers (limited by browser connection pooling on HTTP/1.1)
-- Account switcher with connection status and default account selection
-- Multiple sender identities with per-identity signatures, automatic sync, and badges in viewer/list
-- Configurable signature position (above or below quoted text)
-- Sub-addressing (`user+tag@domain.com`) with configurable delimiter and contextual tag suggestions
+- Run several accounts at once and switch instantly, each keeping its own session. The 5-account cap lifts on HTTP/2 servers; on HTTP/1.1, browser connection pooling still sets the limit.
+- An account switcher showing connection status, and a default account
+- Multiple sender identities, each with its own signature, synced automatically and badged in the viewer and list
+- Signature above or below the quoted text
+- Sub-addressing (`user+tag@domain.com`), delimiter configurable, with tag suggestions drawn from context
 - Shared folders across accounts
-- Shared / group (delegated) accounts: their folders appear alongside your own and can be merged into the unified and "All accounts" views ("Include group inboxes"); their messages are fully actionable there – open, mark read, spam / not-spam, move, delete, and archive – with folder unread counts kept in sync
-- Multiple JMAP servers per deployment with optional auto-pick by email domain
-- Optional custom JMAP endpoints on the login form (`ALLOW_CUSTOM_JMAP_ENDPOINT`)
+- Shared and group (delegated) accounts put their folders next to your own, and "Include group inboxes" merges them into the Unified Mailbox. You can open, mark read, flag as spam or not-spam, move, delete, and archive their messages from there, and folder unread counts stay in step.
+- Several JMAP servers per deployment, optionally auto-picked by email domain
+- Custom JMAP endpoints on the login form, when `ALLOW_CUSTOM_JMAP_ENDPOINT` permits it
 
-## Admin & Extensibility
+## Admin & extensibility
 
-- Web setup wizard for first launch – guides through JMAP server(s), OAuth/OIDC, session secret, logging, branding (with file upload), and admin password; persists to the admin config dir, no `.env.local` editing required
-- Stalwart admin dashboard with dedicated policy sections, collapsed into a single tabbed page
-- Admin policy gates for the aggregate mail views – enable or disable the "All Mail" and the cross-account "All unread / starred / all" entries org-wide; each gated view still respects the user's own toggle
-- Split admin storage: `ADMIN_CONFIG_DIR` (operator-authored, mountable read-only after setup) and `ADMIN_STATE_DIR` (runtime audit log and login timestamps)
-- File-based secrets for JSON config: `passwordHashFile` (admin password), `sessionSecretFile`, and `oauthClientSecretFile` for Docker/Kubernetes secret mounts
-- Admin toggle for search-engine indexing (`robots.txt` / `noindex`)
-- Plugin system – schema-driven config UI, render and intercept hooks, `onAvatarResolve`, `onBeforeEmailSend`, composer-sidebar and email-banner slots, calendar event slots, i18n APIs (localizable sandboxed plugins via manifest locales and `api.i18n.t`), an `/api/translate` proxy, email-body access, and managed policy enforcement
-- Plugin hot-reload and dev-folder loading, on-demand `src/` bundling via esbuild, and `http:fetch` permission with `httpOrigins`
-- Themes – upload, enforce, and manage admin-controlled themes as ZIP bundles
-- Extension marketplace – browse and install plugins and themes from a configurable directory (`EXTENSION_DIRECTORY_URL`); install/uninstall restricted to the admin dashboard
-- Bundled plugins including Jitsi Meet calendar integration
+- A setup wizard runs on first launch and walks through JMAP servers, OAuth/OIDC, the session secret, logging, branding (uploads included), and the admin password. It writes to the admin config dir, so `.env.local` stays untouched.
+- The Stalwart admin dashboard, its policy sections collapsed into one tabbed page
+- Admin policy gates for the Unified Mailbox: turn All mail / Unread / Starred on or off org-wide, and gate cross-account capability separately (off by default, auto-enabled on upgrade for instances already using it). A gated view still respects the user's own toggle.
+- Admin storage splits in two. `ADMIN_CONFIG_DIR` is operator-authored and can be mounted read-only once setup finishes; `ADMIN_STATE_DIR` holds the runtime audit log and login timestamps.
+- JSON config can read secrets from files (`passwordHashFile`, `sessionSecretFile`, `oauthClientSecretFile`) for Docker and Kubernetes secret mounts
+- An admin toggle controls search-engine indexing (`robots.txt` / `noindex`)
+- Plugin system: a schema-driven config UI, render and intercept hooks, `onAvatarResolve`, `onBeforeEmailSend`, composer-sidebar and email-banner slots, calendar event slots, i18n APIs (sandboxed plugins localize through manifest locales and `api.i18n.t`), an `/api/translate` proxy, email-body access, and managed policy enforcement
+- Plugins hot-reload, load from a dev folder, bundle `src/` on demand through esbuild, and can request `http:fetch` scoped by `httpOrigins`
+- Themes upload as ZIP bundles, and admins can enforce one
+- An extension marketplace browses and installs plugins and themes from a configurable directory (`EXTENSION_DIRECTORY_URL`). Installing and uninstalling stay in the admin dashboard.
+- Bundled plugins, including Jitsi Meet for the calendar
 
 ## Operations
 
-- Progressive Web App with service worker, install prompt, web push notifications for inbox mail, dynamic manifest, and configurable (per-domain) install screenshots
-- Automatic update check with server-side logging of new releases and a non-dismissible update notice
-- Structured logging (`text` or `json`) with category-based levels
-- Anonymous instance telemetry (opt-in via admin UI, the installer, or `BULWARK_TELEMETRY=on`; off by default) – version, platform, bucketed account counts, feature toggles only
-- Release (`main`) and development (`dev`) Docker images on GHCR
-- Subpath deployment via `NEXT_PUBLIC_BASE_PATH` for mounting behind a reverse proxy
-- Demo mode with fixture data – no mail server required
+- Progressive Web App: service worker, install prompt, web push for new inbox mail, a dynamic manifest, and install screenshots configurable per domain
+- Update checks run on their own, log new releases server-side, and raise a notice that can't be dismissed
+- Structured logging (`text` or `json`) with per-category levels
+- Anonymous instance telemetry, off unless you enable it through the admin UI, the installer, or `BULWARK_TELEMETRY=on`. It reports version, platform, bucketed account counts, and feature toggles.
+- Docker images on GHCR, for release (`main`) and development (`dev`)
+- `NEXT_PUBLIC_BASE_PATH` mounts the app at a subpath behind a reverse proxy
+- Demo mode runs on fixture data, no mail server required

README.md

@@ -8,26 +8,19 @@
 
 # Bulwark Webmail
 
-A modern, self-hosted webmail client for [Stalwart Mail Server](https://stalw.art/), built with Next.js and the JMAP protocol.
+A self-hosted webmail client for [Stalwart Mail Server](https://stalw.art/), built with Next.js and the JMAP protocol.
 
 [![License: AGPL v3](https://img.shields.io/badge/license-AGPL%20v3-blue.svg?logo=gnu&logoColor=white)](LICENSE)
 [![Discord](https://img.shields.io/discord/1482128142939455674?color=7289da&label=discord&logo=discord&logoColor=white)](https://discord.gg/tYCujymGrT)
-[![Version](https://img.shields.io/badge/version-1.7.6-green.svg?logo=git&logoColor=white)](CHANGELOG.md)
+[![Version](https://img.shields.io/badge/version-1.7.8-green.svg?logo=git&logoColor=white)](CHANGELOG.md)
 [![Docker](https://img.shields.io/badge/docker-ghcr.io%2Fbulwarkmail%2Fwebmail-blue?logo=docker&logoColor=white)](https://ghcr.io/bulwarkmail/webmail)
-[![Grafana](https://img.shields.io/badge/grafana-dashboard-orange?logo=grafana&logoColor=white)](https://grafana.external.bulwarkmail.org/)
-
 </div>
 
 ---
 
 ## Installer
 
-New in **1.6.4**: a web-based setup wizard runs on first launch – no `.env.local` editing, no shelling into the container.
-
-<picture>
-  <source media="(prefers-color-scheme: dark)" srcset="screenshots/installer-dark.png" />
-  <img src="screenshots/installer.png" alt="Setup wizard" width="100%" />
-</picture>
+Since **1.6.4**, a web-based setup wizard runs on first launch – no `.env.local` editing, no shelling into the container.
 
 Point a browser at the running container and the wizard guides you through:
 
@@ -72,27 +65,27 @@ The wizard writes to `ADMIN_CONFIG_DIR` (`./data/admin` by default). Setting `JM
 <td><img src="screenshots/settings.png" alt="Settings" /></td>
 </tr>
 <tr>
-<td><sub><b>Light mode</b> – full theme support with intelligent color transformation for HTML emails.</sub></td>
+<td><sub><b>Light mode</b> – full theme support, remapping HTML email colors by luminance so dark-on-dark text stays readable.</sub></td>
 <td><sub><b>Settings</b> – appearance, identities, filters, templates, security, and more.</sub></td>
 </tr>
 </table>
 
-## Overview
+## What Bulwark includes
 
-Bulwark is a full webmail suite, not just an inbox. It bundles the four apps most self-hosters end up wanting on the same login:
+Bulwark is a full webmail suite. It bundles the four apps most self-hosters end up wanting:
 
 - **Mail** – threading, unified inbox, cross-account "All accounts" views, full-text search, Sieve filters, S/MIME, templates
 - **Calendar** – month/week/day/agenda, recurring events, iMIP invitations, CalDAV subscriptions
 - **Contacts** – multiple address books, groups, vCard import/export
 - **Files** – Stalwart's JMAP FileNode storage with previews and folder upload
 
-Plus the infrastructure around them: a web setup wizard, OAuth2 / OIDC SSO, TOTP 2FA, multi-account with HTTP/2 connection pooling, 18 languages, PWA install, dark/light themes, a plugin system with an extension marketplace, and an admin dashboard.
+They share one login, one settings store, and one admin dashboard. SSO, 2FA, multi-account, 24 languages, PWA install, themes, and plugins apply across all four.
 
 Full feature list: **[FEATURES.md](FEATURES.md)**.
 
 ---
 
-## Quick Start
+## Quick start
 
 ### Docker
 
@@ -106,9 +99,9 @@ Or with Docker Compose:
 docker compose up -d
 ```
 
-On first launch, open `http://localhost:3000` – the **web setup wizard** walks you through JMAP server, OAuth, branding, and the admin password. No `.env.local` editing required. Existing installs that already define `JMAP_SERVER_URL` in their environment skip the wizard and keep the env-managed flow described under [Configuration](#configuration).
+On first launch, open `http://localhost:3000` and the setup wizard takes over. Installs that already define `JMAP_SERVER_URL` skip it and keep the env-managed flow under [Configuration](#configuration).
 
-### From Source
+### From source
 
 ```bash
 git clone https://github.com/bulwarkmail/webmail.git
@@ -121,16 +114,20 @@ npm run build && npm start
 ### Development
 
 ```bash
-npm run dev        # Dev server with a mock JMAP server
+cp .env.dev.example .env.local   # Built-in mock JMAP server, no mail server needed
+
+npm run dev                # Dev server
 npm run typecheck
 npm run lint
+npx vitest run             # Unit tests
+npm run test:integration   # Dockerized Stalwart + Playwright suite (see integration/README.md)
 ```
 
 ## Configuration
 
-Most deployments are configured through the **setup wizard** (on first launch) and the **admin dashboard** thereafter; values are written to the admin config directory rather than `.env.local`. Environment variables remain supported for operators who prefer file-driven configuration or read-only / immutable infrastructure. When an environment variable is set, it takes precedence over the corresponding admin-managed value, so setting `JMAP_SERVER_URL` will hide that field from the wizard and lock it in the admin UI.
+Most deployments are configured through the setup wizard on first launch, then the admin dashboard; those values live in the admin config directory rather than `.env.local`. Environment variables still work, and they suit read-only or immutable infrastructure better. An environment variable always wins over the admin-managed value, so setting `JMAP_SERVER_URL` hides that field from the wizard and locks it in the admin UI.
 
-All variables are evaluated at runtime, so Docker deployments can be reconfigured without rebuilding. Edit `.env.local`:
+Nearly all variables are evaluated at runtime, so Docker deployments can be reconfigured without rebuilding. The exceptions are the `NEXT_PUBLIC_*` ones noted below, which Next.js bakes in at build time. Edit `.env.local`:
 
 ```env
 # Optional – overrides whatever the wizard writes
@@ -153,13 +150,28 @@ PORT=3000
 
 ```env
 OAUTH_ENABLED=true
+OAUTH_ONLY=true                   # hide the username/password form entirely
 OAUTH_CLIENT_ID=webmail
 OAUTH_CLIENT_SECRET=              # optional, for confidential clients
 OAUTH_CLIENT_SECRET_FILE=         # path to a file containing the secret
 OAUTH_ISSUER_URL=                 # optional, for external IdPs
+OAUTH_AUTHORIZE_URL=              # override only the user-facing authorize endpoint
+OAUTH_ALLOW_PRIVATE_ENDPOINTS=    # allow discovery to resolve to RFC-1918 addresses
 ```
 
-Endpoints are auto-discovered via `.well-known/oauth-authorization-server` or `.well-known/openid-configuration`.
+Endpoints are auto-discovered via `.well-known/oauth-authorization-server` or `.well-known/openid-configuration`. `OAUTH_ALLOW_PRIVATE_ENDPOINTS` is off by default as an SSRF guard. Enable it only for split-DNS deployments where the issuer's public hostname resolves to an internal IP.
+
+</details>
+
+<details>
+<summary>Anonymous telemetry</summary>
+
+```env
+BULWARK_TELEMETRY=on                 # opt-in; off by default
+TELEMETRY_DATA_DIR=./data/telemetry  # instance id and consent; mount a volume
+```
+
+Off unless you turn it on, in the admin UI, the installer, or here. Heartbeats carry version, platform, bucketed account counts, and feature toggles. No email addresses, hostnames, or IPs. Setting the variable (to either value) locks the choice and disables the admin toggle.
 
 </details>
 
@@ -257,6 +269,25 @@ The split lets you mount the config volume read-only after the setup wizard comp
 
 </details>
 
+<details>
+<summary>Default UI locale</summary>
+
+The UI language follows each visitor's `Accept-Language` header and their stored preference. `NEXT_PUBLIC_DEFAULT_LOCALE` sets the fallback used when neither matches a supported locale (default `en`):
+
+```env
+NEXT_PUBLIC_DEFAULT_LOCALE=de
+```
+
+Supported: `ar`, `ca`, `cs`, `da`, `de`, `en`, `es`, `fa`, `fr`, `he`, `hu`, `it`, `ja`, `ko`, `lv`, `nl`, `pl`, `pt`, `ro`, `ru`, `sk`, `tr`, `uk`, `zh`. An unsupported value falls back to `en`.
+
+Like `NEXT_PUBLIC_BASE_PATH`, this is read at **build time**. To use it with the published Docker image, build your own:
+
+```bash
+docker build --build-arg NEXT_PUBLIC_DEFAULT_LOCALE=de -t bulwark-webmail .
+```
+
+</details>
+
 <details>
 <summary>Subpath / reverse proxy mount</summary>
 
@@ -273,37 +304,46 @@ Unlike most other variables, `NEXT_PUBLIC_BASE_PATH` is read at **build time** b
 docker build --build-arg NEXT_PUBLIC_BASE_PATH=/webmail -t bulwark-webmail .
 ```
 
-Then point your reverse proxy at the container without stripping the prefix - the app expects to receive requests under `/webmail/...` and serves all routes (`/webmail/api/...`, `/webmail/_next/static/...`, `/webmail/sw.js`, etc.) accordingly.
+Then point your reverse proxy at the container without stripping the prefix. The app expects requests under `/webmail/...` and serves every route (`/webmail/api/...`, `/webmail/_next/static/...`, `/webmail/sw.js`, and so on) accordingly.
 
 </details>
 
-## Keyboard Shortcuts
+## Keyboard shortcuts
 
-| Key           | Action                  |
-| ------------- | ----------------------- |
-| `j` / `k`     | Navigate between emails |
-| `Enter` / `o` | Open email              |
-| `Esc`         | Close / deselect        |
-| `c`           | Compose                 |
-| `r` / `R`     | Reply / Reply all       |
-| `f`           | Forward                 |
-| `s`           | Star                    |
-| `e`           | Archive                 |
-| `#`           | Delete                  |
-| `/`           | Search                  |
-| `?`           | Show all shortcuts      |
+| Key                  | Action                  |
+| -------------------- | ----------------------- |
+| `j` `↓` / `k` `↑`    | Navigate between emails |
+| `Enter` / `o`        | Open email              |
+| `Esc`                | Close / deselect        |
+| `x`                  | Expand / collapse thread |
+| `c`                  | Compose                 |
+| `r` / `R` `a`        | Reply / Reply all       |
+| `f`                  | Forward                 |
+| `s`                  | Star                    |
+| `e`                  | Archive                 |
+| `#` / `Del`          | Delete                  |
+| `u` / `Shift`+`I`    | Mark unread / read      |
+| `!`                  | Toggle spam             |
+| `Ctrl`+`A`           | Select all              |
+| `Shift`+`G`          | Refresh                 |
+| `/`                  | Search                  |
+| `?`                  | Show all shortcuts      |
 
-## Tech Stack
+In the composer: `Ctrl/Cmd`+`Enter` sends, `Ctrl/Cmd`+`Shift`+`Enter` opens scheduled send, and `t` opens the template picker.
+
+## Tech stack
 
 |               |                                                   |
 | ------------- | ------------------------------------------------- |
-| **Framework** | [Next.js 16](https://nextjs.org/) with App Router |
+| **Framework** | [Next.js 16](https://nextjs.org/) with App Router, React 19 |
 | **Language**  | TypeScript                                        |
 | **Styling**   | [Tailwind CSS v4](https://tailwindcss.com/)       |
 | **State**     | [Zustand](https://zustand-demo.pmnd.rs/)          |
 | **Protocol**  | Custom JMAP client (RFC 8620)                     |
+| **Editor**    | [Tiptap](https://tiptap.dev/)                     |
 | **i18n**      | [next-intl](https://next-intl-docs.vercel.app/)   |
 | **Icons**     | [Lucide React](https://lucide.dev/)               |
+| **Testing**   | [Vitest](https://vitest.dev/) + [Playwright](https://playwright.dev/) |
 
 ## Why Stalwart?
 

VERSION

@@ -1 +1 @@
-1.7.6
+1.7.9

VNCMAIL-SETUP.md

@@ -0,0 +1,169 @@
+# VNCmail+ — setup & deploy runbook
+
+VNCmail+ is VNC's fork of [Bulwark](https://github.com/bulwarkmail/webmail), a
+Next.js (App Router) JMAP webmail client for **Stalwart**. Stalwart is the source
+of truth; VNCmail+ is the UI. It deploys as a **container on Kubernetes
+(microk8s)** at `vncmail.sandbox.vnc.de` — see **[deploy/k8s/](deploy/k8s/README.md)**.
+
+> **License:** AGPL-3.0. Serving a modified VNCmail+ to users over the network
+> obligates VNC to offer those users the corresponding source. Keeping this fork
+> public (with a "Source" link in the imprint/UI) satisfies that. Loop in legal
+> before a public/customer-facing launch if a closed fork is ever desired.
+
+## Architecture — why a container, not Vercel
+
+- Bulwark is a **stateful, long-lived server**: it persists settings-sync, admin
+  config/state, and telemetry to a **local data directory** (`/app/data/*`).
+- **Vercel serverless was tried and dropped** — its filesystem is read-only
+  except `/tmp`, so Bulwark's `mkdir ./data` crashes (`ENOENT /var/task/data`).
+  You cannot point its data dirs at a remote host either (they're POSIX paths,
+  not URLs). Bulwark's native model is a container + persistent volumes.
+- So VNCmail+ runs as a Docker image with **4 persistent volumes**, exactly
+  like the existing `bulwark.sandbox.vnc.de`.
+- JMAP calls go through **server-side `/api/*` routes** (`proxy.ts`) → server-to-
+  server to Stalwart, **no browser CORS**. Config is **runtime-read**.
+
+## Branches (dev-first)
+
+| Branch | Role |
+|--------|------|
+| `main` | **Production.** Only updated by `git merge --ff-only dev`, then an explicit manual promote in CI. No prod environment exists yet — see "CI/CD" below. |
+| `dev`  | Integration + QA — default working branch. Every push auto-builds and auto-deploys to the sandbox (`vncmail.sandbox.vnc.de`). |
+| `vnc/*`| Feature branches for UI work (branch off `dev`, MR into `dev` — required, gated by CI). |
+
+All VNC customization lives under `vnc/` (see `vnc/VNC-CHANGES.md`).
+
+## CI/CD — GitLab (canonical) + ArgoCD GitOps, Vercel-style dev→prod
+
+Multiple developers work on this repo now. `.gitlab-ci.yml` on
+[gitlab.vnc.biz](https://gitlab.vnc.biz/gitlab-instance-b9b5cf2f/vncmail-plus)
+(the canonical remote — GitHub `origin` is a passive mirror, not where CI or
+deploys happen) builds images and bumps a tag in git; **ArgoCD does the
+actual deploying** — already installed and idle on the `dev-k8s-1/2/3`
+cluster, discovered when standing this up. GitLab CI needs zero cluster
+credentials as a result.
+
+Two real clusters, confirmed by direct inspection:
+
+| Cluster | Role | Notes |
+|---|---|---|
+| `dev-k8s-1/2/3` | dev/sandbox | ~hours old when set up here. Traefik, metallb, cert-manager (`letsencrypt-staging` issuer only), **ArgoCD already running**. |
+| `node1/node2/node3` | prod (HA) | Older, rook-ceph+traefik+metallb+cert-manager, but **zero apps and zero ClusterIssuers** — genuinely a clean slate. |
+
+Neither cluster had a `vncmail` namespace, `vnc-ca` namespace, or `bulwark`
+ingress — the "live sandbox at vncmail.sandbox.vnc.de" referenced earlier in
+this doc's history was aspirational (manifests + docs existed, nothing was
+ever actually applied). The ingress manifests also assumed nginx (`class:
+public`, an nginx body-size annotation) — fixed to Traefik's real
+`ingressClassName: traefik` (Traefik has no default body-size cap, so no
+replacement annotation is needed).
+
+Flow:
+
+1. **MR into `dev`** → `verify` stage (typecheck/lint/unit test/build).
+   Required check — no push, no deploy.
+2. **Merge to `dev`** → `build` pushes one image,
+   `registry.gitlab.vnc.biz/.../vncmail-plus:sha-<sha>`, then `bump-dev`
+   commits that tag into `deploy/k8s/overlays/dev/image-tag/kustomization.yaml`
+   (`[skip ci]`). ArgoCD's `vncmail-dev` Application picks up the git change.
+3. **Merge to `main`** (fast-forward only, see below) → `bump-prod` points
+   `overlays/prod/image-tag/` at that same tag — **no rebuild**. The actual
+   promotion gate is a **human clicking Sync** on the `vncmail-prod` ArgoCD
+   Application, which is permanently manual-sync (never automated) — that's
+   the Vercel-style "Promote to Production" button, just living in ArgoCD's
+   UI instead of GitLab's.
+
+### What's left to wire up (one-time, human steps)
+
+1. **Add the ArgoCD deploy key to GitLab** — Project → Settings → Repository
+   → Deploy keys → add (read-only is enough):
+   ```
+   ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOURjX/Y9zfB785DyLEF1GUq4HhWujrqeXag8oxdMciq argocd@dev-k8s (vncmail-plus read-only)
+   ```
+   Until this is added, `vncmail-dev`'s ArgoCD Application (already created,
+   `kubectl -n argocd get application vncmail-dev`) shows a benign
+   `ComparisonError` (SSH handshake failing) — expected, not a bug.
+2. **Let CI push tag-bumps back to this repo** — either enable "this project
+   can be accessed by CI/CD job tokens from other projects" → actually
+   simpler: Settings → CI/CD → Job token permissions → allow this project's
+   own job token to push to itself, OR create a Project Access Token
+   (`write_repository` scope) and add it as a masked CI/CD variable
+   `GITLAB_PUSH_TOKEN` (the pipeline tries that first, falls back to
+   `CI_JOB_TOKEN`).
+3. **One-time namespace bootstrap** (CI/ArgoCD deliberately never manage
+   secret contents — see `deploy/k8s/README.md` §3):
+   ```bash
+   # against dev-k8s (ArgoCD's CreateNamespace=true will make `vncmail` on
+   # first sync, or create it yourself first — either order works)
+   kubectl create secret docker-registry ghcr-pull -n vncmail ...   # or make the GHCR package public
+   cp deploy/k8s/overlays/dev/secret.example.yaml secret.yaml   # edit SESSION_SECRET
+   kubectl apply -f secret.yaml
+   ```
+4. **First sync** — ArgoCD UI at `https://argo.devcluster.vnc.de`
+   (username `admin`, password: `kubectl -n argocd get secret
+   argocd-initial-admin-secret -o jsonpath='{.data.password}' | base64 -d`
+   — rotate it after logging in once) → `vncmail-dev` → Sync. Once that's
+   clean, flip `deploy/argocd/vncmail-dev-app.yaml`'s commented-out
+   `automated:` block on and re-apply, so dev auto-syncs on every push from
+   then on.
+5. **Production** (later, deliberately not wired yet): decide a real
+   hostname, stand up prod Stalwart, register `node1-3` as an ArgoCD-managed
+   cluster, apply `deploy/argocd/vncmail-prod-app.yaml`, fill in real
+   `overlays/prod` values, create a real ClusterIssuer on `node1-3` (there
+   isn't one today), then click Sync once — deliberately not before.
+
+Historical note: the old `-dev`/`-beta` GHCR image-name split
+(`.github/workflows/docker-publish.yml`) is retired by this — one image name
+now, environment lives only in the tag.
+
+## Deploy (Kubernetes / microk8s)
+
+Full runbook: **[deploy/k8s/README.md](deploy/k8s/README.md)**. In short:
+
+1. CI (above) builds and pushes the image, one name/many tags, to GitLab's
+   registry.
+2. `kubectl apply -k deploy/k8s/overlays/dev` (or `overlays/prod`, once real)
+   — base manifests (namespace, 4 PVCs, deployment, service, ingress) live in
+   `deploy/k8s/base/`, environment differences (namespace, hostname, replica
+   count) are overlay patches.
+3. DNS + a `secret.yaml` (from the overlay's `secret.example.yaml`, gitignored,
+   created once by hand — CI never manages secret contents) + an image-pull
+   secret are the remaining manual, human, one-time steps per environment.
+
+Runs alongside the existing `bulwark.sandbox.vnc.de`. Match your cluster's
+StorageClass / IngressClass / cert issuer to bulwark's (see the runbook).
+
+## Deploy workflow (dev-first — ALWAYS)
+
+Same flow as every other VNC/SRC repo, now enforced structurally by CI rather
+than by convention:
+
+1. Work on `dev` (or `vnc/*` → MR into `dev`, CI-gated). Merge → auto-builds
+   and auto-deploys to `vncmail.sandbox.vnc.de`. QA there.
+2. **Promote to production only on explicit go-live** — merge `dev` → `main`:
+   ```bash
+   git log dev..main            # MUST be empty — main must have nothing dev lacks (else prod would revert)
+   git checkout main && git merge --ff-only dev
+   git push gitlab main         # never GitHub — opens the manual `promote` job, does not run it
+   git checkout dev
+   ```
+   Then click `promote` in the GitLab pipeline UI (protected `production`
+   environment — requires the right role) once prod actually exists (see
+   "CI/CD" above). Never push straight to `main`. Never let a dev→main merge
+   silently revert prod.
+
+## Syncing upstream (Bulwark releases)
+
+Bring upstream into `dev` (NOT main), integrate + QA on the dev image, then promote as above:
+
+```bash
+git fetch upstream
+git checkout dev && git merge upstream/main    # resolve conflicts via vnc/VNC-CHANGES.md; QA on preview
+```
+
+## Auth
+
+Basic auth via Stalwart is the default — users sign in with their
+`@sandbox.vnc.de` address + password; VNCmail+ authenticates them over JMAP. No
+extra config. (SSO via vncdirectory/OIDC is a later option — see
+`vnc/vercel.env.template`.)

app/(main)/[locale]/calendar/page.tsx

@@ -97,9 +97,12 @@ export default function CalendarPage() {
     setSelectedDate, setViewMode, toggleCalendarVisibility, updateCalendar, shareCalendar,
     removeCalendar, clearCalendarEvents,
     refreshAllSubscriptions, icalSubscriptions,
+    newEventPrefill, setNewEventPrefill,
   } = useCalendarStore();
   const calendarEnabled = usePolicyStore((s) => s.isFeatureEnabled('calendarEnabled'));
-  const { firstDayOfWeek, timeFormat, showWeekNumbers, enableCalendarTasks, showTasksOnCalendar, calendarHoverPreview, showBirthdayCalendar, birthdayCalendarColor, updateSetting } = useSettingsStore();
+  const calendarTasksEnabled = usePolicyStore((s) => s.isFeatureEnabled('calendarTasksEnabled'));
+  const { firstDayOfWeek, timeFormat, showWeekNumbers, enableCalendarTasks: userTasksEnabled, showTasksOnCalendar, calendarHoverPreview, showBirthdayCalendar, birthdayCalendarColor, updateSetting } = useSettingsStore();
+  const enableCalendarTasks = userTasksEnabled && calendarTasksEnabled;
   const sharedCalendarColors = useSettingsStore((s) => s.sharedCalendarColors);
   const setSharedCalendarColor = useSettingsStore((s) => s.setSharedCalendarColor);
   const removeSharedCalendarColor = useSettingsStore((s) => s.removeSharedCalendarColor);
@@ -462,6 +465,19 @@ export default function CalendarPage() {
     setShowEventModal(true);
   }, [selectedDate, setSelectedDate]);
 
+  useEffect(() => {
+    if (!newEventPrefill) return;
+    setEditEvent(null);
+    if (newEventPrefill.date) {
+      const d = new Date(newEventPrefill.date);
+      if (!isNaN(d.getTime())) {
+        setDefaultModalDate(d);
+        setSelectedDate(d);
+      }
+    }
+    setShowEventModal(true);
+  }, [newEventPrefill, setSelectedDate]);
+
   const openEditModal = useCallback((event: CalendarEvent) => {
     setEditEvent(event);
     setDefaultModalDate(undefined);
@@ -1149,13 +1165,13 @@ export default function CalendarPage() {
         </div>
         <div className="px-6 py-4 space-y-3">
           <Button variant="outline" className="w-full justify-start h-auto py-3" onClick={handleImportWebcal}>
-            <span className="text-left">
+            <span className="text-start">
               <span className="block font-medium">{tWebcalAction("import_title")}</span>
               <span className="block text-xs text-muted-foreground mt-0.5">{tWebcalAction("import_description")}</span>
             </span>
           </Button>
           <Button variant="outline" className="w-full justify-start h-auto py-3" onClick={handleSubscribeWebcal}>
-            <span className="text-left">
+            <span className="text-start">
               <span className="block font-medium">{tWebcalAction("subscribe_title")}</span>
               <span className="block text-xs text-muted-foreground mt-0.5">{tWebcalAction("subscribe_description")}</span>
             </span>
@@ -1196,6 +1212,9 @@ export default function CalendarPage() {
               onContextMenuEvent={handleContextMenuEvent}
               onContextMenuEmpty={handleContextMenuEmpty}
               onCreateAtTime={openCreateModal}
+              onEditEvent={openEditModal}
+              onDeleteEvent={handleDeleteContextMenu}
+              onDuplicateEvent={handleDuplicateContextMenu}
               firstDayOfWeek={firstDayOfWeek}
               isMobile={isMobile}
               pendingPreview={pendingPreview}
@@ -1336,7 +1355,7 @@ export default function CalendarPage() {
         <>
           <div
             className={cn(
-              "border-r border-border bg-secondary overflow-y-auto flex-shrink-0 p-3",
+              "border-e border-border bg-secondary overflow-y-auto flex-shrink-0 p-3",
               !isResizing && "transition-[width] duration-300",
               isNarrow && cn(
                 "absolute inset-y-0 left-0 z-50 w-72 pt-[env(safe-area-inset-top)]",
@@ -1475,7 +1494,7 @@ export default function CalendarPage() {
 
           {/* Desktop event panel */}
           {!isMobile && showEventModal && (
-            <div className="w-[400px] border-l border-border flex-shrink-0 overflow-hidden">
+            <div className="w-[400px] border-s border-border flex-shrink-0 overflow-hidden">
               <EventModal
                 key={editEvent?.id ?? 'new'}
                 event={editEvent}
@@ -1488,17 +1507,21 @@ export default function CalendarPage() {
                 onDelete={handleDeleteEvent}
                 onDuplicate={handleDuplicateEvent}
                 onRsvp={handleRsvp}
-                onClose={() => { setShowEventModal(false); setEditEvent(null); setPendingPreview(null); setDefaultCalendarIdForCreate(undefined); setDefaultModalAllDay(false); }}
+                onClose={() => { setShowEventModal(false); setEditEvent(null); setPendingPreview(null); setDefaultCalendarIdForCreate(undefined); setDefaultModalAllDay(false); setNewEventPrefill(null); }}
                 onPreviewChange={setPendingPreview}
                 currentUserEmails={currentUserEmails}
                 isMobile={false}
+                prefillTitle={editEvent ? undefined : newEventPrefill?.title}
+                prefillDescription={editEvent ? undefined : newEventPrefill?.description}
+                prefillParticipants={editEvent ? undefined : newEventPrefill?.participants}
+                prefillDate={editEvent ? undefined : newEventPrefill?.date}
               />
             </div>
           )}
 
           {/* Desktop task panel */}
           {!isMobile && showTaskModal && (
-            <div className="w-[400px] border-l border-border flex-shrink-0 overflow-hidden">
+            <div className="w-[400px] border-s border-border flex-shrink-0 overflow-hidden">
               <TaskModal
                 key={editTask?.id ?? 'new-task'}
                 task={editTask}
@@ -1618,9 +1641,13 @@ export default function CalendarPage() {
           onDelete={handleDeleteEvent}
           onDuplicate={handleDuplicateEvent}
           onRsvp={handleRsvp}
-          onClose={() => { setShowEventModal(false); setEditEvent(null); setDefaultCalendarIdForCreate(undefined); setDefaultModalAllDay(false); }}
+          onClose={() => { setShowEventModal(false); setEditEvent(null); setDefaultCalendarIdForCreate(undefined); setDefaultModalAllDay(false); setNewEventPrefill(null); }}
           currentUserEmails={currentUserEmails}
           isMobile={true}
+          prefillTitle={editEvent ? undefined : newEventPrefill?.title}
+          prefillDescription={editEvent ? undefined : newEventPrefill?.description}
+          prefillParticipants={editEvent ? undefined : newEventPrefill?.participants}
+          prefillDate={editEvent ? undefined : newEventPrefill?.date}
         />
       )}
 

app/(main)/[locale]/contacts/page.tsx

@@ -20,7 +20,7 @@ import { exportContacts } from "@/components/contacts/contact-export";
 import { AppTopBannerSlot } from "@/components/plugins/app-top-banner-slot";
 import { useContactStore, getContactDisplayName, getContactPrimaryEmail } from "@/stores/contact-store";
 import { savePendingMailto } from "@/lib/protocol-handlers/session";
-import { formatRecipient } from "@/lib/email-composer-utils";
+import { formatRecipient, formatRecipientEntry, type Recipient } from "@/lib/email-composer-utils";
 import { useAuthStore, redirectToLogin } from "@/stores/auth-store";
 import { useEmailStore } from "@/stores/email-store";
 import { usePolicyStore } from "@/stores/policy-store";
@@ -400,8 +400,8 @@ export default function ContactsPage() {
   }, [clearSelection, toggleContactSelection, groups.length]);
 
   const handleDuplicateContact = useCallback(async (source: ContactCard) => {
-    const { id: _id, created: _created, updated: _updated, ...rest } = source;
-    void _id; void _created; void _updated;
+    const { id: _id, uid: _uid, created: _created, updated: _updated, ...rest } = source;
+    void _id; void _uid; void _created; void _updated;
     const data: Partial<ContactCard> = JSON.parse(JSON.stringify(rest));
     if (supportsSync && client) {
       await createContact(client, data);
@@ -513,23 +513,31 @@ export default function ContactsPage() {
   }, [router]);
 
   const handleComposeGroupFromSidebar = useCallback((groupId: string, field: "to" | "cc" | "bcc") => {
-    // Format each member as "Name <email>" so the composer keeps the display
-    // name (round-trips via formatRecipient -> parseRecipientList). Dedupe by
-    // email, case-insensitively; members without an email are skipped.
+    // Hand the composer a single group chip (RFC 5322 group syntax survives
+    // the string hand-off) instead of one entry per member - the chip expands
+    // into the members when the message is sent. Dedupe by email,
+    // case-insensitively; members without an email are skipped.
     const seen = new Set<string>();
-    const recipients: string[] = [];
+    const members: Array<{ name?: string; email: string }> = [];
     for (const member of getGroupMembers(groupId)) {
       const email = getContactPrimaryEmail(member).trim();
       const key = email.toLowerCase();
       if (!email || seen.has(key)) continue;
       seen.add(key);
-      recipients.push(formatRecipient(getContactDisplayName(member), email));
+      const name = getContactDisplayName(member);
+      members.push({ name: name && name !== email ? name : undefined, email });
     }
-    if (recipients.length === 0) {
+    if (members.length === 0) {
       toast.error(t("groups.no_member_emails"));
       return;
     }
-    openComposeInApp(recipients, field);
+    const group = useContactStore.getState().contacts.find((c) => c.id === groupId);
+    const chip: Recipient = {
+      name: (group && getContactDisplayName(group)) || "Group",
+      email: "",
+      group: { members },
+    };
+    openComposeInApp([formatRecipientEntry(chip)], field);
   }, [getGroupMembers, t, openComposeInApp]);
 
   const handleComposeContact = useCallback((contact: ContactCard) => {
@@ -751,7 +759,7 @@ export default function ContactsPage() {
                   <button
                     key={group.id}
                     onClick={() => handleBulkAddToGroupConfirm(group.id)}
-                    className="w-full flex items-center gap-3 px-6 py-3 text-left hover:bg-muted transition-colors"
+                    className="w-full flex items-center gap-3 px-6 py-3 text-start hover:bg-muted transition-colors"
                   >
                     <div className="w-9 h-9 rounded-full bg-primary/10 flex items-center justify-center flex-shrink-0">
                       <Users className="w-4 h-4 text-primary" />
@@ -869,7 +877,7 @@ export default function ContactsPage() {
                 <>
                   <div
                     className={cn(
-                      "border-r border-border flex flex-col flex-shrink-0 bg-background",
+                      "border-e border-border flex flex-col flex-shrink-0 bg-background",
                       !isSidebarResizing && "transition-[width] duration-300",
                       isNarrow && cn(
                         "absolute inset-y-0 left-0 z-50 w-72 pt-[env(safe-area-inset-top)]",
@@ -937,7 +945,7 @@ export default function ContactsPage() {
               <div
                 data-tour="contacts-list"
                 className={cn(
-                  "border-r border-border bg-background flex flex-col flex-shrink-0",
+                  "border-e border-border bg-background flex flex-col flex-shrink-0",
                   isMobile ? "w-full" : "",
                   !isListResizing && !isMobile && "transition-[width] duration-300"
                 )}
@@ -991,7 +999,7 @@ export default function ContactsPage() {
                     onClick={mobileBackToList}
                     className="touch-manipulation"
                   >
-                    <ArrowLeft className="w-4 h-4 mr-2" />
+                    <ArrowLeft className="w-4 h-4 me-2" />
                     {returnToEmail ? t("back_to_email") : t("back_to_contacts")}
                   </Button>
                 </div>

app/(main)/[locale]/error.tsx

@@ -38,11 +38,11 @@ export default function LocaleError({
         </p>
         <div className="flex gap-3 justify-center">
           <Button variant="outline" onClick={() => router.push('/')}>
-            <Home className="w-4 h-4 mr-2" />
+            <Home className="w-4 h-4 me-2" />
             {t("go_home")}
           </Button>
           <Button onClick={reset}>
-            <RefreshCw className="w-4 h-4 mr-2" />
+            <RefreshCw className="w-4 h-4 me-2" />
             {t("try_again")}
           </Button>
         </div>

app/(main)/[locale]/files/page.tsx

@@ -11,6 +11,7 @@ import { useAuthStore, redirectToLogin } from "@/stores/auth-store";
 import { useAccountStore } from "@/stores/account-store";
 import { useEmailStore } from "@/stores/email-store";
 import { useFileStore } from "@/stores/file-store";
+import { useProTabStore } from "@/stores/pro-tab-store";
 import { toast } from "@/stores/toast-store";
 import { cn, formatFileSize } from "@/lib/utils";
 import { NavigationRail } from "@/components/layout/navigation-rail";
@@ -411,6 +412,31 @@ export default function FilesPage() {
     await shareResource(id, principalId, rights);
   }, [shareResource]);
 
+  const handleSendAsAttachment = useCallback((names: string[]) => {
+    const store = useFileStore.getState();
+    const fileAtts = names
+      .map((name) => {
+        const r = store.resources.find((res) => res.name === name);
+        if (!r || r.isDirectory || !r.blobId) return null;
+        return {
+          blobId: r.blobId,
+          name: r.name,
+          type: r.contentType || "application/octet-stream",
+          size: r.contentLength,
+        };
+      })
+      .filter(Boolean) as Array<{ blobId: string; name: string; type: string; size: number }>;
+
+    if (fileAtts.length === 0) return;
+
+    useProTabStore.getState().openComposeTab({
+      sessionId: Date.now(),
+      mode: "compose",
+      replyTo: { attachments: fileAtts },
+      title: fileAtts.length === 1 ? fileAtts[0].name : `${fileAtts.length} attachments`,
+    });
+  }, []);
+
   // Pro shell only: all connected accounts are equal top-level entries at
   // the root. The root path "/" itself is a cross-account picker - no
   // account's files are shown until the user enters one.
@@ -477,7 +503,7 @@ export default function FilesPage() {
                     onClick={() => router.push("/")}
                     className="justify-start"
                   >
-                    <ArrowLeft className="w-4 h-4 mr-2" />
+                    <ArrowLeft className="w-4 h-4 me-2" />
                     {t("title")}
                   </Button>
                 </div>
@@ -554,6 +580,7 @@ export default function FilesPage() {
                   ownAccountId={filesAccountId}
                   sharingEnabled={sharingEnabled}
                   onShare={handleShare}
+                  onSendAsAttachment={handleSendAsAttachment}
                 />
                 </div>
               )}
@@ -611,7 +638,7 @@ export default function FilesPage() {
                   : '0%' }}
               />
             </div>
-            <p className="mt-2 text-xs text-muted-foreground tabular-nums text-right">
+            <p className="mt-2 text-xs text-muted-foreground tabular-nums text-end">
               {migrationProgress.current} / {migrationProgress.total}
             </p>
           </div>

app/(main)/[locale]/layout.tsx

@@ -7,6 +7,7 @@ import { RateLimitToastProvider } from "@/components/providers/rate-limit-toast-
 import { TourProvider } from "@/components/tour/tour-provider";
 import { ProtocolLaunchHandlerProvider } from "@/components/protocol/protocol-launch-handler-provider";
 import { ProInterfaceRedirect } from "@/components/pro/pro-interface-redirect";
+import { ImpersonationReconciler } from "@/components/impersonation/impersonation-reconciler";
 import { PluginDialogHost } from "@/components/plugins/plugin-dialog-host";
 import { PluginConsentDialog } from "@/components/plugins/plugin-consent-dialog";
 import { PWAInstallPrompt } from "@/components/pwa-install-prompt";
@@ -39,6 +40,7 @@ export default async function LocaleLayout({
               <TourProvider>
                 <ProtocolLaunchHandlerProvider>
                   <ProInterfaceRedirect />
+                  <ImpersonationReconciler />
                   {children}
                   <PluginDialogHost />
                   <PluginConsentDialog />

app/(main)/[locale]/login/page.tsx

@@ -9,6 +9,7 @@ import { Input } from "@/components/ui/input";
 import { useAuthStore } from "@/stores/auth-store";
 import { useAccountStore } from "@/stores/account-store";
 import { useThemeStore } from "@/stores/theme-store";
+import { resolveThemeLogo } from "@/lib/theme-logo";
 import { useShallow } from "zustand/react/shallow";
 import { useConfig } from "@/hooks/use-config";
 import { apiFetch, getPathPrefix, toRouterPath, withBasePath } from "@/lib/browser-navigation";
@@ -133,8 +134,27 @@ export default function LoginPage() {
   const isMobileHandoff = Boolean(mobileRedirectUri);
   const { login, loginDemo, isLoading, error, clearError, isAuthenticated } = useAuthStore();
   const { theme, setTheme, initializeTheme } = useThemeStore(useShallow((s) => ({ theme: s.theme, setTheme: s.setTheme, initializeTheme: s.initializeTheme })));
-  const { appName, jmapServerUrl: configuredServerUrl, oauthEnabled, oauthOnly, oauthClientId: globalOauthClientId, oauthIssuerUrl: globalOauthIssuerUrl, oauthScopes, rememberMeEnabled, devMode, demoMode, loginLogoLightUrl, loginLogoDarkUrl, loginCompanyName, loginImprintUrl, loginPrivacyPolicyUrl, loginWebsiteUrl, isLoading: configLoading, error: configError, autoSsoEnabled, embeddedMode: _embeddedMode, allowCustomJmapEndpoint, jmapServers, jmapServerAutoPickByDomain } = useConfig();
+  const { appName, jmapServerUrl: configuredServerUrl, oauthEnabled, oauthOnly, oauthClientId: globalOauthClientId, oauthIssuerUrl: globalOauthIssuerUrl, oauthScopes, rememberMeEnabled, devMode, demoMode, loginLogoLightUrl, loginLogoDarkUrl, loginLogoLightUrlIsCustom, loginLogoDarkUrlIsCustom, loginCompanyName, loginImprintUrl, loginPrivacyPolicyUrl, loginWebsiteUrl, loginLogoMaxHeight, loginLogoMaxWidth, loginShowHeading, loginShowSubtitle, loginShowTotp, loginShowVersion, isLoading: configLoading, error: configError, autoSsoEnabled, embeddedMode: _embeddedMode, allowCustomJmapEndpoint, jmapServers, jmapServerAutoPickByDomain } = useConfig();
   const resolvedTheme = useThemeStore((s) => s.resolvedTheme);
+  const { activeThemeId, installedThemes } = useThemeStore(useShallow((s) => ({ activeThemeId: s.activeThemeId, installedThemes: s.installedThemes })));
+  // Active theme may carry its own brand logo (VNClagoon wordmark, SRC mark);
+  // an explicitly-configured logo (Branding tab / LOGIN_LOGO_*_URL) wins
+  // over that, falling back to the theme's logo only when nothing was set.
+  const effLoginLogo = resolveThemeLogo(
+    installedThemes,
+    activeThemeId,
+    resolvedTheme === 'dark',
+    loginLogoLightUrl,
+    loginLogoDarkUrl,
+    loginLogoLightUrlIsCustom || loginLogoDarkUrlIsCustom,
+  );
+
+  // Login logo sizing: when a max height/width is configured, drop the fixed
+  // 64×64 box so the logo (e.g. a wide wordmark) can render at its true size.
+  const hasLogoSize = Boolean(loginLogoMaxHeight || loginLogoMaxWidth);
+  const loginLogoStyle = hasLogoSize
+    ? { maxHeight: loginLogoMaxHeight || undefined, maxWidth: loginLogoMaxWidth || undefined }
+    : undefined;
 
   const [formData, setFormData] = useState({
     username: "",
@@ -718,7 +738,7 @@ export default function LoginPage() {
                     )}
                   >
                     <Icon className="w-4 h-4" />
-                    <span className="flex-1 text-left">{option.label}</span>
+                    <span className="flex-1 text-start">{option.label}</span>
                     {isActive && <Check className="w-3.5 h-3.5 text-primary" />}
                   </button>
                 );
@@ -733,7 +753,7 @@ export default function LoginPage() {
             <div className="px-8 pt-12 pb-4 text-center">
               <div className="inline-flex items-center justify-center w-20 h-20 mb-6">
                 <img
-                  src={withBasePath(resolvedTheme === 'dark' ? loginLogoDarkUrl : loginLogoLightUrl)}
+                  src={withBasePath(effLoginLogo)}
                   alt={appName}
                   className="max-w-20 max-h-20 object-contain"
                 />
@@ -815,7 +835,7 @@ export default function LoginPage() {
                 )}
               </div>
             )}
-            <VersionBadge />
+            {loginShowVersion && <VersionBadge />}
           </div>
         </div>
       </div>
@@ -867,7 +887,7 @@ export default function LoginPage() {
                   )}
                 >
                   <Icon className="w-4 h-4" />
-                  <span className="flex-1 text-left">{option.label}</span>
+                  <span className="flex-1 text-start">{option.label}</span>
                   {isActive && <Check className="w-3.5 h-3.5 text-primary" />}
                 </button>
               );
@@ -881,19 +901,24 @@ export default function LoginPage() {
         <div className="rounded-2xl border border-border/60 bg-background/80 backdrop-blur-sm shadow-xl shadow-black/5 dark:shadow-black/20 overflow-hidden">
           {/* Header section with logo */}
           <div className="px-8 pt-10 pb-6 text-center">
-            <div className="inline-flex items-center justify-center w-16 h-16 mb-5">
+            <div className={cn("inline-flex items-center justify-center mb-5", !hasLogoSize && "w-16 h-16")}>
               <img
-                src={withBasePath(resolvedTheme === 'dark' ? loginLogoDarkUrl : loginLogoLightUrl)}
+                src={withBasePath(effLoginLogo)}
                 alt={appName}
-                className="max-w-16 max-h-16 object-contain"
+                className={cn("object-contain", !hasLogoSize && "max-w-16 max-h-16")}
+                style={loginLogoStyle}
               />
             </div>
-            <h1 className="text-2xl font-semibold text-foreground tracking-tight">
-              {isAddAccountMode ? t("add_account_title") : appName}
-            </h1>
-            <p className="text-sm text-muted-foreground mt-1.5">
-              {isAddAccountMode ? t("add_account_subtitle") : (t("title") !== appName ? t("title") : "Sign in to your account")}
-            </p>
+            {loginShowHeading && (
+              <h1 className="text-2xl font-semibold text-foreground tracking-tight">
+                {isAddAccountMode ? t("add_account_title") : appName}
+              </h1>
+            )}
+            {loginShowSubtitle && (
+              <p className="text-sm text-muted-foreground mt-1.5">
+                {isAddAccountMode ? t("add_account_subtitle") : (t("title") !== appName ? t("title") : "Sign in to your account")}
+              </p>
+            )}
           </div>
 
           {/* Form section */}
@@ -1121,7 +1146,7 @@ export default function LoginPage() {
                         type={showPassword ? "text" : "password"}
                         value={formData.password}
                         onChange={(e) => setFormData({ ...formData, password: e.target.value })}
-                        className="h-11 px-3.5 pr-11 bg-muted/40 border-border/60 rounded-xl focus:bg-background focus:border-primary/50 transition-all duration-200"
+                        className="h-11 px-3.5 pe-11 bg-muted/40 border-border/60 rounded-xl focus:bg-background focus:border-primary/50 transition-all duration-200"
                         placeholder={t("password_placeholder")}
                         required
                         autoComplete="current-password"
@@ -1142,8 +1167,12 @@ export default function LoginPage() {
                     </div>
                   </div>
 
-                  {/* 2FA toggle / field */}
+                  {/* 2FA toggle / field. The manual toggle can be hidden via
+                      LOGIN_SHOW_TOTP (loginShowTotp) for deployments whose mail
+                      server has no per-account TOTP (auth delegated to an
+                      external directory); server-required TOTP still shows. */}
                   {!showTotpField ? (
+                    loginShowTotp ? (
                     <button
                       type="button"
                       onClick={() => {
@@ -1155,6 +1184,7 @@ export default function LoginPage() {
                       <Shield className="w-3.5 h-3.5" />
                       {t("totp_toggle")}
                     </button>
+                    ) : null
                   ) : (
                     <div className="space-y-1.5">
                       <label htmlFor="totp" className="block text-sm font-medium text-foreground">
@@ -1241,9 +1271,9 @@ export default function LoginPage() {
                       disabled={oauthLoading || isLoading}
                     >
                       {oauthLoading ? (
-                        <Loader2 className="w-4 h-4 animate-spin mr-2" />
+                        <Loader2 className="w-4 h-4 animate-spin me-2" />
                       ) : (
-                        <LogIn className="w-4 h-4 mr-2" />
+                        <LogIn className="w-4 h-4 me-2" />
                       )}
                       {t("sign_in_sso")}
                     </Button>
@@ -1349,7 +1379,7 @@ export default function LoginPage() {
               )}
             </div>
           )}
-          <VersionBadge />
+          {loginShowVersion && <VersionBadge />}
         </div>
       </div>
     </div>

app/(main)/[locale]/pro/page.tsx

@@ -139,7 +139,7 @@ export default function ProHome() {
   const focusedPaneId = useProTabStore((s) => s.focusedPaneId);
   const loadedTabIds = useProTabStore((s) => s.loadedTabIds);
   const openTab = useProTabStore((s) => s.openTab);
-  const closeTab = useProTabStore((s) => s.closeTab);
+  const requestCloseTab = useProTabStore((s) => s.requestCloseTab);
   const setActiveTab = useProTabStore((s) => s.setActiveTab);
   const setFocusedPane = useProTabStore((s) => s.setFocusedPane);
   const moveTabToPane = useProTabStore((s) => s.moveTabToPane);
@@ -354,7 +354,7 @@ export default function ProHome() {
                 activeMainTabId={activeMainTabId}
                 activeSplitTabId={activeSplitTabId}
                 onActivate={setActiveTab}
-                onClose={closeTab}
+                onClose={requestCloseTab}
                 onDragStateChange={setIsTabDragging}
               />
 

app/(main)/[locale]/settings/page.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, useEffect, useRef, useMemo } from 'react';
+import { useState, useEffect, useRef, useMemo, useSyncExternalStore } from 'react';
 import { useRouter } from '@/i18n/navigation';
 import { useTranslations, useMessages } from 'next-intl';
 import {
@@ -34,6 +34,9 @@ import {
   Bug,
   SwatchBook,
   Download,
+  Sparkles,
+  Upload,
+  Share2,
   X,
   type LucideIcon,
 } from 'lucide-react';
@@ -45,6 +48,7 @@ import { LayoutSettings } from '@/components/settings/layout-settings';
 import { LanguageSettings } from '@/components/settings/language-settings';
 import { ReadingSettings } from '@/components/settings/reading-settings';
 import { ComposingSettings } from '@/components/settings/composing-settings';
+import { SignatureSettings } from '@/components/settings/signature-settings';
 import { ContentSendersSettings } from '@/components/settings/content-senders-settings';
 import { AccountSettings } from '@/components/settings/account-settings';
 import { IdentitySettings } from '@/components/settings/identity-settings';
@@ -66,6 +70,11 @@ import { SidebarAppsSettings } from '@/components/settings/sidebar-apps-settings
 import { NotificationSettings } from '@/components/settings/notification-settings';
 import { ThemesSettings } from '@/components/settings/themes-settings';
 import { PluginsSettings } from '@/components/settings/plugins-settings';
+import { AiAssistantSettings } from '@/components/settings/ai-assistant-settings';
+import { PluginIframeSlot } from '@/components/plugins/plugin-iframe-slot';
+import { offersForSlot as pluginOffersForSlot, subscribe as pluginRegistrySubscribe, get as getActivePlugin } from '@/lib/plugin-sandbox/registry';
+import { ImportSettings } from '@/components/settings/import-settings';
+import { SharingSettings } from '@/components/settings/sharing-settings';
 import { ProtocolHandlerSettings } from '@/components/settings/protocol-handler-settings';
 import { useAuthStore, redirectToLogin } from '@/stores/auth-store';
 import { useEmailStore } from '@/stores/email-store';
@@ -94,6 +103,7 @@ type Tab =
   | 'composing'
   | 'downloads'
   | 'identities'
+  | 'signatures'
   | 'vacation'
   | 'filters'
   | 'templates'
@@ -109,12 +119,21 @@ type Tab =
   | 'about_data'
   | 'themes'
   | 'plugins'
+  | 'import'
+  | 'sharing'
+  | 'ai_assistant'
   | 'debug';
 
 type TabGroup = 'general' | 'appearance' | 'mail' | 'privacy' | 'apps' | 'advanced';
 
+// A plugin that exposes a `settings-section` slot gets its own first-class
+// Settings entry, keyed `plugin:<id>`, so its UI (e.g. S/MIME key import) is
+// discoverable as a menu point rather than buried inside another panel.
+type PluginTabId = `plugin:${string}`;
+type SettingsTabId = Tab | PluginTabId;
+
 interface TabDef {
-  id: Tab;
+  id: SettingsTabId;
   label: string;
   icon: LucideIcon;
   group: TabGroup;
@@ -130,6 +149,7 @@ const tabIcons: Record<Tab, LucideIcon> = {
   composing: PenLine,
   downloads: Download,
   identities: UserPen,
+  signatures: PenLine,
   vacation: PalmtreeIcon,
   filters: Filter,
   templates: FileText,
@@ -145,6 +165,9 @@ const tabIcons: Record<Tab, LucideIcon> = {
   about_data: Info,
   themes: SwatchBook,
   plugins: Puzzle,
+  import: Upload,
+  sharing: Share2,
+  ai_assistant: Sparkles,
   debug: Bug,
 };
 
@@ -207,6 +230,7 @@ const tabSearchPaths: Record<Tab, string[]> = {
   ],
   downloads: ['settings.downloads'],
   identities: ['settings.identities'],
+  signatures: ['signatures'],
   vacation: ['settings.vacation'],
   filters: ['settings.filters'],
   templates: ['settings.templates'],
@@ -226,6 +250,9 @@ const tabSearchPaths: Record<Tab, string[]> = {
   about_data: ['settings.advanced'],
   themes: [],
   plugins: [],
+  ai_assistant: [],
+  import: ['settings.importer'],
+  sharing: ['sharing'],
   debug: ['settings.advanced'],
 };
 
@@ -241,6 +268,7 @@ const tabKeywords: Record<Tab, string> = {
   composing: 'editor signature plain text reply forward draft compose',
   downloads: 'download filename template eml attachment save export',
   identities: 'from address signature email',
+  signatures: 'signature rich text html editor',
   vacation: 'auto reply away out of office holiday responder',
   filters: 'sieve rules block junk forward',
   templates: 'snippet quick reply',
@@ -256,6 +284,9 @@ const tabKeywords: Record<Tab, string> = {
   about_data: 'export import storage quota privacy backup',
   themes: 'custom theme css skin appearance',
   plugins: 'extensions addons',
+  ai_assistant: 'assistant ask model llm ollama chatbot',
+  import: 'import email eml zip tgz mbox csv vcard contacts',
+  sharing: 'share shared folder calendar address book permission',
   debug: 'logs developer console diagnostic',
 };
 
@@ -330,7 +361,7 @@ const LEGACY_TAB_MAP: Record<string, Tab> = {
   advanced: 'about_data',
 };
 
-function readPersistedTab(): Tab {
+function readPersistedTab(): SettingsTabId {
   try {
     // One-shot deep link from the sidebar section gears (Folders / Tags).
     // Used only as the initial tab and intentionally NOT written to
@@ -338,7 +369,7 @@ function readPersistedTab(): Tab {
     // default that the regular Settings button lands on. Cleared on mount.
     const deepLink = sessionStorage.getItem('settings-deep-link-tab');
     if (deepLink) {
-      return (deepLink in LEGACY_TAB_MAP ? LEGACY_TAB_MAP[deepLink] : deepLink) as Tab;
+      return (deepLink in LEGACY_TAB_MAP ? LEGACY_TAB_MAP[deepLink] : deepLink) as SettingsTabId;
     }
     const saved = localStorage.getItem('settings-active-tab');
     if (!saved) return 'appearance';
@@ -347,7 +378,7 @@ function readPersistedTab(): Tab {
       try { localStorage.setItem('settings-active-tab', migrated); } catch { /* ignore */ }
       return migrated;
     }
-    return saved as Tab;
+    return saved as SettingsTabId;
   } catch {
     return 'appearance';
   }
@@ -364,7 +395,15 @@ export default function SettingsPage() {
   const { quota, isPushConnected } = useEmailStore();
   const { stalwartFeaturesEnabled } = useConfig();
   const { isFeatureEnabled } = usePolicyStore();
-  const [activeTab, setActiveTab] = useState<Tab>(readPersistedTab);
+  const [activeTab, setActiveTab] = useState<SettingsTabId>(readPersistedTab);
+  // Active plugins that expose a `settings-section` slot — each becomes its own
+  // Settings menu entry. Referentially stable per registry mutation, so it is
+  // safe to feed useSyncExternalStore directly.
+  const pluginSettingsOffers = useSyncExternalStore(
+    pluginRegistrySubscribe,
+    () => pluginOffersForSlot('settings-section'),
+    () => pluginOffersForSlot('settings-section'),
+  );
   // Consume the one-shot deep-link key so a section gear only steers this one
   // open, never the persisted default for future Settings-button clicks.
   useEffect(() => {
@@ -372,7 +411,7 @@ export default function SettingsPage() {
   }, []);
   const [mobileShowContent, setMobileShowContent] = useState(false);
   const [searchQuery, setSearchQuery] = useState('');
-  const [pendingHighlight, setPendingHighlight] = useState<{ tab: Tab; label: string; pluginId?: string } | null>(null);
+  const [pendingHighlight, setPendingHighlight] = useState<{ tab: SettingsTabId; label: string; pluginId?: string } | null>(null);
   const isDesktop = useIsDesktop();
 
   const messages = useMessages() as Record<string, unknown>;
@@ -597,6 +636,7 @@ export default function SettingsPage() {
     { id: 'account', label: t('tabs.account'), icon: tabIcons.account, group: 'general' },
     { id: 'language', label: t('tabs.language'), icon: tabIcons.language, group: 'general' },
     { id: 'notifications', label: t('tabs.notifications'), icon: tabIcons.notifications, group: 'general' },
+    { id: 'sharing', label: t('tabs.sharing'), icon: tabIcons.sharing, group: 'general' },
     { id: 'protocol_handlers', label: t('tabs.protocol_handlers'), icon: tabIcons.protocol_handlers, group: 'general' },
 
     // Appearance
@@ -609,10 +649,12 @@ export default function SettingsPage() {
     { id: 'composing', label: t('tabs.composing'), icon: tabIcons.composing, group: 'mail' },
     { id: 'downloads', label: t('tabs.downloads'), icon: tabIcons.downloads, group: 'mail' },
     { id: 'identities', label: t('tabs.identities'), icon: tabIcons.identities, group: 'mail' },
+    { id: 'signatures', label: t('tabs.signatures'), icon: tabIcons.signatures, group: 'mail' },
     ...(supportsVacation ? [{ id: 'vacation' as Tab, label: t('tabs.vacation'), icon: tabIcons.vacation, group: 'mail' as TabGroup }] : []),
     ...(supportsSieve ? [{ id: 'filters' as Tab, label: t('tabs.filters'), icon: tabIcons.filters, group: 'mail' as TabGroup }] : []),
     ...(isFeatureEnabled('templatesEnabled') ? [{ id: 'templates' as Tab, label: t('tabs.templates'), icon: tabIcons.templates, group: 'mail' as TabGroup }] : []),
     { id: 'folders', label: t('tabs.folders'), icon: tabIcons.folders, group: 'mail' },
+    { id: 'import', label: t('tabs.import'), icon: tabIcons.import, group: 'mail' },
     ...(isFeatureEnabled('customKeywordsEnabled') ? [{ id: 'keywords' as Tab, label: t('tabs.keywords'), icon: tabIcons.keywords, group: 'mail' as TabGroup }] : []),
 
     // Privacy & Security
@@ -624,10 +666,19 @@ export default function SettingsPage() {
     ...(isFeatureEnabled('contactsEnabled') ? [{ id: 'contacts' as Tab, label: t('tabs.contacts'), icon: tabIcons.contacts, group: 'apps' as TabGroup }] : []),
     ...(supportsFiles && isFeatureEnabled('filesEnabled') ? [{ id: 'files' as Tab, label: t('tabs.files'), icon: tabIcons.files, group: 'apps' as TabGroup }] : []),
     ...(isFeatureEnabled('sidebarAppsEnabled') ? [{ id: 'sidebar_apps' as Tab, label: t('tabs.sidebar_apps'), icon: tabIcons.sidebar_apps, group: 'apps' as TabGroup }] : []),
+    // Plugin-contributed settings pages: one entry per active plugin that
+    // offers a `settings-section` slot (e.g. S/MIME key & certificate manager).
+    ...pluginSettingsOffers.map((offer): TabDef => ({
+      id: `plugin:${offer.pluginId}` as PluginTabId,
+      label: getActivePlugin(offer.pluginId)?.plugin.name ?? offer.pluginId,
+      icon: Puzzle,
+      group: 'apps',
+    })),
 
     // Advanced
     { id: 'about_data', label: t('tabs.about_data'), icon: tabIcons.about_data, group: 'advanced' },
     ...(isFeatureEnabled('pluginsEnabled') ? [{ id: 'plugins' as Tab, label: 'Plugins', icon: tabIcons.plugins, group: 'advanced' as TabGroup }] : []),
+    ...(isFeatureEnabled('aiAssistantEnabled') ? [{ id: 'ai_assistant' as Tab, label: 'AI Assistant', icon: tabIcons.ai_assistant, group: 'advanced' as TabGroup }] : []),
     ...(isFeatureEnabled('debugModeEnabled') ? [{ id: 'debug' as Tab, label: t('tabs.debug'), icon: tabIcons.debug, group: 'advanced' as TabGroup }] : []),
   ];
 
@@ -644,7 +695,7 @@ export default function SettingsPage() {
       ].filter(Boolean) as Tab[])
     : [];
   const visibleTabs = managedAccountId
-    ? tabs.filter((tab) => scopedTabIds.includes(tab.id))
+    ? tabs.filter((tab) => scopedTabIds.includes(tab.id as Tab))
     : tabs;
 
   // Group tabs by category
@@ -660,12 +711,12 @@ export default function SettingsPage() {
   const matchesQuery = (tab: TabDef) => {
     if (!trimmedQuery) return true;
     if (tab.label.toLowerCase().includes(trimmedQuery)) return true;
-    return tabSearchHaystacks[tab.id]?.includes(trimmedQuery) ?? false;
+    return tabSearchHaystacks[tab.id as Tab]?.includes(trimmedQuery) ?? false;
   };
 
-  const subResultsForTab = (tabId: Tab): SubResult[] => {
+  const subResultsForTab = (tabId: SettingsTabId): SubResult[] => {
     if (!trimmedQuery) return [];
-    const list = tabSubResults[tabId] ?? [];
+    const list = tabSubResults[tabId as Tab] ?? [];
     return list
       .filter((r) =>
         r.label.toLowerCase().includes(trimmedQuery) ||
@@ -684,11 +735,11 @@ export default function SettingsPage() {
   // mode hides it), fall back. In scoped mode fall back to the first scoped tab;
   // otherwise the usual 'appearance' default.
   const isActiveVisible = visibleTabs.some((tab) => tab.id === activeTab);
-  const effectiveActiveTab: Tab = isActiveVisible
+  const effectiveActiveTab: SettingsTabId = isActiveVisible
     ? activeTab
     : (managedAccountId ? (visibleTabs[0]?.id ?? 'appearance') : 'appearance');
 
-  const handleTabSelect = (tabId: Tab) => {
+  const handleTabSelect = (tabId: SettingsTabId) => {
     setActiveTab(tabId);
     try { localStorage.setItem('settings-active-tab', tabId); } catch { /* ignore */ }
     if (!isDesktop) {
@@ -696,7 +747,7 @@ export default function SettingsPage() {
     }
   };
 
-  const handleSubResultSelect = (tabId: Tab, sub: SubResult) => {
+  const handleSubResultSelect = (tabId: SettingsTabId, sub: SubResult) => {
     handleTabSelect(tabId);
     setPendingHighlight({ tab: tabId, label: sub.label, pluginId: sub.pluginId });
   };
@@ -712,11 +763,11 @@ export default function SettingsPage() {
             clearManagedAccount();
             handleTabSelect('account');
           }}
-          className="flex items-center gap-2 w-full mb-4 px-3 py-2 rounded-md border border-border bg-muted/40 hover:bg-muted text-left transition-colors"
+          className="flex items-center gap-2 w-full mb-4 px-3 py-2 rounded-md border border-border bg-muted/40 hover:bg-muted text-start transition-colors"
         >
           <ArrowLeft className="w-4 h-4 text-muted-foreground flex-shrink-0" />
           <span className="text-sm text-muted-foreground">{t('scoped.back')}</span>
-          <span className="ml-auto text-sm font-medium truncate">
+          <span className="ms-auto text-sm font-medium truncate">
             {t('scoped.managing', { name: managedAccount.name })}
           </span>
         </button>
@@ -730,10 +781,13 @@ export default function SettingsPage() {
       {effectiveActiveTab === 'composing' && <ComposingSettings />}
       {effectiveActiveTab === 'downloads' && <DownloadsSettings />}
       {effectiveActiveTab === 'identities' && <IdentitySettings />}
+      {effectiveActiveTab === 'signatures' && <SignatureSettings />}
       {effectiveActiveTab === 'vacation' && <VacationSettings />}
       {effectiveActiveTab === 'filters' && <FilterSettings />}
       {effectiveActiveTab === 'templates' && <TemplateSettings />}
       {effectiveActiveTab === 'folders' && <FolderSettings />}
+      {effectiveActiveTab === 'import' && <ImportSettings />}
+      {effectiveActiveTab === 'sharing' && <SharingSettings />}
       {effectiveActiveTab === 'keywords' && <KeywordSettings />}
       {effectiveActiveTab === 'security' && <AccountSecuritySettings />}
       {effectiveActiveTab === 'content_senders' && <ContentSendersSettings />}
@@ -753,7 +807,15 @@ export default function SettingsPage() {
       {effectiveActiveTab === 'about_data' && <AboutDataSettings />}
       {effectiveActiveTab === 'themes' && <ThemesSettings />}
       {effectiveActiveTab === 'plugins' && <PluginsSettings />}
+      {effectiveActiveTab === 'ai_assistant' && <AiAssistantSettings />}
       {effectiveActiveTab === 'debug' && <DebugSettings />}
+      {effectiveActiveTab.startsWith('plugin:') && (
+        <PluginIframeSlot
+          key={effectiveActiveTab}
+          pluginId={effectiveActiveTab.slice('plugin:'.length)}
+          slot="settings-section"
+        />
+      )}
     </>
   );
 
@@ -820,7 +882,7 @@ export default function SettingsPage() {
                 value={searchQuery}
                 onChange={(e) => setSearchQuery(e.target.value)}
                 placeholder={t('search_placeholder')}
-                className="pl-9 pr-9 h-10"
+                className="ps-9 pe-9 h-10"
                 aria-label={t('search_placeholder')}
               />
               {searchQuery && (
@@ -868,7 +930,7 @@ export default function SettingsPage() {
                         <button
                           key={`${tab.id}:${sub.label}`}
                           onClick={() => handleSubResultSelect(tab.id, sub)}
-                          className="w-full flex items-center pl-12 pr-5 py-2 text-xs text-muted-foreground hover:bg-muted hover:text-foreground transition-colors duration-150 text-left"
+                          className="w-full flex items-center ps-12 pe-5 py-2 text-xs text-muted-foreground hover:bg-muted hover:text-foreground transition-colors duration-150 text-start"
                         >
                           <span className="truncate">{sub.label}</span>
                         </button>
@@ -932,7 +994,7 @@ export default function SettingsPage() {
       <>
       <div
         className={cn(
-          "border-r border-border bg-secondary flex flex-col",
+          "border-e border-border bg-secondary flex flex-col",
           !isResizing && "transition-[width] duration-300"
         )}
         style={{ width: `${settingsSidebarWidth}px` }}
@@ -945,7 +1007,7 @@ export default function SettingsPage() {
               onClick={() => router.push('/')}
               className="w-full justify-start"
             >
-              <ArrowLeft className="w-4 h-4 mr-2" />
+              <ArrowLeft className="w-4 h-4 me-2" />
               {t('back_to_mail')}
             </Button>
           </div>
@@ -960,7 +1022,7 @@ export default function SettingsPage() {
                 value={searchQuery}
                 onChange={(e) => setSearchQuery(e.target.value)}
                 placeholder={t('search_placeholder')}
-                className="pl-8 pr-8 h-9 text-sm"
+                className="ps-8 pe-8 h-9 text-sm"
                 aria-label={t('search_placeholder')}
               />
               {searchQuery && (
@@ -997,7 +1059,7 @@ export default function SettingsPage() {
                       <button
                         onClick={() => handleTabSelect(tab.id)}
                         className={cn(
-                          'w-full text-left px-3 py-2 rounded-md text-sm transition-colors duration-150 flex items-center gap-2.5',
+                          'w-full text-start px-3 py-2 rounded-md text-sm transition-colors duration-150 flex items-center gap-2.5',
                           effectiveActiveTab === tab.id
                             ? 'bg-accent text-accent-foreground font-medium'
                             : 'hover:bg-muted text-foreground'
@@ -1013,7 +1075,7 @@ export default function SettingsPage() {
                         <button
                           key={`${tab.id}:${sub.label}`}
                           onClick={() => handleSubResultSelect(tab.id, sub)}
-                          className="w-full text-left pl-9 pr-3 py-1.5 rounded-md text-xs text-muted-foreground hover:bg-muted hover:text-foreground transition-colors duration-150"
+                          className="w-full text-start ps-9 pe-3 py-1.5 rounded-md text-xs text-muted-foreground hover:bg-muted hover:text-foreground transition-colors duration-150"
                         >
                           <span className="truncate block">{sub.label}</span>
                         </button>

app/(main)/admin/_tabs/_jmap-servers-section.tsx

@@ -220,7 +220,7 @@ export function JmapServersSection({ value, source, onChange, onRevert }: Props)
               Per-server OAuth (optional, overrides global)
             </button>
             {d.oauthExpanded && (
-              <div className="grid grid-cols-1 sm:grid-cols-3 gap-2 pl-4 border-l border-border">
+              <div className="grid grid-cols-1 sm:grid-cols-3 gap-2 ps-4 border-s border-border">
                 <div>
                   <label className="block text-[11px] font-medium text-muted-foreground mb-1">OAuth Client ID</label>
                   <input

app/(main)/admin/_tabs/ai-policy.tsx

@@ -0,0 +1,452 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { Save, Loader2, X, ArrowRight, Plus, Trash2 } from 'lucide-react';
+import type { AiConsoleConfig, AiClass, PublicAiPreset } from '@/lib/ai/types';
+import { DEFAULT_AI_CONSOLE_CONFIG } from '@/lib/ai/types';
+import type { AiEntitlementState, MeteringEntry } from '@/lib/ai/entitlement';
+import { apiFetch } from '@/lib/browser-navigation';
+import { useAdminTabStore } from '@/stores/admin-tab-store';
+
+type EntitlementResponse = AiEntitlementState & { recentUsage: MeteringEntry[] };
+
+const CLASS_INFO: Record<AiClass, { name: string; desc: string }> = {
+  local: { name: 'Local', desc: "Ollama on the user's own machine. Free, unmetered, never reaches this server." },
+  server: { name: 'Server', desc: 'VNC-hosted. Entitlement-enforced, seat + usage tracked below.' },
+  opencode: { name: 'OpenCode', desc: 'A locally-running OpenCode agent server. Holds its own provider credentials; nothing metered here.' },
+  public: { name: 'Public (BYOK)', desc: "User's own API key, direct from their browser to the provider." },
+};
+
+function AllowlistEditor({
+  values, onChange, placeholder,
+}: { values: string[] | null; onChange: (next: string[] | null) => void; placeholder: string }) {
+  const [draft, setDraft] = useState('');
+  const restricted = values !== null;
+
+  return (
+    <>
+      <div className="flex gap-3.5 px-4 pt-2.5 pb-0.5 text-xs">
+        <label className="flex items-center gap-1.5 cursor-pointer text-muted-foreground">
+          <input type="radio" checked={!restricted} onChange={() => onChange(null)} />
+          Unrestricted (current)
+        </label>
+        <label className={`flex items-center gap-1.5 cursor-pointer ${restricted ? 'text-foreground font-medium' : 'text-muted-foreground'}`}>
+          <input type="radio" checked={restricted} onChange={() => onChange(values ?? [])} />
+          Restrict to selected
+        </label>
+      </div>
+      {restricted && (
+        <>
+          <div className="flex flex-wrap gap-1.5 px-4 pt-2.5">
+            {(values ?? []).map((v) => (
+              <span key={v} className="inline-flex items-center gap-1.5 bg-muted border border-border rounded-full py-1 pl-3 pr-1.5 text-xs">
+                {v}
+                <button onClick={() => onChange((values ?? []).filter((x) => x !== v))} className="text-muted-foreground hover:text-foreground">
+                  <X className="w-3 h-3" />
+                </button>
+              </span>
+            ))}
+          </div>
+          <div className="flex gap-2 px-4 py-3">
+            <input
+              value={draft}
+              onChange={(e) => setDraft(e.target.value)}
+              placeholder={placeholder}
+              className="flex-1 h-8 rounded border border-input bg-background px-2.5 text-xs"
+              onKeyDown={(e) => {
+                if (e.key === 'Enter' && draft.trim()) {
+                  onChange([...(values ?? []), draft.trim()]);
+                  setDraft('');
+                }
+              }}
+            />
+            <button
+              onClick={() => { if (draft.trim()) { onChange([...(values ?? []), draft.trim()]); setDraft(''); } }}
+              className="h-8 px-3 rounded border border-border bg-muted text-xs font-medium hover:bg-muted/70"
+            >
+              Add
+            </button>
+          </div>
+        </>
+      )}
+    </>
+  );
+}
+
+function newPresetId(): string {
+  return `preset-${Math.random().toString(36).slice(2, 10)}`;
+}
+
+/**
+ * The Paperclip-style env-var-key picker (decision 2026-08-07): an admin
+ * names a preset and an env var; the actual secret value is never entered
+ * here — it's whatever ops has set in the server's real environment. This is
+ * what lets a user in Settings pick a provider from a dropdown instead of
+ * pasting a key.
+ */
+function PublicPresetsEditor({
+  presets, onChange,
+}: { presets: PublicAiPreset[]; onChange: (next: PublicAiPreset[]) => void }) {
+  const [name, setName] = useState('');
+  const [baseUrl, setBaseUrl] = useState('https://api.deepseek.com');
+  const [model, setModel] = useState('');
+  const [envVar, setEnvVar] = useState('');
+
+  const canAdd = name.trim() && baseUrl.trim() && model.trim() && envVar.trim();
+
+  function addPreset() {
+    if (!canAdd) return;
+    onChange([...presets, { id: newPresetId(), name: name.trim(), baseUrl: baseUrl.trim(), model: model.trim(), apiKeyEnvVar: envVar.trim() }]);
+    setName('');
+    setBaseUrl('https://api.deepseek.com');
+    setModel('');
+    setEnvVar('');
+  }
+
+  return (
+    <>
+      {presets.length > 0 && (
+        <div className="divide-y divide-border">
+          {presets.map((p) => (
+            <div key={p.id} className="px-4 py-2.5 flex items-center justify-between gap-3">
+              <div className="min-w-0">
+                <span className="text-sm font-medium">{p.name}</span>
+                <p className="text-xs text-muted-foreground truncate">
+                  {p.model} · {p.baseUrl} · reads <code className="text-[11px]">{p.apiKeyEnvVar}</code>
+                </p>
+              </div>
+              <button
+                onClick={() => onChange(presets.filter((x) => x.id !== p.id))}
+                className="shrink-0 text-muted-foreground hover:text-destructive"
+                aria-label={`Remove ${p.name}`}
+              >
+                <Trash2 className="w-3.5 h-3.5" />
+              </button>
+            </div>
+          ))}
+        </div>
+      )}
+      <div className="px-4 py-3 flex flex-col gap-2 border-t border-border">
+        <div className="flex gap-2 flex-wrap">
+          <input value={name} onChange={(e) => setName(e.target.value)} placeholder="Name, e.g. DeepSeek (org)"
+            className="flex-1 min-w-[160px] h-8 rounded border border-input bg-background px-2.5 text-xs" />
+          <input value={model} onChange={(e) => setModel(e.target.value)} placeholder="Model, e.g. deepseek-chat"
+            className="flex-1 min-w-[160px] h-8 rounded border border-input bg-background px-2.5 text-xs" />
+        </div>
+        <div className="flex gap-2 flex-wrap">
+          <input value={baseUrl} onChange={(e) => setBaseUrl(e.target.value)} placeholder="API base URL"
+            className="flex-1 min-w-[200px] h-8 rounded border border-input bg-background px-2.5 text-xs" />
+          <input value={envVar} onChange={(e) => setEnvVar(e.target.value)} placeholder="Env var, e.g. DEEPSEEK_API_KEY"
+            className="flex-1 min-w-[200px] h-8 rounded border border-input bg-background px-2.5 text-xs" />
+          <button onClick={addPreset} disabled={!canAdd}
+            className="h-8 px-3 rounded border border-border bg-muted text-xs font-medium hover:bg-muted/70 disabled:opacity-50 inline-flex items-center gap-1.5">
+            <Plus className="w-3 h-3" /> Add
+          </button>
+        </div>
+        <p className="text-xs text-muted-foreground">
+          Only the env var <em>name</em> is stored here — provision the actual key as a real environment variable on
+          the server (k8s secret, .env, Electron packaging). This app never sees or stores the value.
+        </p>
+      </div>
+    </>
+  );
+}
+
+export function AiPolicyTab() {
+  const setActiveTab = useAdminTabStore((s) => s.setActiveTab);
+  const [config, setConfig] = useState<AiConsoleConfig>({ ...DEFAULT_AI_CONSOLE_CONFIG });
+  const [entitlement, setEntitlement] = useState<EntitlementResponse | null>(null);
+  const [serverModels, setServerModels] = useState<string[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [saving, setSaving] = useState(false);
+  const [dirty, setDirty] = useState(false);
+  const [message, setMessage] = useState<{ type: 'success' | 'error'; text: string } | null>(null);
+
+  useEffect(() => { void load(); }, []);
+
+  async function load() {
+    setLoading(true);
+    try {
+      const [policyRes, entitlementRes, modelsRes] = await Promise.all([
+        apiFetch('/api/admin/ai/policy'),
+        apiFetch('/api/admin/ai/entitlement'),
+        apiFetch('/api/ai/server/models').catch(() => null),
+      ]);
+      if (policyRes.ok) setConfig(await policyRes.json());
+      if (entitlementRes.ok) setEntitlement(await entitlementRes.json());
+      if (modelsRes?.ok) {
+        const data = await modelsRes.json();
+        setServerModels(data.models ?? []);
+      }
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  function update(patch: Partial<AiConsoleConfig>) {
+    setConfig((prev) => ({ ...prev, ...patch }));
+    setDirty(true);
+    setMessage(null);
+  }
+
+  function toggleClass(cls: AiClass) {
+    const current = config.classesEnabled[cls] !== false;
+    update({ classesEnabled: { ...config.classesEnabled, [cls]: !current } });
+  }
+
+  async function handleSave() {
+    setSaving(true);
+    setMessage(null);
+    const res = await apiFetch('/api/admin/ai/policy', {
+      method: 'PUT',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify(config),
+    });
+    if (res.ok) {
+      setConfig(await res.json());
+      setDirty(false);
+      setMessage({ type: 'success', text: 'Saved.' });
+    } else {
+      const data = await res.json().catch(() => ({}));
+      setMessage({ type: 'error', text: data.error || 'Failed to save' });
+    }
+    setSaving(false);
+  }
+
+  async function setSeatTotal(total: number) {
+    const res = await apiFetch('/api/admin/ai/entitlement', {
+      method: 'PUT',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ seatsTotal: total }),
+    });
+    if (res.ok) {
+      const data = await res.json();
+      setEntitlement((prev) => (prev ? { ...prev, ...data } : prev));
+    }
+  }
+
+  async function revokeSeat(username: string) {
+    const res = await apiFetch('/api/admin/ai/entitlement', {
+      method: 'PUT',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ revokeUsername: username }),
+    });
+    if (res.ok) {
+      const data = await res.json();
+      setEntitlement((prev) => (prev ? { ...prev, ...data } : prev));
+    }
+  }
+
+  if (loading) {
+    return <div className="flex items-center justify-center py-12 text-muted-foreground text-sm">Loading...</div>;
+  }
+
+  const serverInfraAvailable = serverModels.length > 0 || entitlement !== null;
+  const usageToday = (entitlement?.recentUsage ?? []).filter((u) => u.timestamp.slice(0, 10) === new Date().toISOString().slice(0, 10));
+  const tokensToday = usageToday.reduce((sum, u) => sum + u.promptTokens + u.completionTokens, 0);
+  const avgLatency = usageToday.length ? Math.round(usageToday.reduce((sum, u) => sum + u.latencyMs, 0) / usageToday.length) : 0;
+
+  return (
+    <div className="space-y-6">
+      <div className="flex flex-wrap items-start justify-between gap-3">
+        <div className="min-w-0">
+          <h1 className="text-2xl font-semibold text-foreground">AI</h1>
+          <p className="text-sm text-muted-foreground mt-1">Provider classes, allow-lists, seats, usage, and BYOK consent for the AI Assistant.</p>
+        </div>
+        {dirty && (
+          <button onClick={handleSave} disabled={saving}
+            className="inline-flex items-center gap-2 h-9 px-4 rounded-md bg-primary text-primary-foreground text-sm font-medium hover:bg-primary/90 disabled:opacity-50 transition-all shadow-sm">
+            {saving ? <Loader2 className="w-4 h-4 animate-spin" /> : <Save className="w-4 h-4" />}
+            Save changes
+          </button>
+        )}
+      </div>
+
+      {message && (
+        <div className={`text-sm rounded-md px-3 py-2 ${message.type === 'success' ? 'bg-emerald-50 text-emerald-700 dark:bg-emerald-950/30 dark:text-emerald-300' : 'bg-destructive/10 text-destructive'}`}>
+          {message.text}
+        </div>
+      )}
+
+      <button onClick={() => setActiveTab('policy')}
+        className="w-full flex items-center gap-2 text-xs text-muted-foreground bg-muted border border-border rounded-md px-3.5 py-2.5 hover:bg-muted/70 transition-colors text-left">
+        <span>The master AI Assistant on/off switch lives in</span>
+        <span className="text-primary font-medium inline-flex items-center gap-1">Policy → Feature Gates <ArrowRight className="w-3 h-3" /></span>
+      </button>
+
+      <div className="border border-border rounded-lg">
+        <div className="px-4 py-3 border-b border-border bg-muted/30">
+          <h2 className="text-sm font-medium text-foreground">Provider classes</h2>
+          <p className="text-xs text-muted-foreground mt-0.5">Which of the three AI classes users can reach at all.</p>
+        </div>
+        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-3 p-4">
+          {(['local', 'server', 'opencode', 'public'] as AiClass[]).map((cls) => {
+            const enabled = config.classesEnabled[cls] !== false;
+            const disabledByInfra = cls === 'server' && !serverInfraAvailable;
+            return (
+              <div key={cls} className={`border border-border rounded-md p-3.5 ${disabledByInfra ? 'opacity-55' : ''}`}>
+                <div className="flex items-center justify-between mb-1.5">
+                  <span className="text-sm font-semibold">{CLASS_INFO[cls].name}</span>
+                  <button
+                    onClick={() => !disabledByInfra && toggleClass(cls)}
+                    disabled={disabledByInfra}
+                    className={`shrink-0 relative inline-flex h-5 w-9 items-center rounded-full transition-colors ${enabled && !disabledByInfra ? 'bg-primary' : 'bg-muted-foreground/25 dark:bg-muted-foreground/50'} ${disabledByInfra ? 'cursor-not-allowed' : ''}`}>
+                    <span className={`inline-block h-3.5 w-3.5 transform rounded-full bg-background shadow transition-transform ${enabled && !disabledByInfra ? 'translate-x-[18px]' : 'translate-x-[3px]'}`} />
+                  </button>
+                </div>
+                <p className="text-xs text-muted-foreground">{CLASS_INFO[cls].desc}</p>
+                {disabledByInfra && <p className="text-xs text-amber-600 dark:text-amber-400 mt-1.5">Not configured (AI_SERVER_BASE_URL unset)</p>}
+              </div>
+            );
+          })}
+        </div>
+      </div>
+
+      <div className="border border-border rounded-lg">
+        <div className="px-4 py-3 border-b border-border bg-muted/30">
+          <h2 className="text-sm font-medium text-foreground">Server — model allow-list</h2>
+          <p className="text-xs text-muted-foreground mt-0.5">Restrict which Ollama models users may select for the Server class. Also enforced on every chat call, not just the picker.</p>
+        </div>
+        <AllowlistEditor
+          values={config.serverModelAllowlist}
+          onChange={(v) => update({ serverModelAllowlist: v })}
+          placeholder={serverModels.length ? `e.g. ${serverModels[0]}` : 'e.g. qwen2.5:32b'}
+        />
+      </div>
+
+      <div className="border border-border rounded-lg">
+        <div className="px-4 py-3 border-b border-border bg-muted/30">
+          <h2 className="text-sm font-medium text-foreground">Public (BYOK) — provider allow-list</h2>
+          <p className="text-xs text-muted-foreground mt-0.5">Restrict which base URLs users may point a bring-your-own-key profile at. Checked client-side at save time — advisory, not a network boundary.</p>
+        </div>
+        <AllowlistEditor
+          values={config.publicProviderAllowlist}
+          onChange={(v) => update({ publicProviderAllowlist: v })}
+          placeholder="e.g. https://api.openai.com"
+        />
+      </div>
+
+      <div className="border border-border rounded-lg">
+        <div className="px-4 py-3 border-b border-border bg-muted/30">
+          <h2 className="text-sm font-medium text-foreground">Public — org-managed presets</h2>
+          <p className="text-xs text-muted-foreground mt-0.5">
+            Paperclip-style: publish a provider by name instead of making every user paste their own key. Users pick
+            one of these in Settings with no key field at all — the server resolves the named env var at request time.
+          </p>
+        </div>
+        <PublicPresetsEditor presets={config.publicPresets} onChange={(v) => update({ publicPresets: v })} />
+      </div>
+
+      <div className="border border-border rounded-lg">
+        <div className="px-4 py-3 border-b border-border bg-muted/30">
+          <h2 className="text-sm font-medium text-foreground">Entitlement &amp; seats</h2>
+          <p className="text-xs text-muted-foreground mt-0.5">Server class only. First successful use auto-assigns a seat.</p>
+        </div>
+        <div className="px-4 py-3 flex items-center gap-3 border-b border-border">
+          <span className="text-sm flex-1">Seats licensed</span>
+          <input
+            type="number" min={0}
+            value={entitlement?.seatsTotal ?? 0}
+            onChange={(e) => setSeatTotal(Math.max(0, Number.parseInt(e.target.value, 10) || 0))}
+            className="w-20 h-8 rounded border border-input bg-background px-2 text-sm text-center"
+          />
+          <span className="text-xs text-muted-foreground">{entitlement?.assignedTo.length ?? 0} of {entitlement?.seatsTotal ?? 0} assigned</span>
+        </div>
+        <div className="divide-y divide-border">
+          {(entitlement?.assignedTo ?? []).length === 0 && (
+            <div className="px-4 py-3 text-xs text-muted-foreground">No seats assigned yet.</div>
+          )}
+          {(entitlement?.assignedTo ?? []).map((username) => (
+            <div key={username} className="px-4 py-2.5 flex items-center justify-between gap-3">
+              <span className="text-sm">{username}</span>
+              <button onClick={() => revokeSeat(username)}
+                className="text-xs font-medium text-destructive border border-border rounded px-2.5 py-1 hover:bg-destructive/10">
+                Revoke
+              </button>
+            </div>
+          ))}
+        </div>
+      </div>
+
+      <div className="border border-border rounded-lg">
+        <div className="px-4 py-3 border-b border-border bg-muted/30">
+          <h2 className="text-sm font-medium text-foreground">Usage</h2>
+          <p className="text-xs text-muted-foreground mt-0.5">Last 200 metered calls. Read-only.</p>
+        </div>
+        <div className="flex gap-6 px-4 py-3 border-b border-border flex-wrap">
+          <div><span className="text-lg font-semibold tabular-nums block">{usageToday.length}</span><span className="text-[11px] uppercase tracking-wide text-muted-foreground">Calls today</span></div>
+          <div><span className="text-lg font-semibold tabular-nums block">{tokensToday.toLocaleString()}</span><span className="text-[11px] uppercase tracking-wide text-muted-foreground">Tokens today</span></div>
+          <div><span className="text-lg font-semibold tabular-nums block">{avgLatency}ms</span><span className="text-[11px] uppercase tracking-wide text-muted-foreground">Avg latency</span></div>
+        </div>
+        <div className="overflow-x-auto">
+          <table className="w-full text-xs">
+            <thead>
+              <tr className="text-muted-foreground uppercase text-[10px] tracking-wide">
+                <th className="text-left px-4 py-2 font-medium">Time</th>
+                <th className="text-left px-4 py-2 font-medium">User</th>
+                <th className="text-left px-4 py-2 font-medium">Model</th>
+                <th className="text-left px-4 py-2 font-medium">Prompt tok</th>
+                <th className="text-left px-4 py-2 font-medium">Compl. tok</th>
+                <th className="text-left px-4 py-2 font-medium">Latency</th>
+              </tr>
+            </thead>
+            <tbody className="divide-y divide-border">
+              {(entitlement?.recentUsage ?? []).length === 0 && (
+                <tr><td colSpan={6} className="px-4 py-3 text-muted-foreground">No usage recorded yet.</td></tr>
+              )}
+              {[...(entitlement?.recentUsage ?? [])].reverse().slice(0, 50).map((u, i) => (
+                <tr key={i} className="tabular-nums">
+                  <td className="px-4 py-2">{new Date(u.timestamp).toLocaleTimeString()}</td>
+                  <td className="px-4 py-2">{u.username}</td>
+                  <td className="px-4 py-2">{u.model}</td>
+                  <td className="px-4 py-2">{u.promptTokens}</td>
+                  <td className="px-4 py-2">{u.completionTokens}</td>
+                  <td className="px-4 py-2">{u.latencyMs}ms</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      </div>
+
+      <div className="border border-border rounded-lg">
+        <div className="px-4 py-3 border-b border-border bg-muted/30">
+          <h2 className="text-sm font-medium text-foreground">Retrieval &amp; consent</h2>
+          <p className="text-xs text-muted-foreground mt-0.5">Mail-content augmentation and the BYOK consent prompt.</p>
+        </div>
+        <div className="px-4 py-3 flex items-center justify-between gap-4 border-b border-border">
+          <div>
+            <div className="text-sm">Retrieval leg</div>
+            <p className="text-xs text-muted-foreground mt-0.5">Send recent mail content to the Server class's embedding model to answer questions grounded in the user's own mail.</p>
+          </div>
+          <button onClick={() => update({ retrievalEnabled: !config.retrievalEnabled })}
+            className={`shrink-0 relative inline-flex h-5 w-9 items-center rounded-full transition-colors ${config.retrievalEnabled ? 'bg-primary' : 'bg-muted-foreground/25 dark:bg-muted-foreground/50'}`}>
+            <span className={`inline-block h-3.5 w-3.5 transform rounded-full bg-background shadow transition-transform ${config.retrievalEnabled ? 'translate-x-[18px]' : 'translate-x-[3px]'}`} />
+          </button>
+        </div>
+        <div className="px-4 py-3.5 space-y-2">
+          <label className="text-sm block">Consent text (shown once per version, before first BYOK/Public use)</label>
+          <textarea
+            value={config.consent?.text ?? ''}
+            onChange={(e) => update({ consent: { version: config.consent?.version ?? '1', text: e.target.value } })}
+            className="w-full min-h-20 rounded border border-input bg-background px-2.5 py-2 text-xs"
+            placeholder="Using a bring-your-own-key provider sends your question — and, if retrieval is on, related excerpts from your mail — to that provider's servers, outside this organisation. Continue?"
+          />
+        </div>
+        <div className="px-4 py-3 flex items-center gap-2.5 flex-wrap">
+          <span className="text-sm">Version</span>
+          <input
+            value={config.consent?.version ?? ''}
+            onChange={(e) => update({ consent: { version: e.target.value, text: config.consent?.text ?? '' } })}
+            className="w-20 h-8 rounded border border-input bg-background px-2 text-xs text-center"
+          />
+          <button
+            onClick={() => update({ consent: { version: String(Number.parseInt(config.consent?.version || '0', 10) + 1), text: config.consent?.text ?? '' } })}
+            className="h-8 px-3 rounded border border-border bg-muted text-xs font-medium hover:bg-muted/70">
+            Bump version (re-prompt everyone)
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}

app/(main)/admin/_tabs/logs.tsx

@@ -96,10 +96,10 @@ export function LogsTab() {
         <table className="w-full text-sm">
           <thead>
             <tr className="border-b border-border bg-muted/30">
-              <th className="text-left px-4 py-2 font-medium text-muted-foreground whitespace-nowrap">Time</th>
-              <th className="text-left px-4 py-2 font-medium text-muted-foreground whitespace-nowrap">Action</th>
-              <th className="text-left px-4 py-2 font-medium text-muted-foreground">Details</th>
-              <th className="text-left px-4 py-2 font-medium text-muted-foreground whitespace-nowrap">IP</th>
+              <th className="text-start px-4 py-2 font-medium text-muted-foreground whitespace-nowrap">Time</th>
+              <th className="text-start px-4 py-2 font-medium text-muted-foreground whitespace-nowrap">Action</th>
+              <th className="text-start px-4 py-2 font-medium text-muted-foreground">Details</th>
+              <th className="text-start px-4 py-2 font-medium text-muted-foreground whitespace-nowrap">IP</th>
             </tr>
           </thead>
           <tbody className="divide-y divide-border">

app/(main)/admin/_tabs/marketplace.tsx

@@ -171,7 +171,7 @@ export function MarketplaceTab() {
             placeholder="Search extensions..."
             value={searchInput}
             onChange={(e) => setSearchInput(e.target.value)}
-            className="w-full h-9 pl-9 pr-3 rounded-md border border-input bg-background text-sm text-foreground placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring/20 focus:border-ring"
+            className="w-full h-9 ps-9 pe-3 rounded-md border border-input bg-background text-sm text-foreground placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring/20 focus:border-ring"
           />
         </div>
         <div className="flex items-center gap-1 rounded-md border border-input bg-background p-0.5 self-start sm:self-auto">
@@ -210,7 +210,7 @@ export function MarketplaceTab() {
       {loading && !error && (
         <div className="flex items-center justify-center py-12">
           <Loader2 className="w-5 h-5 animate-spin text-muted-foreground" />
-          <span className="ml-2 text-sm text-muted-foreground">Searching extensions...</span>
+          <span className="ms-2 text-sm text-muted-foreground">Searching extensions...</span>
         </div>
       )}
 

app/(main)/admin/_tabs/plugin-config-panel.tsx

@@ -155,7 +155,7 @@ export function PluginConfigPanel({ pluginId, onBack }: Props) {
   if (loading) {
     return (
       <div className="flex items-center justify-center py-12 text-muted-foreground text-sm">
-        <Loader2 className="w-4 h-4 animate-spin mr-2" />
+        <Loader2 className="w-4 h-4 animate-spin me-2" />
         Loading...
       </div>
     );
@@ -217,7 +217,7 @@ export function PluginConfigPanel({ pluginId, onBack }: Props) {
               <div key={key}>
                 <label className="text-sm font-medium text-foreground block mb-1">
                   {field.label}
-                  {field.required && <span className="text-destructive ml-0.5">*</span>}
+                  {field.required && <span className="text-destructive ms-0.5">*</span>}
                 </label>
                 {field.description && (
                   <p className="text-xs text-muted-foreground mb-1.5">{field.description}</p>
@@ -250,7 +250,7 @@ export function PluginConfigPanel({ pluginId, onBack }: Props) {
                       value={formValues[key] ?? ''}
                       onChange={(e) => setFormValues(prev => ({ ...prev, [key]: e.target.value }))}
                       placeholder={config[key] ? '••••••••  (unchanged)' : (field.placeholder || '')}
-                      className="w-full h-9 px-3 pr-10 rounded-md border border-input bg-background text-sm focus:outline-none focus:ring-2 focus:ring-ring font-mono"
+                      className="w-full h-9 px-3 pe-10 rounded-md border border-input bg-background text-sm focus:outline-none focus:ring-2 focus:ring-ring font-mono"
                     />
                     <button
                       type="button"

app/(main)/admin/_tabs/plugins.tsx

@@ -26,6 +26,10 @@ export function PluginsTab() {
   const [loading, setLoading] = useState(true);
   const [uploading, setUploading] = useState(false);
   const [message, setMessage] = useState<{ type: 'success' | 'error'; text: string } | null>(null);
+  // Bundle held back by the pattern scanner, awaiting an explicit admin decision.
+  const [pendingScan, setPendingScan] = useState<
+    { file: File; findings: Array<{ file: string; patterns: string[] }> } | null
+  >(null);
   const fileInputRef = useRef<HTMLInputElement>(null);
   const [policy, setPolicy] = useState<SettingsPolicy>({ ...DEFAULT_POLICY });
   const [policyDirty, setPolicyDirty] = useState(false);
@@ -104,15 +108,17 @@ export function PluginsTab() {
     }
   }
 
-  async function handleUpload(e: React.ChangeEvent<HTMLInputElement>) {
-    const file = e.target.files?.[0];
-    if (!file) return;
-
+  // Upload a bundle. The scanner may refuse it for containing patterns that are
+  // expected in a vendored crypto library (openpgp.js, pkijs); in that case the
+  // server returns `canOverride` and we hold the file so the admin can review
+  // the findings and decide. `override` re-posts the same file with consent.
+  async function uploadPlugin(file: File, override: boolean) {
     setUploading(true);
     setMessage(null);
 
     const formData = new FormData();
     formData.append('file', file);
+    if (override) formData.append('overrideWarnings', 'true');
 
     try {
       const res = await apiFetch('/api/admin/plugins', {
@@ -122,13 +128,22 @@ export function PluginsTab() {
 
       const data = await res.json();
       if (res.ok) {
-        const warnings = data.warnings?.length ? ` (${data.warnings.length} warning(s))` : '';
-        setMessage({ type: 'success', text: `Plugin "${data.plugin.name}" installed${warnings}` });
+        setPendingScan(null);
+        const accepted = data.findings?.length
+          ? ` — ${data.findings.length} scanner finding(s) accepted and logged`
+          : '';
+        setMessage({ type: 'success', text: `Plugin "${data.plugin.name}" installed${accepted}` });
         await fetchPlugins();
+      } else if (data.canOverride && Array.isArray(data.findings) && !override) {
+        // Hold the file rather than the error: the admin needs to see WHAT
+        // tripped, in WHICH file, before deciding.
+        setPendingScan({ file, findings: data.findings });
       } else {
+        setPendingScan(null);
         setMessage({ type: 'error', text: data.error || 'Upload failed' });
       }
     } catch {
+      setPendingScan(null);
       setMessage({ type: 'error', text: 'Upload failed' });
     } finally {
       setUploading(false);
@@ -136,6 +151,13 @@ export function PluginsTab() {
     }
   }
 
+  async function handleUpload(e: React.ChangeEvent<HTMLInputElement>) {
+    const file = e.target.files?.[0];
+    if (!file) return;
+    setPendingScan(null);
+    await uploadPlugin(file, false);
+  }
+
   async function togglePlugin(id: string, enabled: boolean) {
     setMessage(null);
     const res = await apiFetch('/api/admin/plugins', {
@@ -302,6 +324,51 @@ export function PluginsTab() {
         </div>
       )}
 
+      {pendingScan && (
+        <div className="border border-warning/40 bg-warning/5 rounded-lg p-4 space-y-3">
+          <div className="flex items-start gap-2">
+            <AlertTriangle className="w-4 h-4 text-warning mt-0.5 flex-shrink-0" />
+            <div className="space-y-1">
+              <p className="text-sm font-medium text-foreground">
+                Scanner flagged <span className="font-mono">{pendingScan.file.name}</span>
+              </p>
+              <p className="text-xs text-muted-foreground">
+                These patterns can indicate malicious code, but they also appear in legitimate
+                minified crypto libraries such as openpgp.js and pkijs. Review the findings before
+                proceeding — installing anyway is recorded in the audit log.
+              </p>
+            </div>
+          </div>
+
+          <ul className="space-y-1">
+            {pendingScan.findings.map(f => (
+              <li key={f.file} className="text-xs font-mono bg-background/60 border border-border rounded px-2 py-1">
+                <span className="text-foreground">{f.file}</span>
+                <span className="text-muted-foreground"> — {f.patterns.join(', ')}</span>
+              </li>
+            ))}
+          </ul>
+
+          <div className="flex items-center gap-2">
+            <button
+              onClick={() => uploadPlugin(pendingScan.file, true)}
+              disabled={uploading}
+              className="inline-flex items-center gap-2 h-8 px-3 rounded-md bg-destructive text-destructive-foreground text-xs font-medium hover:bg-destructive/90 disabled:opacity-50 transition-all"
+            >
+              {uploading ? <Loader2 className="w-3.5 h-3.5 animate-spin" /> : <AlertTriangle className="w-3.5 h-3.5" />}
+              Install anyway
+            </button>
+            <button
+              onClick={() => { setPendingScan(null); setMessage(null); }}
+              disabled={uploading}
+              className="inline-flex items-center h-8 px-3 rounded-md border border-border text-xs font-medium text-foreground hover:bg-muted disabled:opacity-50 transition-all"
+            >
+              Cancel
+            </button>
+          </div>
+        </div>
+      )}
+
       <div className="border border-border rounded-lg">
         <div className="px-4 py-3 border-b border-border bg-muted/30">
           <div className="flex items-center gap-2">

app/(main)/admin/_tabs/policy.tsx

@@ -6,7 +6,9 @@ import type { SettingsPolicy, FeatureGates } from '@/lib/admin/types';
 import { DEFAULT_FEATURE_GATES, DEFAULT_POLICY } from '@/lib/admin/types';
 import { apiFetch } from '@/lib/browser-navigation';
 
-const EXCLUDED_FEATURE_GATES: (keyof FeatureGates)[] = ['pluginsEnabled', 'pluginsUploadEnabled', 'themesEnabled', 'userThemesEnabled'];
+// `allMailViewEnabled` is deprecated (folded into `crossAllViewEnabled`, normalized
+// forward on policy load), so it is hidden from the admin UI.
+const EXCLUDED_FEATURE_GATES: (keyof FeatureGates)[] = ['pluginsEnabled', 'pluginsUploadEnabled', 'themesEnabled', 'userThemesEnabled', 'allMailViewEnabled'];
 
 const FEATURE_GATE_LABELS: Partial<Record<keyof FeatureGates, { label: string; description: string }>> = {
   sidebarAppsEnabled: { label: 'Sidebar Apps', description: 'Allow custom web apps in navigation rail' },
@@ -22,10 +24,11 @@ const FEATURE_GATE_LABELS: Partial<Record<keyof FeatureGates, { label: string; d
   folderIconsEnabled: { label: 'Folder Icons', description: 'Allow custom folder icon picker' },
   hoverActionsConfigEnabled: { label: 'Hover Actions Config', description: 'Allow users to customize email hover actions' },
   filesEnabled: { label: 'Files (WebDAV)', description: 'Enable file storage via WebDAV. WARNING: Large uploads can cause Stalwart/RocksDB instability. Not recommended for production.' },
-  allMailViewEnabled: { label: 'All Mail View', description: 'Show a virtual "All Mail" folder that merges messages from across an account’s folders into one list. Users choose which folders are included. Requires the per-user toggle in Settings → Appearance.' },
-  crossUnreadViewEnabled: { label: 'All Accounts: Unread', description: 'Allow an "All unread" entry in the All accounts section that lists unread mail across every account (incl. shared folders), spanning all folders except junk, sent, archive, trash and drafts. Requires the matching per-user toggle in Settings → Appearance.' },
-  crossStarredViewEnabled: { label: 'All Accounts: Starred', description: 'Allow an "All starred" entry in the All accounts section that lists flagged/starred mail across every account (incl. shared folders), spanning all folders except junk, sent, archive, trash and drafts. Requires the matching per-user toggle in Settings → Appearance.' },
-  crossAllViewEnabled: { label: 'All Accounts: All Mail', description: 'Allow an "All mail" entry in the All accounts section that lists all mail across every account (incl. shared folders), spanning all folders except junk, sent, archive, trash and drafts. Requires the matching per-user toggle in Settings → Appearance.' },
+  crossUnreadViewEnabled: { label: 'Unified Mailbox: Unread', description: 'Allow an "Unread" entry in the Unified Mailbox section that lists unread mail across the account and its shared folders (or every account when the cross-account sub-option is on). Honors the user\'s folder selection. Requires the matching per-user toggle in Settings → Appearance.' },
+  crossStarredViewEnabled: { label: 'Unified Mailbox: Starred', description: 'Allow a "Starred" entry in the Unified Mailbox section that lists flagged/starred mail across the account and its shared folders (or every account when the cross-account sub-option is on). Honors the user\'s folder selection. Requires the matching per-user toggle in Settings → Appearance.' },
+  crossAllViewEnabled: { label: 'Unified Mailbox: All Mail', description: 'Allow an "All mail" entry in the Unified Mailbox section that lists all mail across the account and its shared folders (or every account when the cross-account sub-option is on). Honors the user\'s folder selection. Requires the matching per-user toggle in Settings → Appearance.' },
+  unifiedCrossAccountEnabled: { label: 'Unified Mailbox: Cross-account', description: 'Allow users to expand the Unified Mailbox beyond the active account boundary so its lists merge across every logged-in account. When off, the Unified Mailbox stays within the active account and its shared folders.' },
+  aiAssistantEnabled: { label: 'AI Assistant (preview)', description: 'Show the AI Assistant settings tab. Local (Ollama on the user\'s own machine or this desktop app) is free and unmetered; public (bring-your-own-key) is available too but not yet monitored or metered — see docs/AI-ASSISTANT-CONCEPT.md.' },
 };
 
 const RESTRICTABLE_SETTINGS = [

app/(main)/admin/_tabs/settings.tsx

@@ -117,7 +117,7 @@ export function SettingsTab() {
         <TextSetting label="JMAP Server URL" configKey="jmapServerUrl" value={currentValue('jmapServerUrl') as string} source={config.jmapServerUrl?.source} onChange={handleChange} onRevert={handleRevert} placeholder="https://mail.example.com" />
         <ToggleSetting label="Allow Custom JMAP Endpoint" description="Show a JMAP server URL field on the login form, allowing users to connect to any JMAP server" configKey="allowCustomJmapEndpoint" value={currentValue('allowCustomJmapEndpoint') as boolean} source={config.allowCustomJmapEndpoint?.source} onChange={handleChange} onRevert={handleRevert} />
         {!!currentValue('allowCustomJmapEndpoint') && (
-          <div className="px-4 py-2.5 bg-amber-50 dark:bg-amber-950/30 border-l-2 border-amber-400 dark:border-amber-600">
+          <div className="px-4 py-2.5 bg-amber-50 dark:bg-amber-950/30 border-s-2 border-amber-400 dark:border-amber-600">
             <p className="text-xs text-amber-800 dark:text-amber-300 leading-relaxed">
               <strong>CORS warning:</strong> External JMAP servers must include this domain in their CORS <code className="text-[11px] bg-amber-100 dark:bg-amber-900/50 px-1 py-0.5 rounded">Access-Control-Allow-Origin</code> header, or requests from the browser will be blocked.
             </p>
@@ -145,7 +145,7 @@ export function SettingsTab() {
           onRevert={() => handleRevert('jmapServers')}
         />
         {Array.isArray(currentValue('jmapServers')) && (currentValue('jmapServers') as JmapServerEntry[]).length > 0 && (
-          <div className="px-4 py-2.5 bg-amber-50 dark:bg-amber-950/30 border-l-2 border-amber-400 dark:border-amber-600">
+          <div className="px-4 py-2.5 bg-amber-50 dark:bg-amber-950/30 border-s-2 border-amber-400 dark:border-amber-600">
             <p className="text-xs text-amber-800 dark:text-amber-300 leading-relaxed">
               <strong>CORS warning:</strong> Each JMAP server must allow this webmail's origin in its <code className="text-[11px] bg-amber-100 dark:bg-amber-900/50 px-1 py-0.5 rounded">Access-Control-Allow-Origin</code> header, or browser requests will be blocked.
             </p>

app/(main)/admin/_tabs/vncdirectory.tsx

@@ -0,0 +1,620 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { Save, Loader2, Plus, X } from 'lucide-react';
+import { apiFetch } from '@/lib/browser-navigation';
+
+interface VncDirectoryFormData {
+  enabled: boolean;
+  apiUrl: string;
+  apiKey: string;
+  samlEnabled: boolean;
+  samlIdpUrl: string;
+  samlSpCert: string;
+  samlIssuer: string;
+  ldapEnabled: boolean;
+  ldapUri: string;
+  ldapBindDn: string;
+  ldapBindPassword: string;
+  ldapSearchBase: string;
+  ldapType: 'openldap' | 'ms-ad';
+  tfaEnabled: boolean;
+  oidcEnabled: boolean;
+  oidcClientId: string;
+  oidcDiscoveryUrl: string;
+  sessionTtl: number;
+  federatedApps: Record<string, string>;
+}
+
+const BLANK_FORM: VncDirectoryFormData = {
+  enabled: false,
+  apiUrl: '',
+  apiKey: '',
+  samlEnabled: false,
+  samlIdpUrl: '',
+  samlSpCert: '',
+  samlIssuer: '',
+  ldapEnabled: false,
+  ldapUri: '',
+  ldapBindDn: '',
+  ldapBindPassword: '',
+  ldapSearchBase: '',
+  ldapType: 'openldap',
+  tfaEnabled: false,
+  oidcEnabled: false,
+  oidcClientId: '',
+  oidcDiscoveryUrl: '',
+  sessionTtl: 28800,
+  federatedApps: {},
+};
+
+export function VncDirectoryTab() {
+  const [config, setConfig] = useState<VncDirectoryFormData>({ ...BLANK_FORM });
+  const [loading, setLoading] = useState(true);
+  const [saving, setSaving] = useState(false);
+  const [message, setMessage] = useState<{ type: 'success' | 'error'; text: string } | null>(null);
+  const [dirty, setDirty] = useState(false);
+
+  useEffect(() => { fetchConfig(); }, []);
+
+  async function fetchConfig() {
+    setLoading(true);
+    try {
+      const res = await apiFetch('/api/admin/vncdirectory');
+      if (res.ok) {
+        const data = await res.json();
+        setConfig(data);
+      }
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  function updateField<K extends keyof VncDirectoryFormData>(key: K, value: VncDirectoryFormData[K]) {
+    setConfig((prev) => ({ ...prev, [key]: value }));
+    setDirty(true);
+    setMessage(null);
+  }
+
+  function toggleBool(key: keyof VncDirectoryFormData) {
+    setConfig((prev) => ({ ...prev, [key]: !prev[key] }));
+    setDirty(true);
+    setMessage(null);
+  }
+
+  function setFederatedApp(name: string, url: string) {
+    setConfig((prev) => ({
+      ...prev,
+      federatedApps: { ...prev.federatedApps, [name]: url },
+    }));
+    setDirty(true);
+    setMessage(null);
+  }
+
+  function removeFederatedApp(name: string) {
+    setConfig((prev) => {
+      const next = { ...prev.federatedApps };
+      delete next[name];
+      return { ...prev, federatedApps: next };
+    });
+    setDirty(true);
+    setMessage(null);
+  }
+
+  async function handleSave() {
+    setSaving(true);
+    setMessage(null);
+
+    const res = await apiFetch('/api/admin/vncdirectory', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify(config),
+    });
+
+    if (res.ok) {
+      setMessage({ type: 'success', text: 'VNCdirectory configuration saved.' });
+      setDirty(false);
+      await fetchConfig();
+    } else {
+      const data = await res.json();
+      setMessage({ type: 'error', text: data.error || 'Failed to save' });
+    }
+    setSaving(false);
+  }
+
+  if (loading) {
+    return (
+      <div className="flex items-center justify-center py-12 text-muted-foreground text-sm">
+        Loading...
+      </div>
+    );
+  }
+
+  const federatedAppsList = Object.entries(config.federatedApps);
+
+  return (
+    <div className="space-y-6">
+      <div className="flex flex-wrap items-start justify-between gap-3">
+        <div className="min-w-0">
+          <h1 className="text-2xl font-semibold text-foreground">VNCdirectory</h1>
+          <p className="text-sm text-muted-foreground mt-1">
+            Centralized identity and directory integration (SAML, LDAP, 2FA)
+          </p>
+        </div>
+        {dirty && (
+          <button
+            onClick={handleSave}
+            disabled={saving}
+            className="inline-flex items-center gap-2 h-9 px-4 rounded-md bg-primary text-primary-foreground text-sm font-medium hover:bg-primary/90 disabled:opacity-50 transition-all shadow-sm"
+          >
+            {saving ? <Loader2 className="w-4 h-4 animate-spin" /> : <Save className="w-4 h-4" />}
+            Save configuration
+          </button>
+        )}
+      </div>
+
+      {message && (
+        <div
+          className={`text-sm rounded-md px-3 py-2 ${
+            message.type === 'success'
+              ? 'bg-emerald-50 text-emerald-700 dark:bg-emerald-950/30 dark:text-emerald-300'
+              : 'bg-destructive/10 text-destructive'
+          }`}
+        >
+          {message.text}
+        </div>
+      )}
+
+      <Section title="Enable VNCdirectory Integration">
+        <div className="px-4 py-3 flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between sm:gap-4">
+          <div className="min-w-0">
+            <span className="text-sm text-foreground">Enabled</span>
+            <p className="text-xs text-muted-foreground mt-0.5">
+              Turn on VNCdirectory integration for identity management, SSO, and directory services
+            </p>
+          </div>
+          <button
+            onClick={() => toggleBool('enabled')}
+            className={`shrink-0 relative inline-flex h-5 w-9 items-center rounded-full transition-colors ${
+              config.enabled
+                ? 'bg-primary'
+                : 'bg-muted-foreground/25 dark:bg-muted-foreground/50'
+            }`}
+          >
+            <span
+              className={`inline-block h-3.5 w-3.5 transform rounded-full bg-background shadow transition-transform ${
+                config.enabled ? 'translate-x-[18px]' : 'translate-x-[3px]'
+              }`}
+            />
+          </button>
+        </div>
+      </Section>
+
+      {config.enabled && (
+        <>
+          <Section title="Connection">
+            <div className="divide-y divide-border">
+              <TextRow
+                label="VNCdirectory URL"
+                value={config.apiUrl}
+                onChange={(v) => updateField('apiUrl', v)}
+                placeholder="https://vncdirectory.example.com"
+              />
+              <PasswordRow
+                label="API Key"
+                value={config.apiKey}
+                onChange={(v) => updateField('apiKey', v)}
+                placeholder="Enter API key"
+              />
+            </div>
+          </Section>
+
+          <Section title="SAML / Identity Provider">
+            <div className="divide-y divide-border">
+              <ToggleRow
+                label="SAML Enabled"
+                description="Enable SAML single sign-on via VNCdirectory"
+                value={config.samlEnabled}
+                onChange={() => toggleBool('samlEnabled')}
+              />
+              {config.samlEnabled && (
+                <>
+                  <TextRow
+                    label="Identity Provider URL"
+                    value={config.samlIdpUrl}
+                    onChange={(v) => updateField('samlIdpUrl', v)}
+                    placeholder="https://idp.example.com/saml2/idp"
+                  />
+                  <TextRow
+                    label="Issuer Name (Entity ID)"
+                    value={config.samlIssuer}
+                    onChange={(v) => updateField('samlIssuer', v)}
+                    placeholder="urn:example:vncmail"
+                  />
+                  <div className="px-4 py-3 flex flex-col gap-2">
+                    <label className="text-sm text-foreground">
+                      Service Provider Certificate (X.509)
+                    </label>
+                    <textarea
+                      value={config.samlSpCert}
+                      onChange={(e) => updateField('samlSpCert', e.target.value)}
+                      placeholder="-----BEGIN CERTIFICATE-----&#10;...&#10;-----END CERTIFICATE-----"
+                      rows={4}
+                      className="w-full rounded-md border border-input bg-background px-2.5 py-1.5 text-sm font-mono text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring resize-vertical"
+                    />
+                  </div>
+                </>
+              )}
+            </div>
+          </Section>
+
+          <Section title="LDAP Directory">
+            <div className="divide-y divide-border">
+              <ToggleRow
+                label="LDAP Enabled"
+                description="Query user directory via LDAP for contact lookups and authentication"
+                value={config.ldapEnabled}
+                onChange={() => toggleBool('ldapEnabled')}
+              />
+              {config.ldapEnabled && (
+                <>
+                  <TextRow
+                    label="LDAP Server URI"
+                    value={config.ldapUri}
+                    onChange={(v) => updateField('ldapUri', v)}
+                    placeholder="ldaps://ldap.example.com:636"
+                  />
+                  <TextRow
+                    label="Bind DN"
+                    value={config.ldapBindDn}
+                    onChange={(v) => updateField('ldapBindDn', v)}
+                    placeholder="cn=readonly,dc=example,dc=com"
+                  />
+                  <PasswordRow
+                    label="Bind Password"
+                    value={config.ldapBindPassword}
+                    onChange={(v) => updateField('ldapBindPassword', v)}
+                    placeholder="Enter LDAP bind password"
+                  />
+                  <TextRow
+                    label="Search Base"
+                    value={config.ldapSearchBase}
+                    onChange={(v) => updateField('ldapSearchBase', v)}
+                    placeholder="ou=users,dc=example,dc=com"
+                  />
+                  <SelectRow
+                    label="LDAP Type"
+                    value={config.ldapType}
+                    options={[
+                      { value: 'openldap', label: 'OpenLDAP' },
+                      { value: 'ms-ad', label: 'Microsoft Active Directory' },
+                    ]}
+                    onChange={(v) => updateField('ldapType', v as 'openldap' | 'ms-ad')}
+                  />
+                </>
+              )}
+            </div>
+          </Section>
+
+          <Section title="Authentication">
+            <div className="divide-y divide-border">
+              <ToggleRow
+                label="Enforce 2FA/TOTP"
+                description="Require two-factor authentication for all users"
+                value={config.tfaEnabled}
+                onChange={() => toggleBool('tfaEnabled')}
+              />
+              <ToggleRow
+                label="OpenID Connect (OIDC)"
+                description="Enable OIDC login alongside or instead of SAML"
+                value={config.oidcEnabled}
+                onChange={() => toggleBool('oidcEnabled')}
+              />
+              {config.oidcEnabled && (
+                <>
+                  <TextRow
+                    label="OIDC Client ID"
+                    value={config.oidcClientId}
+                    onChange={(v) => updateField('oidcClientId', v)}
+                    placeholder="vncmail-client"
+                  />
+                  <TextRow
+                    label="OIDC Discovery URL"
+                    value={config.oidcDiscoveryUrl}
+                    onChange={(v) => updateField('oidcDiscoveryUrl', v)}
+                    placeholder="https://idp.example.com/.well-known/openid-configuration"
+                  />
+                </>
+              )}
+              <div className="px-4 py-3 flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between sm:gap-4">
+                <div className="min-w-0">
+                  <span className="text-sm text-foreground">Session TTL (seconds)</span>
+                  <p className="text-xs text-muted-foreground mt-0.5">
+                    How long SSO sessions remain valid. Default: 8 hours (28800)
+                  </p>
+                </div>
+                <input
+                  type="number"
+                  min={0}
+                  value={config.sessionTtl}
+                  onChange={(e) => updateField('sessionTtl', Number(e.target.value))}
+                  className="h-8 w-full sm:w-32 rounded-md border border-input bg-background px-2.5 text-sm text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+                />
+              </div>
+            </div>
+          </Section>
+
+          <Section title="Federated Applications">
+            <div className="px-4 py-3">
+              <p className="text-xs text-muted-foreground mb-3">
+                Configure SSO redirect URLs for other VNC applications. Users signed into one
+                app will be transparently authenticated when navigating to another.
+              </p>
+              <div className="space-y-2">
+                {federatedAppsList.map(([appName, url]) => (
+                  <div
+                    key={appName}
+                    className="flex flex-col sm:flex-row items-start sm:items-center gap-2"
+                  >
+                    <input
+                      type="text"
+                      value={appName}
+                      readOnly
+                      className="h-8 w-full sm:w-36 rounded-md border border-input bg-muted/50 px-2.5 text-sm text-muted-foreground"
+                    />
+                    <input
+                      type="url"
+                      value={url}
+                      onChange={(e) => setFederatedApp(appName, e.target.value)}
+                      placeholder="https://vnc.example.com/auth/sso"
+                      className="h-8 w-full sm:flex-1 rounded-md border border-input bg-background px-2.5 text-sm text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+                    />
+                    <button
+                      onClick={() => removeFederatedApp(appName)}
+                      className="shrink-0 text-muted-foreground hover:text-destructive transition-colors"
+                      title={`Remove ${appName}`}
+                    >
+                      <X className="w-4 h-4" />
+                    </button>
+                  </div>
+                ))}
+                <AddFederatedApp
+                  existingKeys={new Set(Object.keys(config.federatedApps))}
+                  onAdd={(name, url) => setFederatedApp(name, url)}
+                />
+              </div>
+            </div>
+          </Section>
+        </>
+      )}
+    </div>
+  );
+}
+
+function AddFederatedApp({
+  existingKeys,
+  onAdd,
+}: {
+  existingKeys: Set<string>;
+  onAdd: (name: string, url: string) => void;
+}) {
+  const [adding, setAdding] = useState(false);
+  const [name, setName] = useState('');
+  const [url, setUrl] = useState('');
+  const [error, setError] = useState<string | null>(null);
+
+  if (!adding) {
+    return (
+      <button
+        type="button"
+        onClick={() => setAdding(true)}
+        className="inline-flex items-center gap-1.5 h-8 px-3 rounded-md border border-dashed border-input text-sm text-muted-foreground hover:bg-muted hover:text-foreground transition-colors"
+      >
+        <Plus className="w-3.5 h-3.5" />
+        Add federated app
+      </button>
+    );
+  }
+
+  function handleAdd() {
+    const trimmed = name.trim();
+    if (!trimmed) {
+      setError('Enter an application name');
+      return;
+    }
+    if (!/^[a-zA-Z0-9_-]+$/.test(trimmed)) {
+      setError('Name must contain only letters, numbers, hyphens, and underscores');
+      return;
+    }
+    if (existingKeys.has(trimmed)) {
+      setError('An app with this name already exists');
+      return;
+    }
+    if (!url.trim()) {
+      setError('Enter an SSO URL');
+      return;
+    }
+    setError(null);
+    onAdd(trimmed, url.trim());
+    setName('');
+    setUrl('');
+    setAdding(false);
+  }
+
+  function handleCancel() {
+    setAdding(false);
+    setName('');
+    setUrl('');
+    setError(null);
+  }
+
+  return (
+    <div className="flex flex-col gap-1.5">
+      <div className="flex flex-col sm:flex-row items-start sm:items-center gap-2">
+        <input
+          type="text"
+          autoFocus
+          value={name}
+          onChange={(e) => { setName(e.target.value); setError(null); }}
+          onKeyDown={(e) => { if (e.key === 'Enter') handleAdd(); }}
+          placeholder="App name (e.g. vnctalk)"
+          className="h-8 w-full sm:w-36 rounded-md border border-input bg-background px-2.5 text-sm text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+        />
+        <input
+          type="url"
+          value={url}
+          onChange={(e) => { setUrl(e.target.value); setError(null); }}
+          onKeyDown={(e) => { if (e.key === 'Enter') handleAdd(); }}
+          placeholder="https://vnctalk.example.com/auth/sso"
+          className="h-8 w-full sm:flex-1 rounded-md border border-input bg-background px-2.5 text-sm text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+        />
+        <div className="flex items-center gap-1 shrink-0">
+          <button
+            type="button"
+            onClick={handleAdd}
+            className="inline-flex items-center h-8 px-3 rounded-md bg-primary text-primary-foreground text-sm font-medium hover:bg-primary/90 transition-colors"
+          >
+            Add
+          </button>
+          <button
+            type="button"
+            onClick={handleCancel}
+            className="h-8 px-2.5 rounded-md text-sm text-muted-foreground hover:text-foreground transition-colors"
+          >
+            Cancel
+          </button>
+        </div>
+      </div>
+      {error && <span className="text-xs text-destructive">{error}</span>}
+    </div>
+  );
+}
+
+function Section({ title, children }: { title: string; children: React.ReactNode }) {
+  return (
+    <div className="border border-border rounded-lg">
+      <div className="px-4 py-3 border-b border-border bg-muted/30">
+        <h2 className="text-sm font-medium text-foreground">{title}</h2>
+      </div>
+      {children}
+    </div>
+  );
+}
+
+function TextRow({
+  label,
+  value,
+  onChange,
+  placeholder,
+}: {
+  label: string;
+  value: string;
+  onChange: (v: string) => void;
+  placeholder?: string;
+}) {
+  return (
+    <div className="px-4 py-3 flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between sm:gap-4">
+      <span className="text-sm text-foreground">{label}</span>
+      <input
+        type="text"
+        value={value ?? ''}
+        onChange={(e) => onChange(e.target.value)}
+        placeholder={placeholder}
+        className="h-8 w-full sm:w-72 rounded-md border border-input bg-background px-2.5 text-sm text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+      />
+    </div>
+  );
+}
+
+function PasswordRow({
+  label,
+  value,
+  onChange,
+  placeholder,
+}: {
+  label: string;
+  value: string;
+  onChange: (v: string) => void;
+  placeholder?: string;
+}) {
+  const isMasked = value === '••••••';
+
+  return (
+    <div className="px-4 py-3 flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between sm:gap-4">
+      <span className="text-sm text-foreground">{label}</span>
+      <div className="flex items-center gap-2 w-full sm:w-auto">
+        <input
+          type={isMasked ? 'text' : 'password'}
+          value={value ?? ''}
+          onChange={(e) => onChange(e.target.value)}
+          placeholder={placeholder || (isMasked ? 'Saved - type to replace' : undefined)}
+          className="h-8 w-full sm:w-72 rounded-md border border-input bg-background px-2.5 text-sm text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+        />
+      </div>
+    </div>
+  );
+}
+
+function ToggleRow({
+  label,
+  description,
+  value,
+  onChange,
+}: {
+  label: string;
+  description?: string;
+  value: boolean;
+  onChange: () => void;
+}) {
+  return (
+    <div className="px-4 py-3 flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between sm:gap-4">
+      <div className="min-w-0">
+        <span className="text-sm text-foreground">{label}</span>
+        {description && (
+          <p className="text-xs text-muted-foreground mt-0.5">{description}</p>
+        )}
+      </div>
+      <button
+        onClick={onChange}
+        className={`shrink-0 relative inline-flex h-5 w-9 items-center rounded-full transition-colors ${
+          value ? 'bg-primary' : 'bg-muted-foreground/25 dark:bg-muted-foreground/50'
+        }`}
+      >
+        <span
+          className={`inline-block h-3.5 w-3.5 transform rounded-full bg-background shadow transition-transform ${
+            value ? 'translate-x-[18px]' : 'translate-x-[3px]'
+          }`}
+        />
+      </button>
+    </div>
+  );
+}
+
+function SelectRow({
+  label,
+  value,
+  options,
+  onChange,
+}: {
+  label: string;
+  value: string;
+  options: { value: string; label: string }[];
+  onChange: (v: string) => void;
+}) {
+  return (
+    <div className="px-4 py-3 flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between sm:gap-4">
+      <span className="text-sm text-foreground">{label}</span>
+      <select
+        value={value}
+        onChange={(e) => onChange(e.target.value)}
+        className="h-8 rounded-md border border-input bg-background px-2.5 text-sm text-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+      >
+        {options.map((opt) => (
+          <option key={opt.value} value={opt.value}>
+            {opt.label}
+          </option>
+        ))}
+      </select>
+    </div>
+  );
+}

app/(main)/admin/change-password/page.tsx

@@ -65,7 +65,7 @@ export default function ChangePasswordPage() {
               value={currentPassword}
               onChange={e => setCurrentPassword(e.target.value)}
               required
-              className="w-full h-9 pl-9 pr-3 rounded-md border border-input bg-background text-sm text-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+              className="w-full h-9 ps-9 pe-3 rounded-md border border-input bg-background text-sm text-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
               autoComplete="current-password"
             />
           </div>

app/(main)/admin/layout.tsx

@@ -12,7 +12,9 @@ import {
   Scale,
   ScrollText,
   LogOut,
+  Key,
   KeyRound,
+  Bot,
   Puzzle,
   SwatchBook,
   Activity,
@@ -54,7 +56,9 @@ const NAV_GROUPS: ReadonlyArray<{
       { tab: 'settings', label: 'Settings', icon: Settings },
       { tab: 'branding', label: 'Branding', icon: Palette },
       { tab: 'auth', label: 'Authentication', icon: Shield },
+      { tab: 'vncdirectory', label: 'VNCdirectory', icon: Key },
       { tab: 'policy', label: 'Policy', icon: Scale },
+      { tab: 'ai-policy', label: 'AI', icon: Bot },
     ],
   },
   {
@@ -212,7 +216,7 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
                     type="button"
                     onClick={handleClick}
                     className={cn(
-                      'w-full text-left px-3 py-2 rounded-md text-sm transition-colors duration-150 flex items-center gap-2.5',
+                      'w-full text-start px-3 py-2 rounded-md text-sm transition-colors duration-150 flex items-center gap-2.5',
                       active
                         ? 'bg-accent text-accent-foreground font-medium'
                         : 'hover:bg-muted text-foreground'
@@ -248,7 +252,7 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
           <Link
             href="/admin/change-password"
             className={cn(
-              'w-full text-left px-3 py-2 rounded-md text-sm transition-colors duration-150 flex items-center gap-2.5',
+              'w-full text-start px-3 py-2 rounded-md text-sm transition-colors duration-150 flex items-center gap-2.5',
               pathname === '/admin/change-password'
                 ? 'bg-accent text-accent-foreground font-medium'
                 : 'hover:bg-muted text-foreground'
@@ -263,7 +267,7 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
         )}
         <button
           onClick={handleLogout}
-          className="w-full text-left px-3 py-2 rounded-md text-sm transition-colors duration-150 flex items-center gap-2.5 hover:bg-muted text-foreground"
+          className="w-full text-start px-3 py-2 rounded-md text-sm transition-colors duration-150 flex items-center gap-2.5 hover:bg-muted text-foreground"
         >
           <LogOut className="w-4 h-4 shrink-0 text-muted-foreground" />
           Sign out
@@ -275,7 +279,7 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
   return (
     <div className="min-h-screen flex bg-background">
       {/* Slim webmail nav rail (desktop only) */}
-      <nav className="hidden md:flex w-14 bg-secondary flex-col items-center py-3 gap-2 border-r border-border sticky top-0 h-screen shrink-0">
+      <nav className="hidden md:flex w-14 bg-secondary flex-col items-center py-3 gap-2 border-e border-border sticky top-0 h-screen shrink-0">
         {logoUrl ? (
           <img src={logoUrl} alt="" className="w-7 h-7 object-contain mb-2" />
         ) : (
@@ -326,12 +330,12 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
       </nav>
 
       {/* Admin Sidebar (desktop only) */}
-      <aside className="hidden md:flex w-60 border-r border-border bg-secondary flex-col sticky top-0 h-screen">
+      <aside className="hidden md:flex w-60 border-e border-border bg-secondary flex-col sticky top-0 h-screen">
         <div className="h-14 flex items-center px-4 border-b border-border shrink-0">
           {logoUrl ? (
-            <img src={logoUrl} alt="" className="w-5 h-5 object-contain mr-2" />
+            <img src={logoUrl} alt="" className="w-5 h-5 object-contain me-2" />
           ) : (
-            <Shield className="w-5 h-5 text-primary mr-2" />
+            <Shield className="w-5 h-5 text-primary me-2" />
           )}
           <span className="font-semibold text-sm text-foreground">Admin Panel</span>
         </div>
@@ -350,7 +354,7 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
       {/* Mobile drawer */}
       <aside
         className={cn(
-          'md:hidden fixed inset-y-0 left-0 z-50 w-72 max-w-[85vw] border-r border-border bg-secondary flex flex-col transition-transform duration-200 ease-out',
+          'md:hidden fixed inset-y-0 left-0 z-50 w-72 max-w-[85vw] border-e border-border bg-secondary flex flex-col transition-transform duration-200 ease-out',
           mobileNavOpen ? 'translate-x-0' : '-translate-x-full'
         )}
         aria-label="Admin navigation"
@@ -359,9 +363,9 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
         <div className="h-14 flex items-center justify-between px-3 border-b border-border shrink-0">
           <div className="flex items-center min-w-0">
             {logoUrl ? (
-              <img src={logoUrl} alt="" className="w-5 h-5 object-contain mr-2" />
+              <img src={logoUrl} alt="" className="w-5 h-5 object-contain me-2" />
             ) : (
-              <Shield className="w-5 h-5 text-primary mr-2" />
+              <Shield className="w-5 h-5 text-primary me-2" />
             )}
             <span className="font-semibold text-sm text-foreground truncate">Admin Panel</span>
           </div>
@@ -391,9 +395,9 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
           </button>
           <div className="flex items-center min-w-0">
             {logoUrl ? (
-              <img src={logoUrl} alt="" className="w-5 h-5 object-contain mr-2" />
+              <img src={logoUrl} alt="" className="w-5 h-5 object-contain me-2" />
             ) : (
-              <Shield className="w-5 h-5 text-primary mr-2" />
+              <Shield className="w-5 h-5 text-primary me-2" />
             )}
             <span className="font-semibold text-sm text-foreground truncate">Admin Panel</span>
           </div>

app/(main)/admin/marketplace/[slug]/page.tsx

@@ -186,7 +186,7 @@ export default function MarketplacePreviewPage() {
   if (loading) {
     return (
       <div className="flex items-center justify-center py-12 text-muted-foreground text-sm">
-        <Loader2 className="w-4 h-4 animate-spin mr-2" />
+        <Loader2 className="w-4 h-4 animate-spin me-2" />
         Loading...
       </div>
     );
@@ -512,7 +512,7 @@ export default function MarketplacePreviewPage() {
         <section className="border border-border rounded-lg">
           <button
             onClick={() => setShowManifest(v => !v)}
-            className="w-full flex items-center justify-between gap-2 px-4 py-3 text-left hover:bg-muted/30 transition-colors"
+            className="w-full flex items-center justify-between gap-2 px-4 py-3 text-start hover:bg-muted/30 transition-colors"
           >
             <div className="flex items-center gap-2">
               <FileCode className="w-4 h-4 text-muted-foreground" />
@@ -532,7 +532,7 @@ export default function MarketplacePreviewPage() {
         <section className="border border-border rounded-lg">
           <button
             onClick={() => setShowSource(v => !v)}
-            className="w-full flex items-center justify-between gap-2 px-4 py-3 text-left hover:bg-muted/30 transition-colors"
+            className="w-full flex items-center justify-between gap-2 px-4 py-3 text-start hover:bg-muted/30 transition-colors"
           >
             <div className="flex items-center gap-2">
               <FileCode className="w-4 h-4 text-muted-foreground" />

app/(main)/admin/page.tsx

@@ -7,12 +7,14 @@ import { SettingsTab } from './_tabs/settings';
 import { BrandingTab } from './_tabs/branding';
 import { AuthTab } from './_tabs/auth';
 import { PolicyTab } from './_tabs/policy';
+import { AiPolicyTab } from './_tabs/ai-policy';
 import { PluginsTab } from './_tabs/plugins';
 import { ThemesTab } from './_tabs/themes';
 import { MarketplaceTab } from './_tabs/marketplace';
 import { VersionTab } from './_tabs/version';
 import { TelemetryTab } from './_tabs/telemetry';
 import { LogsTab } from './_tabs/logs';
+import { VncDirectoryTab } from './_tabs/vncdirectory';
 
 export default function AdminPage() {
   const activeTab = useAdminTabStore((s) => s.activeTab);
@@ -39,11 +41,13 @@ export default function AdminPage() {
     case 'branding': return <BrandingTab />;
     case 'auth': return <AuthTab />;
     case 'policy': return <PolicyTab />;
+    case 'ai-policy': return <AiPolicyTab />;
     case 'plugins': return <PluginsTab />;
     case 'themes': return <ThemesTab />;
     case 'marketplace': return <MarketplaceTab />;
     case 'version': return <VersionTab />;
     case 'telemetry': return <TelemetryTab />;
     case 'logs': return <LogsTab />;
+    case 'vncdirectory': return <VncDirectoryTab />;
   }
 }

app/(main)/admin/vncdirectory/page.tsx

@@ -0,0 +1,5 @@
+import { redirect } from 'next/navigation';
+
+export default function Page() {
+  redirect('/admin?tab=vncdirectory');
+}

app/(main)/global-error.tsx

@@ -44,7 +44,7 @@ export default function GlobalError({
               onClick={reset}
               className="inline-flex items-center px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition-colors"
             >
-              <RefreshCw className="w-4 h-4 mr-2" />
+              <RefreshCw className="w-4 h-4 me-2" />
               Try again
             </button>
           </div>

app/(main)/layout.tsx

@@ -1,9 +1,16 @@
 import type { Metadata, Viewport } from "next";
+import { getLocaleDirection } from "@/i18n/direction";
 import { Geist, Geist_Mono } from "next/font/google";
 import { headers } from "next/headers";
 import { getLocale, getTranslations } from "next-intl/server";
 import { ServiceWorkerRegistration } from "@/components/service-worker-registration";
+import { FaviconBadge } from "@/components/favicon-badge";
 import { configManager } from "@/lib/admin/config-manager";
+import {
+  matchDomainBranding,
+  parseDomainBranding,
+  pickRequestHost,
+} from "@/lib/admin/domain-branding";
 import { withBasePath } from "@/lib/browser-navigation";
 import { locales } from "@/i18n/routing";
 import "../globals.css";
@@ -38,7 +45,19 @@ export const viewport: Viewport = {
 
 export async function generateMetadata(): Promise<Metadata> {
   await configManager.ensureLoaded();
-  const faviconUrl = configManager.get<string>("faviconUrl", "/branding/Bulwark_Favicon.svg");
+  // The <head> favicon must honor per-domain branding, exactly like
+  // /api/config, app/manifest.ts, and /api/pwa-icon already do. Resolve the
+  // request host and prefer its override; fall back to the global
+  // admin/env/default value when the host has no favicon override (#585).
+  const host = pickRequestHost(await headers());
+  const domainOverride = matchDomainBranding(
+    host,
+    parseDomainBranding(configManager.get<unknown>("domainBranding", [])),
+  ).faviconUrl;
+  const faviconUrl =
+    domainOverride && domainOverride.length > 0
+      ? domainOverride
+      : configManager.get<string>("faviconUrl", "/branding/Bulwark_Favicon.svg");
   // Localize the <head> description to match the UI language; a hardcoded
   // English description is another signal that makes Chrome offer to
   // "translate this page". Resolve the locale from the request path, since this
@@ -76,7 +95,7 @@ export default async function RootLayout({
   const parentOrigin = process.env.NEXT_PUBLIC_PARENT_ORIGIN || "";
 
   return (
-    <html lang={locale} suppressHydrationWarning>
+    <html lang={locale} dir={getLocaleDirection(locale)} suppressHydrationWarning>
       <head>
         <meta name="theme-color" content="#ffffff" />
         <meta name="mobile-web-app-capable" content="yes" />
@@ -114,6 +133,7 @@ export default async function RootLayout({
         className={`${geistSans.variable} ${geistMono.variable} antialiased`}
       >
         <ServiceWorkerRegistration />
+        <FaviconBadge />
         {children}
       </body>
     </html>

app/(main)/setup/page.tsx

@@ -780,7 +780,7 @@ function ServerStep({ config, setConfig, onNext }: Pick<StepProps, 'config' | 's
                   </p>
                 </div>
               </div>
-              <label className="mt-3 ml-[3.25rem] flex items-center gap-2 cursor-pointer">
+              <label className="mt-3 ms-[3.25rem] flex items-center gap-2 cursor-pointer">
                 <input
                   type="checkbox"
                   checked={confirmedNonJmap}
@@ -870,7 +870,7 @@ function ServerStep({ config, setConfig, onNext }: Pick<StepProps, 'config' | 's
             )}
 
             {hasRowErrors && (
-              <ul className="text-xs text-destructive list-disc pl-5 space-y-0.5">
+              <ul className="text-xs text-destructive list-disc ps-5 space-y-0.5">
                 {rowErrors.map((err, i) => (
                   <li key={i}>{err}</li>
                 ))}
@@ -1384,7 +1384,7 @@ function BrandingAsset({
       </div>
 
       {showUrlField && (
-        <div className="mt-3 pl-[4.75rem]">
+        <div className="mt-3 ps-[4.75rem]">
           <Input
             value={value}
             onChange={onChange}
@@ -1394,7 +1394,7 @@ function BrandingAsset({
       )}
 
       {uploadError && (
-        <p className="mt-2 pl-[4.75rem] text-xs text-destructive">{uploadError}</p>
+        <p className="mt-2 ps-[4.75rem] text-xs text-destructive">{uploadError}</p>
       )}
     </div>
   );
@@ -1601,7 +1601,7 @@ function SummaryRow({ label, value, mono }: { label: string; value: string; mono
   return (
     <div className="flex justify-between items-baseline gap-3 text-sm">
       <span className="text-muted-foreground shrink-0">{label}</span>
-      <span className={'text-foreground text-right truncate min-w-0 ' + (mono ? 'font-mono text-xs' : '')}>
+      <span className={'text-foreground text-end truncate min-w-0 ' + (mono ? 'font-mono text-xs' : '')}>
         {value || <span className="text-muted-foreground italic">-</span>}
       </span>
     </div>

app/api/account/stalwart/jmap/route.ts

@@ -1,6 +1,7 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { logger } from '@/lib/logger';
 import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { JmapRedirectError, fetchJmapSession, postJmap, rebaseApiUrl } from '@/lib/stalwart/jmap-api';
 
 /**
  * POST /api/account/stalwart/jmap
@@ -23,14 +24,26 @@ export async function POST(request: NextRequest) {
 
     const body = await request.text();
 
-    const response = await fetch(`${creds.serverUrl}/jmap/`, {
-      method: 'POST',
-      headers: {
-        'Authorization': creds.authHeader,
-        'Content-Type': 'application/json',
-      },
-      body,
-    });
+    const directUrl = `${creds.serverUrl}/jmap/`;
+    let response = await postJmap(directUrl, creds.authHeader, body);
+
+    if (response.status === 404) {
+      // `${serverUrl}/jmap/` is not the API endpoint on this deployment
+      // (path prefix, non-Stalwart URL layout). Resolve the session's
+      // advertised apiUrl on the same host and retry once.
+      const session = await fetchJmapSession(creds.serverUrl, creds.authHeader);
+      const apiUrl = rebaseApiUrl(session, creds.serverUrl);
+      if (apiUrl && apiUrl !== directUrl) {
+        response = await postJmap(apiUrl, creds.authHeader, body);
+      }
+    }
+
+    if (!response.ok) {
+      logger.warn('Stalwart JMAP passthrough upstream error', {
+        status: response.status,
+        serverUrl: creds.serverUrl,
+      });
+    }
 
     const responseText = await response.text();
     return new NextResponse(responseText, {
@@ -38,9 +51,27 @@ export async function POST(request: NextRequest) {
       headers: { 'Content-Type': response.headers.get('Content-Type') || 'application/json' },
     });
   } catch (error) {
+    if (error instanceof JmapRedirectError) {
+      logger.error('Stalwart JMAP passthrough redirect error', { error: error.message });
+      return NextResponse.json({ error: error.message }, { status: 502 });
+    }
+    // `fetch failed` from undici is too generic to debug — the real reason
+    // (ENOTFOUND, ECONNREFUSED, self-signed TLS, …) lives on `error.cause`.
+    const err = error as Error & { cause?: { code?: string; message?: string } };
     logger.error('Stalwart JMAP passthrough error', {
-      error: error instanceof Error ? error.message : 'Unknown',
+      error: err?.message ?? 'Unknown',
+      causeCode: err?.cause?.code,
+      causeMessage: err?.cause?.message,
     });
+    // The server this process failed to reach is the user's own mail server,
+    // so the reason is worth surfacing: an opaque 500 leaves operators with
+    // nothing to act on.
+    if (err?.cause?.code) {
+      return NextResponse.json(
+        { error: `Cannot reach the JMAP server (${err.cause.code})` },
+        { status: 502 },
+      );
+    }
     return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
   }
 }

app/api/admin/ai/entitlement/route.ts

@@ -0,0 +1,56 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { requireAdminAuth, getClientIP } from '@/lib/admin/session';
+import { auditLog } from '@/lib/admin/audit';
+import { logger } from '@/lib/logger';
+import { getEntitlementState, setSeatTotal, revokeSeat, readMeteringLedger } from '@/lib/ai/entitlement';
+
+export const runtime = 'nodejs';
+
+/**
+ * Admin-only data endpoints for the `server` AI class's real entitlement
+ * enforcement (lib/ai/entitlement.ts). This is the data plumbing only — the
+ * visual admin console (docs/AI-ASSISTANT-CONCEPT.md §6) is a separate,
+ * not-yet-built UI on top of these same endpoints.
+ */
+export async function GET(request: NextRequest) {
+  const result = await requireAdminAuth(request);
+  if ('error' in result) return result.error;
+
+  try {
+    const [state, ledger] = await Promise.all([getEntitlementState(), readMeteringLedger()]);
+    return NextResponse.json({ ...state, recentUsage: ledger }, { headers: { 'Cache-Control': 'no-store' } });
+  } catch (error) {
+    logger.error('ai entitlement read error', { error: error instanceof Error ? error.message : String(error) });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}
+
+export async function PUT(request: NextRequest) {
+  const result = await requireAdminAuth(request);
+  if ('error' in result) return result.error;
+  const ip = getClientIP(request);
+
+  let body: { seatsTotal?: unknown; revokeUsername?: unknown };
+  try {
+    body = await request.json();
+  } catch {
+    return NextResponse.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+
+  try {
+    if (typeof body.seatsTotal === 'number') {
+      const state = await setSeatTotal(body.seatsTotal);
+      await auditLog('ai.entitlement.seats_total', { seatsTotal: state.seatsTotal }, ip);
+      return NextResponse.json(state);
+    }
+    if (typeof body.revokeUsername === 'string' && body.revokeUsername) {
+      const state = await revokeSeat(body.revokeUsername);
+      await auditLog('ai.entitlement.revoke_seat', { username: body.revokeUsername }, ip);
+      return NextResponse.json(state);
+    }
+    return NextResponse.json({ error: 'seatsTotal or revokeUsername is required' }, { status: 400 });
+  } catch (error) {
+    logger.error('ai entitlement update error', { error: error instanceof Error ? error.message : String(error) });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/admin/ai/policy/route.ts

@@ -0,0 +1,111 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { configManager } from '@/lib/admin/config-manager';
+import { requireAdminAuth, getClientIP } from '@/lib/admin/session';
+import { auditLog } from '@/lib/admin/audit';
+import { logger } from '@/lib/logger';
+import type { AiConsoleConfig, AiClass } from '@/lib/ai/types';
+
+export const runtime = 'nodejs';
+
+const VALID_CLASSES: AiClass[] = ['local', 'server', 'public'];
+
+/**
+ * GET/PUT /api/admin/ai/policy - the admin console's writable config
+ * (docs/ADMIN-AI-POLICY-CONSOLE-SPEC.md §6): per-class enable, model/
+ * provider allow-lists, retrieval on/off, BYOK consent text. Separate from
+ * /api/admin/ai/entitlement (seats/ledger - runtime state) and from the
+ * generic /api/admin/policy (FeatureGates - the master aiAssistantEnabled
+ * toggle stays there, this console only links to it, per spec §6 open
+ * question 3).
+ */
+export async function GET(request: NextRequest) {
+  const result = await requireAdminAuth(request);
+  if ('error' in result) return result.error;
+
+  try {
+    await configManager.ensureLoaded();
+    return NextResponse.json(configManager.getAiConsoleConfig(), { headers: { 'Cache-Control': 'no-store' } });
+  } catch (error) {
+    logger.error('ai console policy read error', { error: error instanceof Error ? error.message : String(error) });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}
+
+function validate(body: Partial<AiConsoleConfig>): string | null {
+  if (body.classesEnabled !== undefined) {
+    if (typeof body.classesEnabled !== 'object' || body.classesEnabled === null) return 'classesEnabled must be an object';
+    for (const key of Object.keys(body.classesEnabled)) {
+      if (!VALID_CLASSES.includes(key as AiClass)) return `classesEnabled has an unknown class "${key}"`;
+    }
+  }
+  if (body.serverModelAllowlist !== undefined && body.serverModelAllowlist !== null) {
+    if (!Array.isArray(body.serverModelAllowlist) || !body.serverModelAllowlist.every((m) => typeof m === 'string')) {
+      return 'serverModelAllowlist must be an array of strings or null';
+    }
+  }
+  if (body.publicProviderAllowlist !== undefined && body.publicProviderAllowlist !== null) {
+    if (!Array.isArray(body.publicProviderAllowlist) || !body.publicProviderAllowlist.every((m) => typeof m === 'string')) {
+      return 'publicProviderAllowlist must be an array of strings or null';
+    }
+  }
+  if (body.publicPresets !== undefined) {
+    if (!Array.isArray(body.publicPresets)) return 'publicPresets must be an array';
+    const ids = new Set<string>();
+    for (const preset of body.publicPresets) {
+      if (
+        typeof preset !== 'object' || preset === null ||
+        typeof preset.id !== 'string' || !preset.id ||
+        typeof preset.name !== 'string' || !preset.name ||
+        typeof preset.baseUrl !== 'string' || !preset.baseUrl ||
+        typeof preset.model !== 'string' || !preset.model ||
+        typeof preset.apiKeyEnvVar !== 'string' || !preset.apiKeyEnvVar
+      ) {
+        return 'each publicPresets entry needs non-empty id, name, baseUrl, model, apiKeyEnvVar';
+      }
+      if (ids.has(preset.id)) return `duplicate publicPresets id "${preset.id}"`;
+      ids.add(preset.id);
+    }
+  }
+  if (body.retrievalEnabled !== undefined && typeof body.retrievalEnabled !== 'boolean') {
+    return 'retrievalEnabled must be a boolean';
+  }
+  if (body.consent !== undefined && body.consent !== null) {
+    if (typeof body.consent !== 'object' || typeof body.consent.version !== 'string' || typeof body.consent.text !== 'string') {
+      return 'consent must be { version: string, text: string } or null';
+    }
+  }
+  return null;
+}
+
+export async function PUT(request: NextRequest) {
+  const result = await requireAdminAuth(request);
+  if ('error' in result) return result.error;
+  const ip = getClientIP(request);
+
+  let body: Partial<AiConsoleConfig>;
+  try {
+    body = await request.json();
+  } catch {
+    return NextResponse.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+
+  const validationError = validate(body);
+  if (validationError) return NextResponse.json({ error: validationError }, { status: 400 });
+
+  try {
+    await configManager.ensureLoaded();
+    const next = await configManager.setAiConsoleConfig(body);
+    await auditLog('ai.console_policy.update', {
+      classesEnabled: next.classesEnabled,
+      retrievalEnabled: next.retrievalEnabled,
+      consentVersion: next.consent?.version ?? null,
+      serverModelAllowlistCount: next.serverModelAllowlist?.length ?? null,
+      publicProviderAllowlistCount: next.publicProviderAllowlist?.length ?? null,
+      publicPresetsCount: next.publicPresets.length,
+    }, ip);
+    return NextResponse.json(next);
+  } catch (error) {
+    logger.error('ai console policy update error', { error: error instanceof Error ? error.message : String(error) });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/admin/marketplace/route.ts

@@ -341,6 +341,7 @@ export async function POST(request: NextRequest) {
         author: (manifest.author as string) || 'Unknown',
         description: (manifest.description as string) || '',
         type: (manifest.type as string) || 'hook',
+        ...(manifest.tier === 'privileged' ? { tier: 'privileged' } : {}),
         permissions,
         entrypoint,
         enabled: existingPlugin?.enabled ?? true,

app/api/admin/plugins/route.ts

@@ -158,15 +158,47 @@ export async function POST(request: NextRequest) {
     }
     const code = await entryFile.async('string');
 
-    // Security: block plugins containing dangerous JS patterns
-    const warnings: string[] = [];
-    for (const { pattern, label } of SUSPICIOUS_JS_PATTERNS) {
-      if (pattern.test(code)) warnings.push(`Contains ${label}`);
-      pattern.lastIndex = 0;
+    // Security: scan for dangerous JS patterns across EVERY script in the
+    // bundle, not just the entrypoint - a second .js file was previously never
+    // looked at.
+    //
+    // The result is a reviewable finding rather than an unconditional reject.
+    // Minified crypto libraries (openpgp.js, pkijs) legitimately contain these
+    // patterns, so a hard block makes S/MIME and PGP plugins uninstallable.
+    // This route is already admin-authenticated, so the scan is defence in
+    // depth against an accidental or compromised upload, not a trust boundary:
+    // an admin may proceed with `overrideWarnings`, and the override is
+    // recorded in the audit log with the exact findings.
+    const findings: Array<{ file: string; patterns: string[] }> = [];
+    for (const [filePath, entry] of Object.entries(zip.files)) {
+      if (entry.dir) continue;
+      const ext = filePath.slice(filePath.lastIndexOf('.')).toLowerCase();
+      if (ext !== '.js' && ext !== '.mjs') continue;
+      const source = filePath === root + (manifest.entrypoint as string)
+        ? code
+        : await entry.async('string');
+      const hits: string[] = [];
+      for (const { pattern, label } of SUSPICIOUS_JS_PATTERNS) {
+        if (pattern.test(source)) hits.push(label);
+        pattern.lastIndex = 0;
+      }
+      if (hits.length > 0) {
+        findings.push({ file: filePath.slice(root.length), patterns: hits });
+      }
     }
-    if (warnings.length > 0) {
+
+    const overrideWarnings = formData.get('overrideWarnings') === 'true';
+    if (findings.length > 0 && !overrideWarnings) {
+      const summary = findings
+        .map(f => `${f.file}: ${f.patterns.join(', ')}`)
+        .join('; ');
       return NextResponse.json(
-        { error: `Plugin rejected: ${warnings.join(', ')}. These patterns are not allowed for security reasons.` },
+        {
+          error: `Plugin rejected: ${summary}. Review the bundle; if these are expected `
+            + `(e.g. a vendored crypto library), re-upload with "overrideWarnings" to proceed.`,
+          findings,
+          canOverride: true,
+        },
         { status: 400 },
       );
     }
@@ -212,8 +244,20 @@ export async function POST(request: NextRequest) {
     await savePlugin(plugin, code);
     invalidateFrameOriginsCache();
     await auditLog('plugin.install', { id: plugin.id, name: plugin.name, version: plugin.version, frameOrigins: declaredFrameOrigins, httpOrigins: declaredHttpOrigins, apiPostPaths: declaredApiPostPaths }, ip);
+    if (findings.length > 0) {
+      // Record WHAT was waved through, not merely that an override happened -
+      // otherwise the audit trail can't answer "which patterns did we accept?".
+      await auditLog(
+        'plugin.install.scan_override',
+        { id: plugin.id, version: plugin.version, findings },
+        ip,
+      );
+      logger.warn('Plugin installed with scanner override', { id: plugin.id, findings });
+    }
 
-    return NextResponse.json({ plugin });
+    // Echo accepted findings back so the admin UI can confirm exactly what was
+    // waved through, rather than reporting a bare success.
+    return NextResponse.json(findings.length > 0 ? { plugin, findings } : { plugin });
   } catch (error) {
     logger.error('Plugin install error', { error: error instanceof Error ? error.message : 'Unknown error' });
     return NextResponse.json({ error: 'Internal server error' }, { status: 500 });

app/api/admin/vncdirectory/route.ts

@@ -0,0 +1,146 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { requireAdminAuth, getClientIP } from '@/lib/admin/session';
+import { auditLog } from '@/lib/admin/audit';
+import { logger } from '@/lib/logger';
+import {
+  getVncDirectoryConfig,
+  saveVncDirectoryConfig,
+  DEFAULT_VNCDIRECTORY_CONFIG,
+  VNCDIRECTORY_SENSITIVE_KEYS,
+  type VncDirectoryConfig,
+} from '@/lib/admin/vncdirectory-config';
+
+const VALID_LDAP_TYPES = new Set(['openldap', 'ms-ad']);
+const KNOWN_KEYS = new Set(Object.keys(DEFAULT_VNCDIRECTORY_CONFIG));
+
+function maskConfigForClient(config: VncDirectoryConfig): Record<string, unknown> {
+  const result: Record<string, unknown> = {};
+  for (const [key, value] of Object.entries(config)) {
+    if (VNCDIRECTORY_SENSITIVE_KEYS.has(key)) {
+      result[key] = typeof value === 'string' && value.length > 0 ? '••••••' : '';
+    } else {
+      result[key] = value;
+    }
+  }
+  return result;
+}
+
+export async function GET(request: NextRequest) {
+  try {
+    const result = await requireAdminAuth(request);
+    if ('error' in result) return result.error;
+
+    const config = await getVncDirectoryConfig();
+    return NextResponse.json(maskConfigForClient(config), {
+      headers: { 'Cache-Control': 'no-store' },
+    });
+  } catch (error) {
+    logger.error('VNCdirectory config read error', {
+      error: error instanceof Error ? error.message : 'Unknown error',
+    });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}
+
+export async function POST(request: NextRequest) {
+  try {
+    const authResult = await requireAdminAuth(request);
+    if ('error' in authResult) return authResult.error;
+
+    const ip = getClientIP(request);
+    const body = await request.json();
+
+    if (!body || typeof body !== 'object' || Array.isArray(body)) {
+      return NextResponse.json({ error: 'Request body must be an object' }, { status: 400 });
+    }
+
+    // Validate known keys only
+    const unknownKeys = Object.keys(body).filter((k) => !KNOWN_KEYS.has(k));
+    if (unknownKeys.length > 0) {
+      return NextResponse.json(
+        { error: `Unknown config keys: ${unknownKeys.join(', ')}` },
+        { status: 400 },
+      );
+    }
+
+    // Validate boolean fields
+    const boolFields = ['enabled', 'samlEnabled', 'ldapEnabled', 'tfaEnabled', 'oidcEnabled'];
+    for (const key of boolFields) {
+      if (key in body && typeof body[key] !== 'boolean') {
+        return NextResponse.json(
+          { error: `${key} must be a boolean` },
+          { status: 400 },
+        );
+      }
+    }
+
+    // Validate sessionTtl
+    if ('sessionTtl' in body) {
+      const ttl = Number(body.sessionTtl);
+      if (!Number.isFinite(ttl) || ttl < 0) {
+        return NextResponse.json(
+          { error: 'sessionTtl must be a non-negative number' },
+          { status: 400 },
+        );
+      }
+      body.sessionTtl = ttl;
+    }
+
+    // Validate ldapType
+    if ('ldapType' in body && !VALID_LDAP_TYPES.has(body.ldapType)) {
+      return NextResponse.json(
+        { error: `Invalid ldapType: ${body.ldapType}. Must be 'openldap' or 'ms-ad'.` },
+        { status: 400 },
+      );
+    }
+
+    // Validate federatedApps
+    if ('federatedApps' in body) {
+      if (!body.federatedApps || typeof body.federatedApps !== 'object' || Array.isArray(body.federatedApps)) {
+        return NextResponse.json(
+          { error: 'federatedApps must be an object mapping app names to URLs' },
+          { status: 400 },
+        );
+      }
+      for (const [appName, url] of Object.entries(body.federatedApps as Record<string, unknown>)) {
+        if (typeof url !== 'string') {
+          return NextResponse.json(
+            { error: `federatedApps.${appName} must be a string URL` },
+            { status: 400 },
+          );
+        }
+      }
+    }
+
+    // If apiKey or ldapBindPassword are "••••••", preserve existing value
+    const currentConfig = await getVncDirectoryConfig();
+    if (body.apiKey === '••••••') {
+      body.apiKey = currentConfig.apiKey;
+    }
+    if (body.ldapBindPassword === '••••••') {
+      body.ldapBindPassword = currentConfig.ldapBindPassword;
+    }
+
+    const changedKeys = Object.keys(body).filter((k) => {
+      const currentVal = currentConfig[k as keyof VncDirectoryConfig];
+      const newVal = body[k];
+      if (k === 'federatedApps') {
+        return JSON.stringify(currentVal) !== JSON.stringify(newVal);
+      }
+      return String(currentVal ?? '') !== String(newVal ?? '');
+    });
+
+    await saveVncDirectoryConfig(body as Partial<VncDirectoryConfig>);
+
+    if (changedKeys.length > 0) {
+      await auditLog('vncdirectory.update', { changedKeys }, ip);
+    }
+
+    return NextResponse.json({ ok: true });
+  } catch (error) {
+    logger.error('VNCdirectory config update error', {
+      error: error instanceof Error ? error.message : 'Unknown error',
+    });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/ai/opencode/chat/route.ts

@@ -0,0 +1,94 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { configManager } from '@/lib/admin/config-manager';
+import { findOpencodeServer, parseModelRef, opencodePrompt } from '@/lib/ai/opencode';
+import { logger } from '@/lib/logger';
+
+export const runtime = 'nodejs';
+
+const MAX_BODY_BYTES = 200 * 1024;
+
+interface ChatMessage {
+  role: 'system' | 'user' | 'assistant';
+  content: string;
+}
+
+/**
+ * POST /api/ai/opencode/chat — one-shot chat against a locally-running
+ * `opencode serve`.
+ *
+ * Deliberately NOT entitlement-metered, unlike /api/ai/server/chat: this runs
+ * on the user's own machine against provider credentials opencode itself
+ * holds, so there is no centrally-borne cost for this app to bill — the same
+ * reasoning that leaves `local` unmetered (lib/ai/entitlement.ts's header).
+ */
+export async function POST(request: NextRequest) {
+  const auth = await getStalwartCredentials(request);
+  if (!auth) {
+    return NextResponse.json({ error: 'not authenticated' }, { status: 401 });
+  }
+
+  await configManager.ensureLoaded();
+  if (configManager.getAiConsoleConfig().classesEnabled.opencode === false) {
+    return NextResponse.json({ error: 'the OpenCode class is disabled by admin policy' }, { status: 403 });
+  }
+
+  const rawBody = await request.text();
+  if (rawBody.length > MAX_BODY_BYTES) {
+    return NextResponse.json({ error: 'request too large' }, { status: 413 });
+  }
+
+  let body: { model?: unknown; messages?: unknown };
+  try {
+    body = JSON.parse(rawBody);
+  } catch {
+    return NextResponse.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+
+  const model = typeof body.model === 'string' ? body.model : '';
+  const messages = Array.isArray(body.messages) ? (body.messages as ChatMessage[]) : null;
+  if (!model || !messages || messages.length === 0) {
+    return NextResponse.json({ error: 'model and messages are required' }, { status: 400 });
+  }
+
+  const found = await findOpencodeServer();
+  if (!found) {
+    return NextResponse.json(
+      { error: 'No local OpenCode server is running. The desktop app starts one automatically when the opencode CLI is installed \u2014 install it from opencode.ai, then restart VNCmail+.' },
+      { status: 503 },
+    );
+  }
+  if (!found.models.some((m) => m.ref === model)) {
+    // The picker is populated from this same list, so a mismatch means the
+    // saved model was removed/renamed in opencode since it was chosen -
+    // clearer to say so than to forward it and surface opencode's own error.
+    return NextResponse.json(
+      { error: `OpenCode no longer offers the model "${model}" \u2014 pick another in Settings.` },
+      { status: 400 },
+    );
+  }
+  const parsed = parseModelRef(model);
+  if (!parsed) {
+    return NextResponse.json({ error: `Malformed model reference "${model}"` }, { status: 400 });
+  }
+
+  // Flatten our chat-messages shape onto opencode's (system field + text
+  // parts). Every non-system message is already just the built prompt.
+  const system = messages.filter((m) => m.role === 'system').map((m) => m.content).join('\n\n') || undefined;
+  const userText = messages.filter((m) => m.role !== 'system').map((m) => m.content).join('\n\n');
+  if (!userText.trim()) {
+    return NextResponse.json({ error: 'no user content to send' }, { status: 400 });
+  }
+
+  try {
+    const result = await opencodePrompt(found.baseUrl, parsed, system, userText);
+    if (!result.ok) {
+      logger.error('opencode prompt failed', { error: result.error });
+      return NextResponse.json({ error: result.error }, { status: 502 });
+    }
+    return NextResponse.json({ answer: result.answer });
+  } catch (cause) {
+    logger.error('opencode chat failed', { error: cause instanceof Error ? cause.message : String(cause) });
+    return NextResponse.json({ error: 'OpenCode server unreachable' }, { status: 502 });
+  }
+}

app/api/ai/opencode/models/route.ts

@@ -0,0 +1,43 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { configManager } from '@/lib/admin/config-manager';
+import { findOpencodeServer } from '@/lib/ai/opencode';
+
+export const runtime = 'nodejs';
+
+/**
+ * GET /api/ai/opencode/models — models a locally-running `opencode serve`
+ * exposes. Proxied rather than fetched directly by the renderer: the desktop
+ * shell's origin is a random localhost port that changes every launch, so a
+ * direct call would need opencode's CORS allowlist updated each time.
+ *
+ * Listing is not a billable action, so a valid session is enough — no seat
+ * check (matching /api/ai/server/models).
+ */
+export async function GET(request: NextRequest) {
+  const auth = await getStalwartCredentials(request);
+  if (!auth) {
+    return NextResponse.json({ error: 'not authenticated' }, { status: 401 });
+  }
+
+  await configManager.ensureLoaded();
+  if (configManager.getAiConsoleConfig().classesEnabled.opencode === false) {
+    return NextResponse.json({ error: 'the OpenCode class is disabled by admin policy' }, { status: 403 });
+  }
+
+  const found = await findOpencodeServer();
+  if (!found) {
+    // 503 not 500: "nothing is listening" is a normal state (opencode simply
+    // isn't running), and the client turns it into setup guidance rather than
+    // an error banner.
+    return NextResponse.json(
+      { error: 'No local OpenCode server is running. The desktop app starts one automatically when the opencode CLI is installed \u2014 install it from opencode.ai, then restart VNCmail+.' },
+      { status: 503 },
+    );
+  }
+
+  return NextResponse.json(
+    { models: found.models.map((m) => ({ ref: m.ref, label: m.label })) },
+    { headers: { 'Cache-Control': 'no-store' } },
+  );
+}

app/api/ai/opencode/providers/route.ts

@@ -0,0 +1,103 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { configManager } from '@/lib/admin/config-manager';
+import {
+  findOpencodeServer, listOpencodeProviders, setOpencodeProviderKey, removeOpencodeProvider,
+} from '@/lib/ai/opencode';
+import { logger } from '@/lib/logger';
+
+export const runtime = 'nodejs';
+
+const SETUP_ERROR =
+  'No local OpenCode server is running. The desktop app starts one automatically when the opencode CLI is installed — install it from opencode.ai, then restart VNCmail+.';
+
+async function requireOpencode(request: NextRequest) {
+  const auth = await getStalwartCredentials(request);
+  if (!auth) return { error: NextResponse.json({ error: 'not authenticated' }, { status: 401 }) } as const;
+
+  await configManager.ensureLoaded();
+  if (configManager.getAiConsoleConfig().classesEnabled.opencode === false) {
+    return { error: NextResponse.json({ error: 'the OpenCode class is disabled by admin policy' }, { status: 403 }) } as const;
+  }
+
+  const found = await findOpencodeServer();
+  if (!found) return { error: NextResponse.json({ error: SETUP_ERROR }, { status: 503 }) } as const;
+  return { baseUrl: found.baseUrl } as const;
+}
+
+/**
+ * GET/PUT/DELETE /api/ai/opencode/providers — lets a user add "any LLM
+ * OpenCode supports" from inside this app, rather than only whatever was
+ * already authenticated via its own CLI. See lib/ai/opencode.ts's module
+ * note on why this only covers API-key providers for now, not OAuth ones.
+ */
+export async function GET(request: NextRequest) {
+  const result = await requireOpencode(request);
+  if ('error' in result) return result.error;
+  try {
+    const providers = await listOpencodeProviders(result.baseUrl);
+    return NextResponse.json({ providers }, { headers: { 'Cache-Control': 'no-store' } });
+  } catch (cause) {
+    logger.error('opencode providers list failed', { error: cause instanceof Error ? cause.message : String(cause) });
+    return NextResponse.json({ error: 'Could not list OpenCode providers' }, { status: 502 });
+  }
+}
+
+export async function PUT(request: NextRequest) {
+  const result = await requireOpencode(request);
+  if ('error' in result) return result.error;
+
+  let body: { providerID?: unknown; key?: unknown };
+  try {
+    body = await request.json();
+  } catch {
+    return NextResponse.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+  const providerID = typeof body.providerID === 'string' ? body.providerID.trim() : '';
+  const key = typeof body.key === 'string' ? body.key.trim() : '';
+  if (!providerID || !key) {
+    return NextResponse.json({ error: 'providerID and key are required' }, { status: 400 });
+  }
+
+  try {
+    await setOpencodeProviderKey(result.baseUrl, providerID, key);
+    // VERIFY rather than trust the 200: OpenCode accepts a bare API key for
+    // every provider (confirmed live), but does not consider every provider
+    // "connected" from that alone - Snowflake Cortex, for one real example,
+    // needs SNOWFLAKE_ACCOUNT alongside its token, and a single key field
+    // silently leaves it unconnected with no error from the PUT itself. The
+    // provider's own `env` array length does NOT predict this reliably either
+    // (Azure needs two env vars and DOES connect from one key) - the only
+    // honest source of truth is asking OpenCode again.
+    const after = await listOpencodeProviders(result.baseUrl);
+    const nowConnected = after.find((p) => p.id === providerID)?.connected === true;
+    if (!nowConnected) {
+      return NextResponse.json({
+        ok: false,
+        error: `OpenCode stored the key but does not show ${providerID} as connected — it likely needs more than one credential field (check its requirements with the opencode CLI: opencode auth login ${providerID}).`,
+      }, { status: 200 });
+    }
+    return NextResponse.json({ ok: true });
+  } catch (cause) {
+    logger.error('opencode provider auth failed', { providerID, error: cause instanceof Error ? cause.message : String(cause) });
+    return NextResponse.json({ error: cause instanceof Error ? cause.message : 'Could not add the provider' }, { status: 502 });
+  }
+}
+
+export async function DELETE(request: NextRequest) {
+  const result = await requireOpencode(request);
+  if ('error' in result) return result.error;
+
+  const providerID = request.nextUrl.searchParams.get('providerID')?.trim();
+  if (!providerID) {
+    return NextResponse.json({ error: 'providerID is required' }, { status: 400 });
+  }
+
+  try {
+    await removeOpencodeProvider(result.baseUrl, providerID);
+    return NextResponse.json({ ok: true });
+  } catch (cause) {
+    logger.error('opencode provider removal failed', { providerID, error: cause instanceof Error ? cause.message : String(cause) });
+    return NextResponse.json({ error: cause instanceof Error ? cause.message : 'Could not remove the provider' }, { status: 502 });
+  }
+}

app/api/ai/policy/route.ts

@@ -0,0 +1,60 @@
+import { NextResponse } from 'next/server';
+import { configManager } from '@/lib/admin/config-manager';
+import { logger } from '@/lib/logger';
+import { DEFAULT_AI_ENTITLEMENT, type AiPolicy } from '@/lib/ai/types';
+
+/**
+ * GET /api/ai/policy - AI Assistant policy (NOT admin-protected - users read this)
+ *
+ * `enabled` mirrors the admin FeatureGates toggle. `entitlement.classes`
+ * reflects real configuration, not a hardcoded guess: `server` only appears
+ * when AI_SERVER_BASE_URL is actually set (app/api/ai/server/* would 503
+ * otherwise) - this is enforcement point 1 (docs §10), cosmetic-only, the
+ * client hiding what it can't use; the real gate is checkAndAssignSeat() on
+ * every /api/ai/server/chat call, not this list.
+ */
+export async function GET() {
+  try {
+    await configManager.ensureLoaded();
+    const policy = configManager.getPolicy();
+    const consoleConfig = configManager.getAiConsoleConfig();
+
+    // A class must be BOTH infra-available AND not explicitly disabled by
+    // the admin console (docs/ADMIN-AI-POLICY-CONSOLE-SPEC.md §6) to reach
+    // users. Missing classesEnabled entries default to allowed, so this
+    // changes nothing until an admin actually touches the console.
+    const classAllowed = (cls: (typeof DEFAULT_AI_ENTITLEMENT.classes)[number]) => consoleConfig.classesEnabled[cls] !== false;
+    const classes: typeof DEFAULT_AI_ENTITLEMENT.classes = [];
+    if (classAllowed('local')) classes.push('local');
+    if (classAllowed('public')) classes.push('public');
+    if (process.env.AI_SERVER_BASE_URL && classAllowed('server')) classes.push('server');
+    // `opencode` is offered whenever the admin hasn't disabled it — unlike
+    // `server` there is no env var to gate on, because availability is "is a
+    // local `opencode serve` listening right now", which changes minute to
+    // minute and is answered by /api/ai/opencode/models (503 when absent).
+    // Advertising the class and letting that probe report the truth beats
+    // hiding it based on a stale check at policy-fetch time.
+    if (classAllowed('opencode')) classes.push('opencode');
+
+    const aiPolicy: AiPolicy = {
+      enabled: policy.features.aiAssistantEnabled,
+      entitlement: { ...DEFAULT_AI_ENTITLEMENT, classes },
+      publicConsentVersion: consoleConfig.consent?.version ?? null,
+      retrievalEnabled: consoleConfig.retrievalEnabled,
+      consent: consoleConfig.consent,
+      publicProviderAllowlist: consoleConfig.publicProviderAllowlist,
+      // Sanitized: {id,name,model} only. baseUrl/apiKeyEnvVar stay server-side —
+      // the client only ever refers to a preset by id (app/api/ai/public/chat
+      // resolves the rest), so there's no reason to hand a browser tab even
+      // an internal env var *name*, let alone a provider base URL.
+      publicPresets: consoleConfig.publicPresets.map((p) => ({ id: p.id, name: p.name, model: p.model })),
+    };
+
+    return NextResponse.json(aiPolicy, {
+      headers: { 'Cache-Control': 'no-store' },
+    });
+  } catch (error) {
+    logger.error('AI policy read error', { error: error instanceof Error ? error.message : 'Unknown error' });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/ai/public/chat/route.ts

@@ -0,0 +1,97 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { configManager } from '@/lib/admin/config-manager';
+import { logger } from '@/lib/logger';
+
+export const runtime = 'nodejs';
+
+const MAX_BODY_BYTES = 200 * 1024;
+
+interface ChatMessage {
+  role: 'system' | 'user' | 'assistant';
+  content: string;
+}
+
+interface OpenAiChatResponse {
+  choices?: Array<{ message?: { content?: string } }>;
+}
+
+/**
+ * POST /api/ai/public/chat — the Paperclip-style, admin-managed alternative
+ * to the personal-key `chatPublic` path (lib/ai/local-client.ts): the client
+ * sends a `presetId`, never a key. The preset (name/baseUrl/model/
+ * apiKeyEnvVar) lives in admin config (lib/ai/types.ts's PublicAiPreset);
+ * the actual secret value is read from THIS PROCESS's real environment at
+ * request time and never leaves this route — same custody model as
+ * AI_SERVER_BASE_URL, just admin-nameable per preset instead of one fixed var.
+ *
+ * Deliberately NOT entitlement-metered, same reasoning as `local`/`opencode`
+ * (lib/ai/entitlement.ts's header): this is still the `public` class, just
+ * with the org supplying the key instead of the user — no centrally-borne
+ * inference cost this app is billing for.
+ */
+export async function POST(request: NextRequest) {
+  const auth = await getStalwartCredentials(request);
+  if (!auth) {
+    return NextResponse.json({ error: 'not authenticated' }, { status: 401 });
+  }
+
+  await configManager.ensureLoaded();
+  const consoleConfig = configManager.getAiConsoleConfig();
+  if (consoleConfig.classesEnabled.public === false) {
+    return NextResponse.json({ error: 'the Public AI class is disabled by admin policy' }, { status: 403 });
+  }
+
+  const rawBody = await request.text();
+  if (rawBody.length > MAX_BODY_BYTES) {
+    return NextResponse.json({ error: 'request too large' }, { status: 413 });
+  }
+
+  let body: { presetId?: unknown; messages?: unknown };
+  try {
+    body = JSON.parse(rawBody);
+  } catch {
+    return NextResponse.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+
+  const presetId = typeof body.presetId === 'string' ? body.presetId : '';
+  const messages = Array.isArray(body.messages) ? (body.messages as ChatMessage[]) : null;
+  if (!presetId || !messages || messages.length === 0) {
+    return NextResponse.json({ error: 'presetId and messages are required' }, { status: 400 });
+  }
+
+  const preset = consoleConfig.publicPresets.find((p) => p.id === presetId);
+  if (!preset) {
+    return NextResponse.json({ error: `No such preset "${presetId}" — it may have been removed by an admin.` }, { status: 404 });
+  }
+
+  const apiKey = process.env[preset.apiKeyEnvVar];
+  if (!apiKey) {
+    return NextResponse.json(
+      { error: `Env var "${preset.apiKeyEnvVar}" is not set on the server for preset "${preset.name}" — ask an admin to provision it.` },
+      { status: 503 },
+    );
+  }
+
+  try {
+    const res = await fetch(`${preset.baseUrl.replace(/\/+$/, '')}/chat/completions`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${apiKey}` },
+      body: JSON.stringify({ model: preset.model, messages }),
+    });
+    if (!res.ok) {
+      return NextResponse.json({ error: `Provider returned ${res.status}` }, { status: 502 });
+    }
+    const data = (await res.json()) as OpenAiChatResponse;
+    const content = data.choices?.[0]?.message?.content;
+    if (!content) {
+      return NextResponse.json({ error: 'Provider returned no message content' }, { status: 502 });
+    }
+    return NextResponse.json({ answer: content });
+  } catch (cause) {
+    logger.error('public ai preset chat failed', {
+      presetId, error: cause instanceof Error ? cause.message : String(cause),
+    });
+    return NextResponse.json({ error: `Could not reach ${preset.baseUrl}` }, { status: 502 });
+  }
+}

app/api/ai/retrieve/route.ts

@@ -0,0 +1,76 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { serverSearchMail, hydrateMailRefs } from '@/lib/ai/retrieval/mail-embeddings';
+import { configManager } from '@/lib/admin/config-manager';
+import { logger } from '@/lib/logger';
+
+export const runtime = 'nodejs';
+
+const MAX_QUERY_CHARS = 512;
+const DEFAULT_LIMIT = 6;
+
+/**
+ * POST /api/ai/retrieve — the server embedding leg (docs/AI-ASSISTANT-CONCEPT.md
+ * §7 step 2). Real JMAP fetch + real Ollama embeddings + real cosine ranking
+ * (lib/ai/retrieval/mail-embeddings.ts), not a mock.
+ *
+ * ACL note (§7 step 2b): this only ever embeds/searches the *authenticated
+ * session's own* JMAP account — there is no shared-mailbox fan-out to
+ * pre-filter yet, since group accounts are still deferred entirely (matches
+ * the doc's own "shared-mailbox retrieval ships server-only" decision, which
+ * itself hasn't been reached because there's no group account to retrieve
+ * from). Nothing here can leak across accounts because nothing crosses the
+ * account boundary in the first place.
+ */
+export async function POST(request: NextRequest) {
+  const auth = await getStalwartCredentials(request);
+  if (!auth) {
+    return NextResponse.json({ error: 'not authenticated' }, { status: 401 });
+  }
+
+  if (!process.env.AI_SERVER_BASE_URL) {
+    return new NextResponse(null, { status: 404 });
+  }
+
+  // Real enforcement, not cosmetic client hiding (docs/ADMIN-AI-POLICY-CONSOLE-SPEC.md
+  // §6): an admin can disable mail-content-to-embeddings augmentation
+  // independent of disabling the `server` chat class outright.
+  await configManager.ensureLoaded();
+  if (!configManager.getAiConsoleConfig().retrievalEnabled) {
+    return NextResponse.json({ error: 'retrieval is disabled by admin policy' }, { status: 403 });
+  }
+
+  let body: { query?: unknown; limit?: unknown };
+  try {
+    body = await request.json();
+  } catch {
+    return NextResponse.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+
+  const query = typeof body.query === 'string' ? body.query.trim() : '';
+  if (!query) {
+    return NextResponse.json({ error: 'query is required' }, { status: 400 });
+  }
+  if (query.length > MAX_QUERY_CHARS) {
+    return NextResponse.json({ error: 'query too long' }, { status: 400 });
+  }
+  const limit = typeof body.limit === 'number' ? Math.min(Math.max(Math.trunc(body.limit), 1), 20) : DEFAULT_LIMIT;
+
+  try {
+    const scored = await serverSearchMail(auth.serverUrl, auth.authHeader, query, limit);
+    const chunks = await hydrateMailRefs(auth.serverUrl, auth.authHeader, scored.map((s) => s.ref));
+
+    const contextBlock = chunks
+      .map((c, i) => `[${i + 1}] Subject: ${c.title}\n${c.text}`)
+      .join('\n\n');
+
+    return NextResponse.json({
+      ok: true,
+      hits: chunks.map((c, i) => ({ ref: c.ref, title: c.title, snippet: c.text.slice(0, 200), rank: i + 1 })),
+      contextBlock,
+    }, { headers: { 'Cache-Control': 'no-store' } });
+  } catch (cause) {
+    logger.error('ai retrieve failed', { error: cause instanceof Error ? cause.message : String(cause) });
+    return NextResponse.json({ error: 'retrieval unavailable' }, { status: 502 });
+  }
+}

app/api/ai/server/chat/route.ts

@@ -0,0 +1,111 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { checkAndAssignSeat, recordUsage } from '@/lib/ai/entitlement';
+import { configManager } from '@/lib/admin/config-manager';
+import { logger } from '@/lib/logger';
+
+export const runtime = 'nodejs';
+
+const MAX_BODY_BYTES = 200 * 1024;
+
+interface ChatMessage {
+  role: 'system' | 'user' | 'assistant';
+  content: string;
+}
+
+interface OllamaChatResponse {
+  message?: { content?: string };
+  prompt_eval_count?: number;
+  eval_count?: number;
+}
+
+/**
+ * POST /api/ai/server/chat — the one real enforcement chokepoint for the
+ * `server` AI class (docs/AI-ASSISTANT-CONCEPT.md §10 point 2: "re-validates
+ * ... entitlement against live state; rejects on mismatch ... never trusts
+ * the client"). Every call re-checks the seat; nothing here is cosmetic.
+ *
+ * Retrieval already happened client-side (the same /api/offline/search leg
+ * `local`/`public` use) — this route receives the already-built prompt
+ * messages and only proxies the model call + records the metering entry
+ * that IS the billing record (lib/ai/entitlement.ts).
+ */
+export async function POST(request: NextRequest) {
+  const auth = await getStalwartCredentials(request);
+  if (!auth) {
+    return NextResponse.json({ error: 'not authenticated' }, { status: 401 });
+  }
+
+  // Real enforcement, not cosmetic client hiding (docs/ADMIN-AI-POLICY-CONSOLE-SPEC.md
+  // §6): the admin console can disable the whole `server` class even when
+  // AI_SERVER_BASE_URL stays configured (e.g. keeping infra up for staging
+  // while turning it off for users).
+  await configManager.ensureLoaded();
+  if (configManager.getAiConsoleConfig().classesEnabled.server === false) {
+    return NextResponse.json({ error: 'the server-hosted AI class is disabled by admin policy' }, { status: 403 });
+  }
+
+  const seat = await checkAndAssignSeat(auth.username);
+  if (!seat.allowed) {
+    return NextResponse.json({ error: seat.reason ?? 'not entitled' }, { status: 402 });
+  }
+
+  const rawBody = await request.text();
+  if (rawBody.length > MAX_BODY_BYTES) {
+    return NextResponse.json({ error: 'request too large' }, { status: 413 });
+  }
+
+  let body: { model?: unknown; messages?: unknown };
+  try {
+    body = JSON.parse(rawBody);
+  } catch {
+    return NextResponse.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+
+  const model = typeof body.model === 'string' ? body.model : '';
+  const messages = Array.isArray(body.messages) ? (body.messages as ChatMessage[]) : null;
+  if (!model || !messages || messages.length === 0) {
+    return NextResponse.json({ error: 'model and messages are required' }, { status: 400 });
+  }
+
+  const allowlist = configManager.getAiConsoleConfig().serverModelAllowlist;
+  if (allowlist && !allowlist.includes(model)) {
+    return NextResponse.json({ error: `model "${model}" is not on the admin allow-list` }, { status: 403 });
+  }
+
+  const baseUrl = process.env.AI_SERVER_BASE_URL;
+  if (!baseUrl) {
+    return NextResponse.json({ error: 'AI server class is not configured' }, { status: 503 });
+  }
+
+  const startedAt = Date.now();
+  try {
+    const res = await fetch(`${baseUrl.replace(/\/+$/, '')}/api/chat`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ model, messages, stream: false }),
+    });
+    if (!res.ok) {
+      return NextResponse.json({ error: `AI server returned ${res.status}` }, { status: 502 });
+    }
+    const data = (await res.json()) as OllamaChatResponse;
+    const content = data.message?.content;
+    if (!content) {
+      return NextResponse.json({ error: 'AI server returned no message content' }, { status: 502 });
+    }
+
+    await recordUsage({
+      timestamp: new Date().toISOString(),
+      username: auth.username,
+      model,
+      promptTokens: data.prompt_eval_count ?? 0,
+      completionTokens: data.eval_count ?? 0,
+      latencyMs: Date.now() - startedAt,
+    });
+
+    return NextResponse.json({ answer: content, seatJustAssigned: seat.seatJustAssigned === true });
+  } catch (cause) {
+    logger.error('ai server chat failed', { error: cause instanceof Error ? cause.message : String(cause) });
+    return NextResponse.json({ error: 'AI server unreachable' }, { status: 502 });
+  }
+}

app/api/ai/server/models/route.ts

@@ -0,0 +1,59 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { configManager } from '@/lib/admin/config-manager';
+
+export const runtime = 'nodejs';
+
+/**
+ * GET /api/ai/server/models — list models on the centrally-hosted `server`
+ * class runtime (docs/AI-ASSISTANT-CONCEPT.md §2.1: "the same self-hosted
+ * open-weight model stack as `local`... running on VNC's own infrastructure
+ * instead of the user's laptop"). Tonight, `AI_SERVER_BASE_URL` stands in for
+ * that infra with the Ollama already running on this developer's Mac — see
+ * the module comment in lib/ai/entitlement.ts. Swapping to the real
+ * EU/CH-hosted instance tomorrow is a config change, not a rewrite.
+ *
+ * Listing models is not a billable action (doc §10 point 1 — cosmetic), so
+ * this only requires a valid session, not a seat.
+ */
+export async function GET(request: NextRequest) {
+  const auth = await getStalwartCredentials(request);
+  if (!auth) {
+    return NextResponse.json({ error: 'not authenticated' }, { status: 401 });
+  }
+
+  const baseUrl = process.env.AI_SERVER_BASE_URL;
+  if (!baseUrl) {
+    return NextResponse.json({ error: 'AI server class is not configured' }, { status: 503 });
+  }
+
+  try {
+    const res = await fetch(`${baseUrl.replace(/\/+$/, '')}/api/tags`);
+    if (!res.ok) {
+      return NextResponse.json({ error: `upstream returned ${res.status}` }, { status: 502 });
+    }
+    const body = (await res.json()) as { models?: Array<{ name: string; capabilities?: string[] }> };
+    // Excludes embedding-only models (e.g. nomic-embed-text, used by
+    // lib/ai/retrieval/mail-embeddings.ts) from the *chat* picker — Ollama
+    // lists them in the same /api/tags response, but calling /api/chat with
+    // one fails outright. `capabilities` absent (older Ollama) fails open
+    // rather than hiding every model on an upgrade.
+    let chatModels = (body.models ?? []).filter((m) => !m.capabilities || m.capabilities.includes('completion'));
+
+    // Admin allow-list (docs/ADMIN-AI-POLICY-CONSOLE-SPEC.md §6). null = every
+    // completion-capable model (today's behavior, unchanged).
+    await configManager.ensureLoaded();
+    const allowlist = configManager.getAiConsoleConfig().serverModelAllowlist;
+    if (allowlist) {
+      const allowed = new Set(allowlist);
+      chatModels = chatModels.filter((m) => allowed.has(m.name));
+    }
+
+    return NextResponse.json({ models: chatModels.map((m) => m.name).filter(Boolean) });
+  } catch (cause) {
+    return NextResponse.json(
+      { error: cause instanceof Error ? cause.message : 'AI server unreachable' },
+      { status: 502 },
+    );
+  }
+}

app/api/auth/impersonate/route.ts

@@ -39,7 +39,8 @@ function impersonationCookieOptions() {
  * Master-user impersonation via signed JWT. The token carries the target
  * mailbox; Bulwark verifies the signature, resolves the configured Stalwart
  * master credentials from env, then mints the same session cookies the
- * password-login path produces. The browser is redirected to "/" and the
+ * password-login path produces. The browser is redirected to "/?impersonated=1" (see
+ * ImpersonationReconciler, GH #646) and the
  * SPA hydrates as if the user had just logged in with master@target%master.
  *
  * Returns 404 when the feature is not configured so an unconfigured
@@ -136,6 +137,6 @@ export async function GET(request: NextRequest) {
   // when running behind a reverse proxy that doesn't set X-Forwarded-Host.
   return new NextResponse(null, {
     status: 303,
-    headers: { Location: '/' },
+    headers: { Location: '/?impersonated=1' },
   });
 }

app/api/auth/session/route.ts

@@ -19,6 +19,7 @@ import { isPublicHttpUrl } from '@/lib/security/url-guard';
 import { recordLogin } from '@/lib/telemetry/login-tracker';
 import { parseJmapServers, resolveTrustedJmapUrl } from '@/lib/admin/jmap-servers';
 import { MAX_ACCOUNT_SLOTS } from '@/lib/account-utils';
+import { checkUserAuthRateLimit } from '@/lib/admin/rate-limit';
 
 function sessionCookieOptions() {
   return {
@@ -48,6 +49,15 @@ export async function POST(request: NextRequest) {
       return NextResponse.json({ error: 'Missing required fields' }, { status: 400 });
     }
 
+    const ip = request.headers.get('x-forwarded-for') || request.headers.get('x-real-ip') || 'unknown';
+    const rateLimit = checkUserAuthRateLimit(ip, username);
+    if (!rateLimit.allowed) {
+      return NextResponse.json(
+        { error: 'Too many login attempts', retryAfterMs: rateLimit.retryAfterMs },
+        { status: 429 },
+      );
+    }
+
     // Pin the upstream URL to a configured JMAP server so an unauthenticated
     // caller cannot point this route at internal hosts. We accept the global
     // `jmapServerUrl` and any entry from `jmapServers`. When neither matches,

app/api/auth/sso/start/route.ts

@@ -10,6 +10,17 @@ import { getCookieOptions } from '@/lib/oauth/cookie-config';
 import { hasSessionSecret } from '@/lib/auth/session-secret';
 import { configManager } from '@/lib/admin/config-manager';
 
+// TODO(P2.13): Wire SAML IDP integration once VNCdirectory is configured.
+// When VNCdirectory is enabled and SAML is configured (see
+// lib/admin/vncdirectory-config.ts), the SSO start flow should:
+//   1. Check isVncDirectoryEnabled() — if false, fall through to existing OAuth flow.
+//   2. Read getVncDirectoryConfig() for samlIdpUrl, samlIssuer, samlSpCert.
+//   3. Build a SAML AuthnRequest and redirect to the IdP instead of OAuth.
+//   4. The /sso/complete handler should process the SAML Response assertion,
+//      validate the signature against the SP certificate, extract the subject,
+//      and create a session.
+// Reference: docs/admin/VNCDIRECTORY.md in the VNCmail+ plan (P2.13).
+
 const SSO_PENDING_COOKIE = 'sso_pending';
 const SSO_PENDING_MAX_AGE = 300; // 5 minutes
 

app/api/auth/token/route.ts

@@ -5,6 +5,7 @@ import { refreshTokenCookieName, refreshTokenServerCookieName } from '@/lib/oaut
 import { exchangeCodeForTokens, buildOAuthParams, getMetadata, getTokenEndpoint } from '@/lib/oauth/token-exchange';
 import { getCookieOptions } from '@/lib/oauth/cookie-config';
 import { MAX_ACCOUNT_SLOTS } from '@/lib/account-utils';
+import { checkUserAuthRateLimit } from '@/lib/admin/rate-limit';
 
 function getSlot(request: NextRequest): number {
   const raw = request.nextUrl.searchParams.get('slot');
@@ -16,6 +17,15 @@ function getSlot(request: NextRequest): number {
 
 export async function POST(request: NextRequest) {
   try {
+    const ip = request.headers.get('x-forwarded-for') || request.headers.get('x-real-ip') || 'unknown';
+    const rateLimit = checkUserAuthRateLimit(ip, 'oauth-token');
+    if (!rateLimit.allowed) {
+      return NextResponse.json(
+        { error: 'Too many token requests', retryAfterMs: rateLimit.retryAfterMs },
+        { status: 429 },
+      );
+    }
+
     const { code, code_verifier, redirect_uri, slot: bodySlot, server_id: bodyServerId } = await request.json();
 
     if (!code || !code_verifier || !redirect_uri) {
@@ -82,9 +92,16 @@ export async function PUT(request: NextRequest) {
     if (!tokenResponse.ok) {
       const errorText = await tokenResponse.text();
       logger.error('Token refresh failed', { status: tokenResponse.status, error: errorText });
-      cookieStore.delete(cookieName);
-      cookieStore.delete(refreshTokenServerCookieName(slot));
-      return NextResponse.json({ error: 'Refresh failed' }, { status: 401 });
+      // Drop the refresh token only when the server definitively rejected it
+      // (invalid/expired/revoked grant). A 5xx or 429 is an outage - keeping
+      // the cookie lets the session resume once the server is back.
+      const status = tokenResponse.status;
+      if (status === 400 || status === 401 || status === 403) {
+        cookieStore.delete(cookieName);
+        cookieStore.delete(refreshTokenServerCookieName(slot));
+        return NextResponse.json({ error: 'Refresh failed' }, { status: 401 });
+      }
+      return NextResponse.json({ error: 'Token endpoint unavailable' }, { status: 503 });
     }
 
     const tokens = await tokenResponse.json();

app/api/calendar-agenda/route.ts

@@ -1,6 +1,7 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { logger } from '@/lib/logger';
 import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { fetchJmapSession, postJmap, rebaseApiUrl } from '@/lib/stalwart/jmap-api';
 import { normalizeCalendarEventLike } from '@/lib/calendar-event-normalization';
 import { expandRecurringEvents } from '@/lib/recurrence-expansion';
 import { parseISO } from 'date-fns';
@@ -32,12 +33,6 @@ const EVENT_PROPERTIES = [
   'recurrenceOverrides', 'excludedRecurrenceRule',
 ] as const;
 
-interface JmapSession {
-  apiUrl?: string;
-  primaryAccounts?: Record<string, string>;
-  capabilities?: Record<string, unknown>;
-}
-
 interface AgendaEvent {
   id: string;
   uid: string | null;
@@ -141,9 +136,9 @@ export async function POST(request: NextRequest) {
       using.push('urn:ietf:params:jmap:principals:owner');
     }
 
-    // Send method calls to the same-origin JMAP endpoint the app's passthrough
-    // uses — never to session.apiUrl's (possibly unreachable) public host.
-    const apiUrl = `${creds.serverUrl}/jmap/`;
+    // Send method calls to the session's apiUrl rebased onto serverUrl's host
+    // — never to session.apiUrl's (possibly unreachable) public host.
+    const apiUrl = rebaseApiUrl(session, creds.serverUrl) ?? `${creds.serverUrl}/jmap/`;
 
     const now = new Date();
     const horizon = new Date(now.getTime() + days * 24 * 60 * 60 * 1000);
@@ -273,45 +268,12 @@ function clampInt(value: unknown, min: number, max: number, fallback: number): n
   return Math.min(max, Math.max(min, Math.round(n)));
 }
 
-/**
- * Fetch the JMAP session from the same host as `serverUrl`. Tries Stalwart's
- * canonical /jmap/session first (no redirect), then /.well-known/jmap as a
- * fallback for other servers. Returns null if neither yields a usable session.
- */
-async function fetchJmapSession(
-  serverUrl: string,
-  authHeader: string,
-): Promise<JmapSession | null> {
-  const candidates = [`${serverUrl}/jmap/session`, `${serverUrl}/.well-known/jmap`];
-  for (const url of candidates) {
-    try {
-      const res = await fetch(url, {
-        method: 'GET',
-        headers: { Authorization: authHeader },
-        redirect: 'follow',
-      });
-      if (!res.ok) continue;
-      const session = (await res.json()) as JmapSession;
-      if (session && typeof session === 'object' && session.primaryAccounts) {
-        return session;
-      }
-    } catch {
-      // Try the next candidate (e.g. canonical path 404s on a non-Stalwart server).
-    }
-  }
-  return null;
-}
-
 async function jmapPost(
   apiUrl: string,
   authHeader: string,
   payload: unknown,
 ): Promise<unknown> {
-  const res = await fetch(apiUrl, {
-    method: 'POST',
-    headers: { Authorization: authHeader, 'Content-Type': 'application/json' },
-    body: JSON.stringify(payload),
-  });
+  const res = await postJmap(apiUrl, authHeader, JSON.stringify(payload));
   if (!res.ok) {
     throw new Error(`JMAP request failed (${res.status})`);
   }

app/api/collabora/edit/route.ts

@@ -0,0 +1,32 @@
+import { NextRequest, NextResponse } from "next/server";
+import { getCollaboraEditUrl } from "@/lib/collabora/client";
+import { logger } from "@/lib/logger";
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+
+    if (!body.fileId || !body.fileName) {
+      return NextResponse.json(
+        { error: "Missing required fields: fileId, fileName" },
+        { status: 400 }
+      );
+    }
+
+    const url = await getCollaboraEditUrl(
+      String(body.fileId),
+      String(body.fileName)
+    );
+
+    return NextResponse.json({ url });
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Unknown error";
+    logger.error("Collabora edit URL failed", { error: message });
+
+    if (message.includes("not configured")) {
+      return NextResponse.json({ error: message }, { status: 503 });
+    }
+
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}

app/api/config/route.ts

@@ -44,6 +44,17 @@ export async function GET(request: NextRequest) {
     return configManager.get<T>(key, fallback);
   };
 
+  // Whether a logo field was actually set by an operator (Branding tab,
+  // an env var, or a per-domain override) rather than left at its default -
+  // consumed by resolveThemeLogo() so an explicit choice here wins over the
+  // active theme's own built-in logo, instead of being silently shadowed by
+  // it. See lib/theme-logo.ts.
+  const configSources = configManager.getAllWithSources();
+  const isLogoOverridden = (key: BrandingOverrideKey): boolean =>
+    typeof domainOverrides[key] === 'string' && domainOverrides[key]!.length > 0
+      ? true
+      : configSources[key]?.source !== 'default';
+
   const appName =
     branded<string>('appName', '') || process.env.NEXT_PUBLIC_APP_NAME || 'Webmail';
   const jmapServerUrl = configManager.get<string>('jmapServerUrl') || process.env.NEXT_PUBLIC_JMAP_SERVER_URL || '';
@@ -68,12 +79,22 @@ export async function GET(request: NextRequest) {
       faviconUrl: branded<string>('faviconUrl', '/branding/Bulwark_Favicon.svg'),
       appLogoLightUrl: branded<string>('appLogoLightUrl', ''),
       appLogoDarkUrl: branded<string>('appLogoDarkUrl', ''),
+      appLogoLightUrlIsCustom: isLogoOverridden('appLogoLightUrl'),
+      appLogoDarkUrlIsCustom: isLogoOverridden('appLogoDarkUrl'),
       loginLogoLightUrl: branded<string>('loginLogoLightUrl', '/branding/Bulwark_Logo_Color.svg'),
       loginLogoDarkUrl: branded<string>('loginLogoDarkUrl', '/branding/Bulwark_Logo_White.svg'),
+      loginLogoLightUrlIsCustom: isLogoOverridden('loginLogoLightUrl'),
+      loginLogoDarkUrlIsCustom: isLogoOverridden('loginLogoDarkUrl'),
       loginCompanyName: branded<string>('loginCompanyName', ''),
       loginImprintUrl: branded<string>('loginImprintUrl', ''),
       loginPrivacyPolicyUrl: branded<string>('loginPrivacyPolicyUrl', ''),
       loginWebsiteUrl: branded<string>('loginWebsiteUrl', ''),
+      loginLogoMaxHeight: configManager.get<string>('loginLogoMaxHeight', ''),
+      loginLogoMaxWidth: configManager.get<string>('loginLogoMaxWidth', ''),
+      loginShowHeading: configManager.get<boolean>('loginShowHeading', true),
+      loginShowSubtitle: configManager.get<boolean>('loginShowSubtitle', true),
+      loginShowTotp: configManager.get<boolean>('loginShowTotp', true),
+      loginShowVersion: configManager.get<boolean>('loginShowVersion', true),
       demoMode: configManager.get<boolean>('demoMode', false),
       allowCustomJmapEndpoint: configManager.get<boolean>('allowCustomJmapEndpoint', false),
       jmapServers: redactJmapServers(parseJmapServers(configManager.get<unknown>('jmapServers', []))),

app/api/offline/mail/route.ts

@@ -0,0 +1,87 @@
+// GET /api/offline/mail?kind=mailboxes|list|message - the OFFLINE READ SURFACE.
+//
+// THIS ROUTE MUST NEVER MAKE A NETWORK CALL. That is the whole feature: it is
+// consulted precisely when the backend is unreachable, so a JMAP session fetch to
+// learn the account id would fail for the exact reason the route was called. The
+// account is resolved from the request's own encrypted `jmap_stalwart_ctx` cookie
+// (a local decrypt) and from the account ids the store already holds rows for.
+//
+// It is a FALLBACK, not a cache in front of the server - see `read.ts`'s header
+// for the coherence rules that depend on that, and `lib/offline-fallback-client.ts`
+// for the one place that decides a read has genuinely failed.
+import { NextRequest, NextResponse } from 'next/server';
+import {
+  readEnvelopePage, readMailboxes, readMessage,
+} from '@/lib/offline-replica/read';
+import {
+  resolveIndexSession, resolveReadAccountId, withReplica,
+} from '@/lib/offline-replica/engine';
+import { gateReplicaRoute, NO_STORE, replicaErrorResponse } from '@/lib/offline-replica/route-gate';
+
+export const runtime = 'nodejs';
+export const dynamic = 'force-dynamic';
+
+const MAX_LIMIT = 200;
+
+export async function GET(request: NextRequest) {
+  const gated = gateReplicaRoute();
+  if (gated) return gated;
+
+  const params = request.nextUrl.searchParams;
+  const kind = params.get('kind') ?? 'mailboxes';
+  if (kind !== 'mailboxes' && kind !== 'list' && kind !== 'message') {
+    return NextResponse.json({ error: 'kind must be mailboxes, list or message' }, { status: 400 });
+  }
+
+  try {
+    const session = await resolveIndexSession(request);
+    const payload = await withReplica(session.accountId, (store) => {
+      const jmapAccountId = resolveReadAccountId(store, params.get('jmapAccountId'));
+      if (!jmapAccountId) {
+        // Nothing synced yet for this account. Not an error - the caller falls
+        // back to whatever it would have shown without a replica.
+        return { empty: true as const };
+      }
+
+      if (kind === 'mailboxes') {
+        return { empty: false as const, jmapAccountId, mailboxes: readMailboxes(store, jmapAccountId) };
+      }
+
+      if (kind === 'list') {
+        const rawLimit = Number(params.get('limit') ?? '50');
+        const limit = Number.isFinite(rawLimit)
+          ? Math.min(Math.max(Math.trunc(rawLimit), 1), MAX_LIMIT)
+          : 50;
+        const rawOffset = Number(params.get('offset') ?? '0');
+        const offset = Number.isFinite(rawOffset) ? Math.max(Math.trunc(rawOffset), 0) : 0;
+        // An absent mailboxId means "everything", which is what the unified views
+        // ask for; an empty string is a caller bug and must not silently widen.
+        const mailboxParam = params.get('mailboxId');
+        const mailboxId = mailboxParam === null ? null : mailboxParam;
+        if (mailboxId === '') {
+          return { empty: true as const };
+        }
+        const page = readEnvelopePage(store, jmapAccountId, mailboxId, limit, offset);
+        return { empty: false as const, jmapAccountId, ...page };
+      }
+
+      const id = params.get('id');
+      if (!id || id.length > 256) return { empty: true as const };
+      const message = readMessage(store, jmapAccountId, id);
+      if (!message) return { empty: false as const, jmapAccountId, email: null, hasBody: false };
+      return {
+        empty: false as const,
+        jmapAccountId,
+        email: message.email,
+        hasBody: message.hasBody,
+      };
+    });
+
+    if (payload.empty) {
+      return NextResponse.json({ ok: true, available: false }, { headers: NO_STORE });
+    }
+    return NextResponse.json({ ok: true, available: true, ...payload }, { headers: NO_STORE });
+  } catch (error) {
+    return replicaErrorResponse(error, 'offline read');
+  }
+}

app/api/offline/reindex/route.ts

@@ -0,0 +1,114 @@
+// POST /api/offline/reindex - write mail/calendar/contacts/files into the
+// encrypted local search index for the calling session's account.
+//
+// The PRIMARY caller is the renderer's live JMAP push handler: when a
+// StateChange arrives it posts the ids that changed, so indexing is reactive to
+// each delivery rather than periodic. `{ catchUp: true }` (no ids) is the
+// fallback used at app launch to backfill whatever changed while the app was
+// closed.
+//
+// GATED: returns 404 unless VNCMAIL_DESKTOP_STORE_DIR is set, which only
+// electron/main.ts does. The same standalone server artifact runs in the
+// multi-tenant production Docker image, where this feature must not exist at
+// all - 404 rather than 403 so nothing learns the route is there.
+import { NextRequest, NextResponse } from 'next/server';
+import { logger } from '@/lib/logger';
+import { isSqlcipherAvailable } from '@/lib/mail-index/binding';
+import { hasKeyChannel, IndexKeyError } from '@/lib/mail-index/key';
+import { getStoreDir } from '@/lib/mail-index/paths';
+import {
+  IndexSessionError, MAX_IDS_PER_CALL, normalizeWindowDays, resolveIndexSession, runIndex,
+  type IndexRequest,
+} from '@/lib/mail-index/reindex';
+import { CONTENT_TYPES, isContentType, type ContentType } from '@/lib/mail-index/store';
+import { JmapIndexError } from '@/lib/mail-index/jmap';
+
+export const runtime = 'nodejs';
+export const dynamic = 'force-dynamic';
+
+function parseIdMap(raw: unknown): Partial<Record<ContentType, string[]>> | undefined {
+  if (!raw || typeof raw !== 'object' || Array.isArray(raw)) return undefined;
+  const out: Partial<Record<ContentType, string[]>> = {};
+  for (const [key, value] of Object.entries(raw as Record<string, unknown>)) {
+    if (!isContentType(key) || !Array.isArray(value)) continue;
+    const ids = value
+      .filter((v): v is string => typeof v === 'string' && v.length > 0 && v.length <= 256)
+      .slice(0, MAX_IDS_PER_CALL);
+    if (ids.length > 0) out[key] = ids;
+  }
+  return Object.keys(out).length > 0 ? out : undefined;
+}
+
+export async function POST(request: NextRequest) {
+  if (!getStoreDir()) {
+    return new NextResponse(null, { status: 404 });
+  }
+  if (!hasKeyChannel()) {
+    return NextResponse.json(
+      { error: 'The local index has no key channel in this process.', code: 'no-key-channel' },
+      { status: 503 },
+    );
+  }
+  if (!isSqlcipherAvailable()) {
+    // The native binding is an optionalDependency, so "not installed" is a
+    // normal state on platforms without a prebuild - not an error to log loudly.
+    return NextResponse.json(
+      { error: 'Encrypted local index is unavailable on this platform.', code: 'no-binding' },
+      { status: 503 },
+    );
+  }
+
+  let body: Record<string, unknown> = {};
+  try {
+    const text = await request.text();
+    if (text.trim()) body = JSON.parse(text) as Record<string, unknown>;
+  } catch {
+    return NextResponse.json({ error: 'Malformed JSON body' }, { status: 400 });
+  }
+
+  const rawTypes = Array.isArray(body.types) ? body.types.filter(isContentType) : [];
+  const req: IndexRequest = {
+    types: rawTypes.length > 0 ? rawTypes : undefined,
+    ids: parseIdMap(body.ids),
+    removed: parseIdMap(body.removed),
+    // Pruning is a catch-up concern; a single-delivery call shouldn't scan.
+    prune: body.catchUp === true,
+    // `undefined` (absent) means "use the default"; an explicit null means
+    // keep everything. normalizeWindowDays() in runIndex clamps anything
+    // unexpected, since this value drives deletion.
+    windowDays: body.windowDays === undefined ? undefined : normalizeWindowDays(body.windowDays),
+  };
+
+  try {
+    const session = await resolveIndexSession(request);
+    const result = await runIndex(session, req);
+    return NextResponse.json(
+      {
+        ok: true,
+        written: result.written,
+        skipped: result.skipped,
+        errors: result.errors,
+        durationMs: result.durationMs,
+        types: CONTENT_TYPES,
+      },
+      { headers: { 'Cache-Control': 'no-store' } },
+    );
+  } catch (error) {
+    if (error instanceof IndexSessionError) {
+      return NextResponse.json({ error: error.message }, { status: error.status });
+    }
+    if (error instanceof JmapIndexError) {
+      return NextResponse.json({ error: error.message }, { status: error.status });
+    }
+    if (error instanceof IndexKeyError) {
+      // no-secure-storage is the Linux-without-a-keyring refusal: a real,
+      // expected outcome with a user-facing explanation, not a server fault.
+      const status = error.code === 'no-secure-storage' ? 503 : 500;
+      return NextResponse.json({ error: error.message, code: error.code }, { status });
+    }
+    logger.error('mail-index reindex failed', {
+      error: error instanceof Error ? error.message : String(error),
+    });
+    return NextResponse.json({ error: 'Reindex failed' }, { status: 500 });
+  }
+}

app/api/offline/search/route.ts

@@ -0,0 +1,149 @@
+// GET /api/offline/search?q=...&types=mail,calendar&limit=20
+//
+// THE RETRIEVAL SURFACE. This is what an AI/RAG feature calls to gather
+// relevant context from the user's own mail, calendar, contacts and files
+// before prompting a model - hence the `snippet` on every hit and the
+// `contextBlock` convenience field, which is the same information already
+// flattened into text a prompt can carry directly.
+//
+// Read-only: it never touches the network and never writes. Gated identically
+// to the reindex route.
+import { NextRequest, NextResponse } from 'next/server';
+import { logger } from '@/lib/logger';
+import { isSqlcipherAvailable } from '@/lib/mail-index/binding';
+import { hasKeyChannel, IndexKeyError, withIndexKey } from '@/lib/mail-index/key';
+import { getStoreDir } from '@/lib/mail-index/paths';
+import { IndexSessionError, resolveIndexSession } from '@/lib/mail-index/reindex';
+import {
+  isContentType, MailIndex, MailIndexUnavailableError, type ContentType, type SearchHit,
+} from '@/lib/mail-index/store';
+import { detectRecencyIntent } from '@/lib/mail-index/recency';
+
+export const runtime = 'nodejs';
+export const dynamic = 'force-dynamic';
+
+/**
+ * One hit as a plain text block, ready to be concatenated into a prompt.
+ * Kept server-side so every caller (a chat feature, a future agent, a test)
+ * formats context the same way rather than each inventing its own.
+ */
+function toContextBlock(hit: SearchHit): string {
+  const label: Record<ContentType, string> = {
+    mail: 'EMAIL', calendar: 'CALENDAR EVENT', contact: 'CONTACT', file: 'FILE',
+  };
+  const lines = [`[${label[hit.contentType]}] ${hit.title}`];
+  if (hit.occurredAt) lines.push(`Date: ${hit.occurredAt}`);
+  if (hit.people) lines.push(`People: ${hit.people}`);
+  const path = hit.metadata?.path;
+  if (typeof path === 'string' && path) lines.push(`Path: ${path}`);
+  if (hit.snippet) lines.push(`Excerpt: ${hit.snippet}`);
+  return lines.join('\n');
+}
+
+export async function GET(request: NextRequest) {
+  if (!getStoreDir()) {
+    return new NextResponse(null, { status: 404 });
+  }
+  if (!hasKeyChannel() || !isSqlcipherAvailable()) {
+    return NextResponse.json(
+      { error: 'Encrypted local index is unavailable in this process.', code: 'unavailable' },
+      { status: 503 },
+    );
+  }
+
+  const params = request.nextUrl.searchParams;
+  const query = (params.get('q') ?? '').trim();
+  const wantStats = params.get('stats') === 'true';
+
+  if (!query && !wantStats) {
+    return NextResponse.json({ error: 'Missing q parameter' }, { status: 400 });
+  }
+  if (query.length > 512) {
+    return NextResponse.json({ error: 'Query too long' }, { status: 400 });
+  }
+
+  const types = (params.get('types') ?? '')
+    .split(',')
+    .map((t) => t.trim())
+    .filter(isContentType);
+
+  const limitRaw = Number(params.get('limit') ?? '20');
+  const limit = Number.isFinite(limitRaw) ? Math.min(Math.max(Math.trunc(limitRaw), 1), 100) : 20;
+
+  try {
+    const session = await resolveIndexSession(request);
+    const storeDir = getStoreDir();
+    if (!storeDir) return new NextResponse(null, { status: 404 });
+
+    const payload = await withIndexKey(session.accountId, (key) => {
+      const index = MailIndex.open({ storeDir, accountId: session.accountId, key });
+      try {
+        const stats = index.stats();
+        if (!query) return { hits: [] as SearchHit[], stats };
+        // 'any': this route is the AI/RAG retrieval surface (see module
+        // header) - its one real caller sends natural-language questions,
+        // not deliberate search-box keywords, so strict AND-every-token
+        // matching (the default) drops nearly all of them. See
+        // toFtsMatchQueryAny's docstring for the confirmed-live failure.
+        const keywordHits = index.search({ query, types, limit, mode: 'any' });
+
+        // RECENCY leg. Keyword search structurally cannot answer "the last
+        // mail" or "everything from July" (see lib/mail-index/recency.ts), so
+        // when the question is really about time, add a date-ordered slice.
+        // ADDED to the keyword hits rather than replacing them: "what did the
+        // last mail from Anna say" is both a time question and a content one.
+        const intent = detectRecencyIntent(query);
+        if (!intent) {
+          return { hits: keywordHits, stats: wantStats ? stats : undefined };
+        }
+        const recentHits = index.recent({
+          types, limit: Math.min(intent.limit, limit * 3), since: intent.since, until: intent.until,
+        });
+        const seen = new Set(keywordHits.map((h) => `${h.contentType}:${h.id}`));
+        const merged = [...keywordHits];
+        for (const hit of recentHits) {
+          const key = `${hit.contentType}:${hit.id}`;
+          if (seen.has(key)) continue;
+          seen.add(key);
+          merged.push(hit);
+        }
+        return { hits: merged, stats: wantStats ? stats : undefined, recency: intent };
+      } finally {
+        index.close();
+      }
+    });
+
+    return NextResponse.json(
+      {
+        ok: true,
+        query,
+        types: types.length > 0 ? types : 'all',
+        count: payload.hits.length,
+        hits: payload.hits,
+        // Everything a prompt needs, pre-joined in rank order.
+        contextBlock: payload.hits.map(toContextBlock).join('\n\n---\n\n'),
+        ...(payload.stats ? { stats: payload.stats } : {}),
+        // Present when the question was read as a time question — lets the
+        // client say "these are the newest N" instead of implying relevance
+        // ranking it did not do.
+        ...(payload.recency ? { recency: payload.recency } : {}),
+      },
+      { headers: { 'Cache-Control': 'no-store' } },
+    );
+  } catch (error) {
+    if (error instanceof IndexSessionError) {
+      return NextResponse.json({ error: error.message }, { status: error.status });
+    }
+    if (error instanceof IndexKeyError) {
+      const status = error.code === 'no-secure-storage' ? 503 : 500;
+      return NextResponse.json({ error: error.message, code: error.code }, { status });
+    }
+    if (error instanceof MailIndexUnavailableError) {
+      return NextResponse.json({ error: error.message, code: 'unavailable' }, { status: 503 });
+    }
+    logger.error('mail-index search failed', {
+      error: error instanceof Error ? error.message : String(error),
+    });
+    return NextResponse.json({ error: 'Search failed' }, { status: 500 });
+  }
+}

app/api/offline/status/route.ts

@@ -0,0 +1,104 @@
+// GET    /api/offline/status - size, freshness and retention policy, for Settings.
+// PUT    /api/offline/status - update the retention policy.
+// DELETE /api/offline/status - purge the replica.
+//
+// The POLICY LIVES IN THE ENCRYPTED STORE, not in renderer localStorage. The
+// design review's H1 was that a server-side engine cannot read a renderer-only
+// setting; keeping the policy server-side means the retention pass always has the
+// value it needs, while the DECISION TO SYNC AT ALL stays with the renderer, so
+// nothing is ever materialised for an account that never opted in.
+//
+// Like every read here, GET makes no network call: an offline user must still be
+// able to see what they have and free the space.
+import { NextRequest, NextResponse } from 'next/server';
+import { clampPolicy, POLICY_LIMITS, type RetentionPolicy } from '@/lib/offline-replica/store';
+import { resolveIndexSession, resolveReadAccountId, withReplica } from '@/lib/offline-replica/engine';
+import { gateReplicaRoute, NO_STORE, replicaErrorResponse } from '@/lib/offline-replica/route-gate';
+
+export const runtime = 'nodejs';
+export const dynamic = 'force-dynamic';
+
+export async function GET(request: NextRequest) {
+  const gated = gateReplicaRoute();
+  if (gated) return gated;
+  try {
+    const session = await resolveIndexSession(request);
+    const payload = await withReplica(session.accountId, (store) => {
+      const jmapAccountId = resolveReadAccountId(store, null);
+      const policy = store.getPolicy();
+      const flags = store.getFlags(Date.now());
+      if (!jmapAccountId) {
+        return {
+          policy,
+          limits: POLICY_LIMITS,
+          synced: false,
+          stats: null,
+          coveragePhase: 'never-run',
+          resyncRequired: flags.resyncRequired,
+          lastCycleAt: flags.lastCycleAt ?? null,
+          lastCycleOk: flags.lastCycleOk ?? null,
+        };
+      }
+      return {
+        policy,
+        limits: POLICY_LIMITS,
+        synced: true,
+        stats: store.stats(jmapAccountId),
+        coveragePhase: store.getCoverage(jmapAccountId)?.phase ?? 'never-run',
+        coveredFrom: store.getCoverage(jmapAccountId)?.coveredFrom ?? null,
+        resyncRequired: flags.resyncRequired,
+        lastCycleAt: flags.lastCycleAt ?? null,
+        lastCycleOk: flags.lastCycleOk ?? null,
+        lastCycleError: flags.lastCycleError ?? null,
+      };
+    });
+    return NextResponse.json({ ok: true, ...payload }, { headers: NO_STORE });
+  } catch (error) {
+    return replicaErrorResponse(error, 'offline status');
+  }
+}
+
+export async function PUT(request: NextRequest) {
+  const gated = gateReplicaRoute();
+  if (gated) return gated;
+
+  let body: Record<string, unknown> = {};
+  try {
+    const text = await request.text();
+    if (text.trim()) body = JSON.parse(text) as Record<string, unknown>;
+  } catch {
+    return NextResponse.json({ error: 'Malformed JSON body' }, { status: 400 });
+  }
+
+  const policy = clampPolicy(body as Partial<RetentionPolicy>);
+  try {
+    const session = await resolveIndexSession(request);
+    await withReplica(session.accountId, (store) => {
+      store.transaction(() => { store.setPolicy(policy); });
+    });
+    // The cycle applies it: a widen re-enters coverage scanning, a narrow evicts,
+    // and the clock guard is told this was INTENT rather than a glitch by the
+    // `lastEnvelopeDays` it compares against.
+    return NextResponse.json({ ok: true, policy }, { headers: NO_STORE });
+  } catch (error) {
+    return replicaErrorResponse(error, 'offline policy update');
+  }
+}
+
+export async function DELETE(request: NextRequest) {
+  const gated = gateReplicaRoute();
+  if (gated) return gated;
+  try {
+    const session = await resolveIndexSession(request);
+    await withReplica(session.accountId, (store) => {
+      // ALL OF IT, cursors included. A record wipe that leaves cursors behind is
+      // the one state no amount of syncing repairs: `/changes` structurally cannot
+      // re-deliver mail that already existed when the cursor was captured, so the
+      // next cycle would advance a live cursor over an empty store forever.
+      store.transaction(() => { store.purgeAll(); });
+    });
+    return NextResponse.json({ ok: true, purged: true }, { headers: NO_STORE });
+  } catch (error) {
+    return replicaErrorResponse(error, 'offline purge');
+  }
+}

app/api/offline/sync/route.ts

@@ -0,0 +1,49 @@
+// POST /api/offline/sync - run ONE bounded delta-sync cycle for the calling
+// session's account.
+//
+// The renderer drives this: once at launch (catch-up for whatever changed while
+// the app was closed, for which no push event was ever delivered) and on each
+// JMAP `StateChange` from the live push connection. There is no background worker
+// and no resident credential - see `lib/offline-replica/sync.ts`'s header for why
+// that architecture choice keeps most of the original design review's critical
+// findings out of scope entirely.
+//
+// A cycle is BOUNDED. `unfinishedWork: true` means "call again", and the renderer
+// chains with a cap; it never means an error.
+import { NextRequest, NextResponse } from 'next/server';
+import { clampPolicy, type RetentionPolicy } from '@/lib/offline-replica/store';
+import { resolveIndexSession, syncAccount } from '@/lib/offline-replica/engine';
+import { gateReplicaRoute, NO_STORE, replicaErrorResponse } from '@/lib/offline-replica/route-gate';
+
+export const runtime = 'nodejs';
+export const dynamic = 'force-dynamic';
+
+export async function POST(request: NextRequest) {
+  const gated = gateReplicaRoute();
+  if (gated) return gated;
+
+  let body: Record<string, unknown> = {};
+  try {
+    const text = await request.text();
+    if (text.trim()) body = JSON.parse(text) as Record<string, unknown>;
+  } catch {
+    return NextResponse.json({ error: 'Malformed JSON body' }, { status: 400 });
+  }
+
+  const rawPolicy = body.policy;
+  const policy: RetentionPolicy | undefined =
+    rawPolicy && typeof rawPolicy === 'object' && !Array.isArray(rawPolicy)
+      ? clampPolicy(rawPolicy as Partial<RetentionPolicy>)
+      : undefined;
+
+  try {
+    const session = await resolveIndexSession(request);
+    const report = await syncAccount(session, {
+      policy,
+      forceResync: body.forceResync === true,
+    });
+    return NextResponse.json({ ok: report.ok, report }, { headers: NO_STORE });
+  } catch (error) {
+    return replicaErrorResponse(error, 'sync');
+  }
+}

app/api/pwa-icon/[size]/route.ts

@@ -59,10 +59,12 @@ export async function GET(
     domainOverrides.pwaIconUrl ||
     domainOverrides.faviconUrl ||
     (sources.pwaIconUrl?.source !== 'default' ? (sources.pwaIconUrl?.value as string) : '') ||
-    (sources.faviconUrl?.source !== 'default' ? (sources.faviconUrl?.value as string) : '');
-  if (!iconUrl) {
-    return new NextResponse('No PWA icon configured', { status: 404 });
-  }
+    (sources.faviconUrl?.source !== 'default' ? (sources.faviconUrl?.value as string) : '') ||
+    // Fall back to the built-in default so this endpoint ALWAYS returns an app
+    // icon (custom if configured, else the bundled default). This lets callers
+    // that can't run the custom-vs-default check themselves - notably the
+    // service worker's notifications - use a single stable URL.
+    `/icon-${size}x${size}.png`;
 
   const pngHeaders = {
     'Content-Type': 'image/png',

app/api/resources/[id]/availability/route.ts

@@ -0,0 +1,31 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { logger } from '@/lib/logger';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { checkAvailability } from '@/lib/resources/client';
+
+export async function GET(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> },
+) {
+  try {
+    const creds = await getStalwartCredentials(request);
+    if (!creds) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { id } = await params;
+    const { searchParams } = new URL(request.url);
+    const start = searchParams.get('start');
+    const end = searchParams.get('end');
+
+    if (!start || !end) {
+      return NextResponse.json({ error: 'start and end query parameters are required' }, { status: 400 });
+    }
+
+    const result = await checkAvailability(id, start, end);
+    return NextResponse.json(result);
+  } catch (error) {
+    logger.error('Resource availability error', { error: error instanceof Error ? error.message : 'Unknown' });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/resources/[id]/book/[bookingId]/route.ts

@@ -0,0 +1,24 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { logger } from '@/lib/logger';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { cancelBooking } from '@/lib/resources/client';
+
+export async function DELETE(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string; bookingId: string }> },
+) {
+  try {
+    const creds = await getStalwartCredentials(request);
+    if (!creds) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { bookingId } = await params;
+    await cancelBooking(bookingId);
+
+    return NextResponse.json({ ok: true });
+  } catch (error) {
+    logger.error('Resource booking cancel error', { error: error instanceof Error ? error.message : 'Unknown' });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/resources/[id]/book/route.ts

@@ -0,0 +1,40 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { logger } from '@/lib/logger';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { bookResource, checkAvailability, getResource } from '@/lib/resources/client';
+
+export async function POST(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> },
+) {
+  try {
+    const creds = await getStalwartCredentials(request);
+    if (!creds) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { id } = await params;
+    const body = await request.json();
+    const { start, end, eventId } = body;
+
+    if (!start || !end) {
+      return NextResponse.json({ error: 'start and end are required' }, { status: 400 });
+    }
+
+    const resource = await getResource(id);
+    if (!resource) {
+      return NextResponse.json({ error: 'Resource not found' }, { status: 404 });
+    }
+
+    const { available, conflicts } = await checkAvailability(id, start, end);
+    if (!available) {
+      return NextResponse.json({ error: 'Resource is not available for the requested time', conflicts }, { status: 409 });
+    }
+
+    const booking = await bookResource(id, start, end, creds.username, eventId);
+    return NextResponse.json({ booking }, { status: 201 });
+  } catch (error) {
+    logger.error('Resource booking error', { error: error instanceof Error ? error.message : 'Unknown' });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/resources/[id]/route.ts

@@ -0,0 +1,27 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { logger } from '@/lib/logger';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { getResource } from '@/lib/resources/client';
+
+export async function GET(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> },
+) {
+  try {
+    const creds = await getStalwartCredentials(request);
+    if (!creds) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { id } = await params;
+    const resource = await getResource(id);
+    if (!resource) {
+      return NextResponse.json({ error: 'Resource not found' }, { status: 404 });
+    }
+
+    return NextResponse.json({ resource });
+  } catch (error) {
+    logger.error('Resource get error', { error: error instanceof Error ? error.message : 'Unknown' });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/resources/route.ts

@@ -0,0 +1,59 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { logger } from '@/lib/logger';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { listResources, createResource, getBookingsForEvent } from '@/lib/resources/client';
+
+export async function GET(request: NextRequest) {
+  try {
+    const creds = await getStalwartCredentials(request);
+    if (!creds) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { searchParams } = new URL(request.url);
+    const type = searchParams.get('type') || undefined;
+    const eventId = searchParams.get('eventId') || undefined;
+
+    if (eventId) {
+      const bookings = await getBookingsForEvent(eventId);
+      return NextResponse.json({ bookings });
+    }
+
+    const resources = await listResources(creds.username, type);
+    return NextResponse.json({ resources });
+  } catch (error) {
+    logger.error('Resources list error', { error: error instanceof Error ? error.message : 'Unknown' });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}
+
+export async function POST(request: NextRequest) {
+  try {
+    const creds = await getStalwartCredentials(request);
+    if (!creds) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const body = await request.json();
+    const { name, type, location, capacity, description, contactEmail, metadata } = body;
+
+    if (!name || !type || !['room', 'vehicle', 'equipment', 'other'].includes(type)) {
+      return NextResponse.json({ error: 'Name and valid type are required' }, { status: 400 });
+    }
+
+    const resource = await createResource(creds.username, {
+      name,
+      type,
+      location,
+      capacity: capacity ? Number(capacity) : undefined,
+      description,
+      contactEmail,
+      metadata,
+    });
+
+    return NextResponse.json({ resource }, { status: 201 });
+  } catch (error) {
+    logger.error('Resource create error', { error: error instanceof Error ? error.message : 'Unknown' });
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

app/api/sharing/route.ts

@@ -0,0 +1,361 @@
+import type { NextRequest } from "next/server";
+
+type JmapMethodCall = [string, Record<string, unknown>, string];
+
+async function jmapRequest(
+  serverUrl: string,
+  authHeader: string,
+  methodCalls: JmapMethodCall[],
+  using?: string[],
+) {
+  const sessionResp = await fetch(`${serverUrl}/.well-known/jmap`, {
+    headers: { Authorization: authHeader },
+  });
+  if (!sessionResp.ok) {
+    return { error: `Session fetch failed: ${sessionResp.status}` };
+  }
+  const session = await sessionResp.json();
+  const apiUrl = session.apiUrl;
+  if (!apiUrl) {
+    return { error: "No API URL in JMAP session" };
+  }
+
+  const body = {
+    using: using || [
+      "urn:ietf:params:jmap:core",
+      "urn:ietf:params:jmap:mail",
+      "urn:ietf:params:jmap:principals",
+    ],
+    methodCalls,
+  };
+
+  const resp = await fetch(apiUrl, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: authHeader,
+    },
+    body: JSON.stringify(body),
+  });
+
+  if (!resp.ok) {
+    return { error: `JMAP request failed: ${resp.status}` };
+  }
+
+  return await resp.json();
+}
+
+export async function GET(request: NextRequest) {
+  const { searchParams } = new URL(request.url);
+  const action = searchParams.get("action");
+  const serverUrl = request.headers.get("X-JMAP-Server-Url");
+  const authHeader = request.headers.get("Authorization");
+
+  if (!serverUrl || !authHeader) {
+    return Response.json(
+      { error: "Missing server URL or auth header" },
+      { status: 400 },
+    );
+  }
+
+  if (action !== "principals") {
+    return Response.json(
+      { error: "Invalid action" },
+      { status: 400 },
+    );
+  }
+
+  const result = await jmapRequest(serverUrl, authHeader, [
+    ["Principal/query", { accountId: "" }, "0"],
+    ["Principal/get", {
+      accountId: "",
+      "#ids": {
+        resultOf: "0",
+        name: "Principal/query",
+        path: "/ids",
+      },
+    }, "1"],
+  ]);
+
+  if ("error" in result) {
+    return Response.json(result, { status: 502 });
+  }
+
+  const getResp = (result as Record<string, unknown>).methodResponses as Array<[string, Record<string, unknown>, string]> | undefined;
+  const principals = getResp?.find((r) => r[0] === "Principal/get")?.[1]
+    ?.list ?? [];
+
+  return Response.json({ principals });
+}
+
+export async function POST(request: NextRequest) {
+  const serverUrl = request.headers.get("X-JMAP-Server-Url");
+  const authHeader = request.headers.get("Authorization");
+
+  if (!serverUrl || !authHeader) {
+    return Response.json(
+      { error: "Missing server URL or auth header" },
+      { status: 400 },
+    );
+  }
+
+  let body: Record<string, unknown>;
+  try {
+    body = await request.json();
+  } catch {
+    return Response.json({ error: "Invalid JSON body" }, { status: 400 });
+  }
+
+  const { kind, resourceId, principalId, role } = body;
+
+  if (!kind || !resourceId || !principalId) {
+    return Response.json(
+      { error: "Missing required fields: kind, resourceId, principalId" },
+      { status: 400 },
+    );
+  }
+
+  let method: string;
+  let shareProperty: string;
+
+  switch (kind) {
+    case "mailbox":
+      method = "Mailbox/set";
+      shareProperty = "shareWith";
+      break;
+    case "calendar":
+      method = "Calendar/set";
+      shareProperty = "shareWith";
+      break;
+    case "addressBook":
+      method = "AddressBook/set";
+      shareProperty = "shareWith";
+      break;
+    case "file":
+      method = "FileNode/set";
+      shareProperty = "shareWith";
+      break;
+    default:
+      return Response.json(
+        { error: `Invalid kind: ${kind}` },
+        { status: 400 },
+      );
+  }
+
+  const patchValue = role === null ? null : buildRights(kind as string, role as string);
+
+  const methodCalls: JmapMethodCall[] = [
+    [
+      method,
+      {
+        accountId: "",
+        update: {
+          [resourceId as string]: {
+            [`${shareProperty}/${principalId}`]: patchValue,
+          },
+        },
+      },
+      "0",
+    ],
+  ];
+
+  const result = await jmapRequest(
+    serverUrl,
+    authHeader,
+    methodCalls,
+  );
+
+  if ("error" in result) {
+    return Response.json(result, { status: 502 });
+  }
+
+  const responses = (result as Record<string, unknown>).methodResponses as Array<[string, Record<string, unknown>, string]> | undefined;
+  const setResult = responses?.[0]?.[1];
+
+  if (
+    setResult &&
+    typeof setResult === "object" &&
+    "notUpdated" in setResult &&
+    setResult.notUpdated &&
+    typeof setResult.notUpdated === "object" &&
+    (resourceId as string) in setResult.notUpdated
+  ) {
+    const err = (setResult.notUpdated as Record<string, Record<string, unknown>>)[resourceId as string];
+    return Response.json(
+      { error: err.description || "Failed to update share" },
+      { status: 400 },
+    );
+  }
+
+  return Response.json({ ok: true });
+}
+
+function buildRights(
+  kind: string,
+  role: string,
+): Record<string, boolean> | null {
+  if (role === null) return null;
+
+  switch (kind) {
+    case "mailbox":
+      return mailboxRights(role);
+    case "calendar":
+      return calendarRights(role);
+    case "addressBook":
+      return addressBookRights(role);
+    case "file":
+      return fileRights(role);
+    default:
+      return readRights();
+  }
+}
+
+function mailboxRights(role: string): Record<string, boolean> {
+  switch (role) {
+    case "read":
+      return {
+        mayReadItems: true,
+        mayAddItems: false,
+        mayRemoveItems: false,
+        maySetSeen: false,
+        maySetKeywords: false,
+        mayCreateChild: false,
+        mayRename: false,
+        mayDelete: false,
+        maySubmit: false,
+      };
+    case "readWrite":
+      return {
+        mayReadItems: true,
+        mayAddItems: true,
+        mayRemoveItems: false,
+        maySetSeen: true,
+        maySetKeywords: true,
+        mayCreateChild: false,
+        mayRename: false,
+        mayDelete: false,
+        maySubmit: true,
+      };
+    case "manager":
+      return {
+        mayReadItems: true,
+        mayAddItems: true,
+        mayRemoveItems: true,
+        maySetSeen: true,
+        maySetKeywords: true,
+        mayCreateChild: true,
+        mayRename: true,
+        mayDelete: true,
+        maySubmit: true,
+        mayShare: true,
+      };
+    default:
+      return mailboxRights("read");
+  }
+}
+
+function calendarRights(role: string): Record<string, boolean> {
+  switch (role) {
+    case "read":
+      return {
+        mayReadFreeBusy: true,
+        mayReadItems: true,
+        mayWriteAll: false,
+        mayWriteOwn: false,
+        mayUpdatePrivate: false,
+        mayRSVP: false,
+        mayShare: false,
+        mayDelete: false,
+      };
+    case "readWrite":
+      return {
+        mayReadFreeBusy: true,
+        mayReadItems: true,
+        mayWriteAll: true,
+        mayWriteOwn: true,
+        mayUpdatePrivate: true,
+        mayRSVP: true,
+        mayShare: false,
+        mayDelete: false,
+      };
+    case "manager":
+      return {
+        mayReadFreeBusy: true,
+        mayReadItems: true,
+        mayWriteAll: true,
+        mayWriteOwn: true,
+        mayUpdatePrivate: true,
+        mayRSVP: true,
+        mayShare: true,
+        mayDelete: true,
+      };
+    default:
+      return calendarRights("read");
+  }
+}
+
+function addressBookRights(role: string): Record<string, boolean> {
+  switch (role) {
+    case "read":
+      return {
+        mayRead: true,
+        mayWrite: false,
+        mayShare: false,
+        mayDelete: false,
+      };
+    case "readWrite":
+      return {
+        mayRead: true,
+        mayWrite: true,
+        mayShare: false,
+        mayDelete: false,
+      };
+    case "manager":
+      return {
+        mayRead: true,
+        mayWrite: true,
+        mayShare: true,
+        mayDelete: true,
+      };
+    default:
+      return addressBookRights("read");
+  }
+}
+
+function fileRights(role: string): Record<string, boolean> {
+  switch (role) {
+    case "read":
+      return {
+        mayRead: true,
+        mayAddChildren: false,
+        mayRename: false,
+        mayDelete: false,
+        mayModifyContent: false,
+        mayShare: false,
+      };
+    case "readWrite":
+      return {
+        mayRead: true,
+        mayAddChildren: true,
+        mayRename: true,
+        mayDelete: true,
+        mayModifyContent: true,
+        mayShare: false,
+      };
+    case "manager":
+      return {
+        mayRead: true,
+        mayAddChildren: true,
+        mayRename: true,
+        mayDelete: true,
+        mayModifyContent: true,
+        mayShare: true,
+      };
+    default:
+      return fileRights("read");
+  }
+}
+
+function readRights(): Record<string, boolean> {
+  return { mayRead: true };
+}

app/api/smime/enroll/route.ts

@@ -0,0 +1,180 @@
+/**
+ * S/MIME certificate enrolment (`C-08`, server half).
+ *
+ * The plugin generates a keypair in the browser and sends only a CSR here. The
+ * private key never leaves the device — this route never sees it and has no way
+ * to ask for it.
+ *
+ * What this route exists to decide: **which addresses the issued certificate is
+ * allowed to assert.** That question cannot be answered in the browser, and it
+ * must not be answered by the CSR — a CSR is a self-assertion, and honouring its
+ * `subjectAltName` would let anyone mint a certificate for any address, which is
+ * indistinguishable from having no CA at all.
+ */
+import { NextResponse } from 'next/server';
+import { readStalwartAuthContext } from '@/lib/stalwart/auth-context';
+import { fetchJmapSession, postJmap, rebaseApiUrl } from '@/lib/stalwart/jmap-api';
+import { CaError, getCaProvider } from '@/lib/smime-ca';
+
+export const runtime = 'nodejs';
+
+const MAX_CSR_BYTES = 8 * 1024;
+
+export async function POST(request: Request) {
+  const provider = getCaProvider();
+  if (!provider) {
+    return NextResponse.json(
+      { error: 'S/MIME enrolment is not configured on this server' },
+      { status: 503 },
+    );
+  }
+
+  let body: { csrPem?: unknown; slot?: unknown };
+  try {
+    body = await request.json();
+  } catch {
+    return NextResponse.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+
+  const csrPem = typeof body.csrPem === 'string' ? body.csrPem.trim() : '';
+  if (!csrPem) {
+    return NextResponse.json({ error: 'csrPem is required' }, { status: 400 });
+  }
+  if (csrPem.length > MAX_CSR_BYTES) {
+    return NextResponse.json({ error: 'csrPem too large' }, { status: 413 });
+  }
+  // Shape check only. This is not a security control — see the module comment on
+  // why the CSR's contents are not trusted regardless of what they contain.
+  if (!/^-----BEGIN (NEW )?CERTIFICATE REQUEST-----[\s\S]+-----END (NEW )?CERTIFICATE REQUEST-----$/
+    .test(csrPem)) {
+    return NextResponse.json({ error: 'csrPem is not a PEM PKCS#10 request' }, { status: 400 });
+  }
+
+  const slot = Number.isInteger(body.slot) ? (body.slot as number) : 0;
+  if (slot < 0 || slot > 9) {
+    return NextResponse.json({ error: 'invalid slot' }, { status: 400 });
+  }
+
+  // The auth context is an encrypted, server-minted cookie, so `username` cannot
+  // be forged by the client. It still isn't sufficient on its own — see below.
+  const auth = await readStalwartAuthContext(slot);
+  if (!auth) {
+    return NextResponse.json({ error: 'not authenticated' }, { status: 401 });
+  }
+
+  let identity: { addresses: string[]; displayName?: string };
+  try {
+    identity = await resolveIdentity(auth.serverUrl, auth.authHeader);
+  } catch (cause) {
+    console.error('[smime-enroll] identity resolution failed:', cause);
+    return NextResponse.json(
+      { error: 'could not confirm your sending addresses with the mail server' },
+      { status: 502 },
+    );
+  }
+
+  if (identity.addresses.length === 0) {
+    // An authenticated principal with no sending identity — an admin-only
+    // account, or a mailbox with submission disabled. Refuse rather than falling
+    // back to the cookie's username, which would issue a certificate for an
+    // address the mail server will not actually let this account send from.
+    return NextResponse.json(
+      { error: 'this account has no sending address, so no certificate can be issued for it' },
+      { status: 403 },
+    );
+  }
+
+  try {
+    const issued = await provider.enroll({
+      csrPem,
+      addresses: identity.addresses,
+      commonName: identity.displayName || identity.addresses[0],
+    });
+
+    // Audit before returning. A certificate that exists with no record of who
+    // asked for it is the thing you most want during an incident.
+    console.info(
+      `[smime-enroll] issued serial=${issued.serialNumber} ca=${provider.id} `
+      + `account=${auth.username} addresses=${identity.addresses.join(',')}`,
+    );
+
+    return NextResponse.json({
+      certificatePem: issued.certificatePem,
+      chainPem: issued.chainPem,
+      serialNumber: issued.serialNumber,
+      issuerDn: issued.issuerDn,
+      notAfter: issued.notAfter,
+      addresses: identity.addresses,
+    });
+  } catch (error) {
+    if (error instanceof CaError) {
+      console.error(`[smime-enroll] CA error for ${auth.username}:`, error.message, error.cause);
+      return NextResponse.json({ error: error.message }, { status: error.status });
+    }
+    console.error('[smime-enroll] unexpected error:', error);
+    return NextResponse.json({ error: 'enrolment failed' }, { status: 500 });
+  }
+}
+
+/**
+ * Ask Stalwart which addresses this session may send from, via `Identity/get`.
+ *
+ * This is deliberately not derived from the auth cookie's `username`. The right
+ * authority for "may this person have a signing certificate for this address" is
+ * the mail server that already decides "may this person send from this address" —
+ * anything else invents a second, weaker answer to a question already settled.
+ *
+ * It also handles the cases the cookie cannot: an alias the account legitimately
+ * sends as (which should be on the certificate) and an administrative principal
+ * with no mailbox at all (which should get no certificate). The latter is not
+ * hypothetical here — `admin@sandbox.vnc.de` authenticates successfully and has
+ * no mail session, and trusting the cookie would have issued it a certificate.
+ */
+async function resolveIdentity(
+  serverUrl: string,
+  authHeader: string,
+): Promise<{ addresses: string[]; displayName?: string }> {
+  const session = await fetchJmapSession(serverUrl, authHeader);
+  if (!session) throw new Error('no JMAP session');
+
+  const accountId = session.primaryAccounts?.['urn:ietf:params:jmap:mail'];
+  if (!accountId) throw new Error('no primary mail account');
+
+  const apiUrl = rebaseApiUrl(session, serverUrl);
+  if (!apiUrl) throw new Error('session advertises no usable apiUrl');
+
+  const res = await postJmap(apiUrl, authHeader, JSON.stringify({
+    using: ['urn:ietf:params:jmap:core', 'urn:ietf:params:jmap:submission'],
+    methodCalls: [['Identity/get', { accountId }, '0']],
+  }));
+  if (!res.ok) throw new Error(`Identity/get returned ${res.status}`);
+
+  const payload = await res.json() as {
+    methodResponses?: [string, { list?: { email?: string; name?: string }[] }, string][];
+  };
+  const first = payload.methodResponses?.[0];
+  if (!first || first[0] !== 'Identity/get') {
+    throw new Error('Identity/get failed');
+  }
+
+  const seen = new Set<string>();
+  const addresses: string[] = [];
+  let displayName: string | undefined;
+
+  for (const entry of first[1]?.list ?? []) {
+    const email = typeof entry.email === 'string' ? entry.email.trim().toLowerCase() : '';
+    // Stalwart can report a wildcard identity (`*@domain`) for accounts allowed
+    // to send as anything in a domain. That is a real capability, but it is not
+    // an address and must never reach a certificate — a `rfc822Name` SAN of
+    // `*@vnc.de` is either rejected by clients or, worse, honoured.
+    if (!email || email.includes('*') || !email.includes('@')) continue;
+    if (seen.has(email)) continue;
+    seen.add(email);
+    addresses.push(email);
+    if (!displayName && typeof entry.name === 'string' && entry.name.trim()) {
+      displayName = entry.name.trim();
+    }
+  }
+
+  return { addresses, displayName };
+}

app/api/vnctalk/meeting/route.ts

@@ -0,0 +1,49 @@
+import { NextRequest, NextResponse } from "next/server";
+import { createVncMeeting } from "@/lib/vnctalk/client";
+import { logger } from "@/lib/logger";
+
+function getClientIP(request: NextRequest): string {
+  const forwarded = request.headers.get("x-forwarded-for");
+  if (forwarded) return forwarded.split(",")[0].trim();
+  return "127.0.0.1";
+}
+
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+
+    if (!body.name || !body.start || !body.end) {
+      return NextResponse.json(
+        { error: "Missing required fields: name, start, end" },
+        { status: 400 }
+      );
+    }
+
+    const invitees: string[] = Array.isArray(body.invitees) ? body.invitees : [];
+
+    const result = await createVncMeeting({
+      name: String(body.name),
+      start: String(body.start),
+      end: String(body.end),
+      invitees,
+      password: body.password ? String(body.password) : undefined,
+      description: body.description ? String(body.description) : undefined,
+    });
+
+    logger.info("VNCtalk meeting created", {
+      meetingId: result.meetingId,
+      ip: getClientIP(request),
+    });
+
+    return NextResponse.json(result, { status: 201 });
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Unknown error";
+    logger.error("VNCtalk meeting creation failed", { error: message });
+
+    if (message.includes("not configured")) {
+      return NextResponse.json({ error: message }, { status: 503 });
+    }
+
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}

app/globals.css

@@ -1,4 +1,5 @@
 @import "tailwindcss";
+@import "tw-animate-css";
 
 @custom-variant dark (&:where(.dark, .dark *));
 
@@ -558,6 +559,40 @@ body {
   overscroll-behavior: none;
 }
 
+/* Shake animation (for rejected input) */
+@keyframes shake {
+  0%,
+  100% {
+    transform: translateX(0);
+  }
+  20%,
+  60% {
+    transform: translateX(-4px);
+  }
+  40%,
+  80% {
+    transform: translateX(4px);
+  }
+}
+
+.animate-shake {
+  animation: shake 0.4s ease-in-out;
+}
+
+/* Fade in animation (for popovers) */
+@keyframes fade-in {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
+
+.animate-fade-in {
+  animation: fade-in 0.2s ease-out;
+}
+
 /* Slide in from right animation (for mobile views) */
 @keyframes slide-in-from-right {
   from {
@@ -660,13 +695,13 @@ body {
 
 .tiptap ul {
   list-style-type: disc;
-  padding-left: 1.5rem;
+  padding-inline-start: 1.5rem;
   margin: 0.25rem 0;
 }
 
 .tiptap ol {
   list-style-type: decimal;
-  padding-left: 1.5rem;
+  padding-inline-start: 1.5rem;
   margin: 0.25rem 0;
 }
 
@@ -675,8 +710,8 @@ body {
 }
 
 .tiptap blockquote {
-  border-left: 3px solid var(--color-border);
-  padding-left: 1rem;
+  border-inline-start: 3px solid var(--color-border);
+  padding-inline-start: 1rem;
   margin: 0.5rem 0;
   color: var(--color-muted-foreground);
 }
@@ -719,7 +754,7 @@ body {
 
 .tiptap p.is-editor-empty:first-child::before {
   content: attr(data-placeholder);
-  float: left;
+  float: inline-start;
   color: var(--color-muted-foreground);
   pointer-events: none;
   height: 0;
@@ -808,3 +843,20 @@ body {
   border-radius: 8px;
   animation: settings-search-pulse 1.6s ease-in-out forwards;
 }
+
+/* RTL: mirror directional icons (chevrons/arrows) so prev/next, back/forward,
+   and panel-collapse affordances point the correct way in right-to-left layouts.
+   lucide-react emits a `lucide-<name>` class per icon, so we target the
+   directional ones only — vertical chevrons (up/down) are intentionally left. */
+[dir="rtl"] .lucide-chevron-left,
+[dir="rtl"] .lucide-chevron-right,
+[dir="rtl"] .lucide-chevrons-left,
+[dir="rtl"] .lucide-chevrons-right,
+[dir="rtl"] .lucide-arrow-left,
+[dir="rtl"] .lucide-arrow-right,
+[dir="rtl"] .lucide-arrow-big-left,
+[dir="rtl"] .lucide-arrow-big-right,
+[dir="rtl"] .lucide-panel-left,
+[dir="rtl"] .lucide-panel-right {
+  transform: scaleX(-1);
+}

app/manifest.ts

@@ -46,7 +46,7 @@ export default async function manifest(): Promise<ExtendedManifest> {
   const appName =
     branded<string>("appName", "") ||
     process.env.NEXT_PUBLIC_APP_NAME ||
-    "Bulwark Webmail";
+    "VNCmail+";
 
   const shortName = branded<string>("appShortName", "") || appName;
   const description =

components/__tests__/favicon-badge.test.tsx

@@ -0,0 +1,98 @@
+import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
+import { render } from '@testing-library/react';
+import { FaviconBadge } from '@/components/favicon-badge';
+import { useFaviconBadge } from '@/hooks/use-favicon-badge';
+import { useEmailStore } from '@/stores/email-store';
+import { useSettingsStore } from '@/stores/settings-store';
+import type { Mailbox } from '@/lib/jmap/types';
+
+vi.mock('@/hooks/use-favicon-badge', () => ({
+  useFaviconBadge: vi.fn(),
+}));
+
+const useFaviconBadgeMock = vi.mocked(useFaviconBadge);
+
+function mailbox(patch: Partial<Mailbox> & { id: string }): Mailbox {
+  return {
+    name: patch.id,
+    sortOrder: 0,
+    totalEmails: 0,
+    unreadEmails: 0,
+    totalThreads: 0,
+    unreadThreads: 0,
+    isSubscribed: true,
+    myRights: {
+      mayReadItems: true,
+      mayAddItems: true,
+      mayRemoveItems: true,
+      maySetSeen: true,
+      maySetKeywords: true,
+      mayCreateChild: true,
+      mayRename: true,
+      mayDelete: true,
+      maySubmit: true,
+    },
+    ...patch,
+  } as Mailbox;
+}
+
+const initialMailboxes = useEmailStore.getState().mailboxes;
+
+beforeEach(() => {
+  useEmailStore.setState({ mailboxes: initialMailboxes });
+  useSettingsStore.setState({ faviconUnreadBadge: true });
+});
+
+afterEach(() => {
+  useEmailStore.setState({ mailboxes: initialMailboxes });
+  useSettingsStore.setState({ faviconUnreadBadge: true });
+  vi.clearAllMocks();
+});
+
+describe('FaviconBadge', () => {
+  it('badges the unread count of the primary inbox', () => {
+    useEmailStore.setState({
+      mailboxes: [mailbox({ id: 'inbox', role: 'inbox', unreadEmails: 7 })],
+    });
+
+    const { container } = render(<FaviconBadge />);
+
+    expect(useFaviconBadgeMock).toHaveBeenCalledWith(7, true);
+    expect(container.firstChild).toBeNull(); // renders no markup
+  });
+
+  it('disables the badge when the setting is off', () => {
+    useSettingsStore.setState({ faviconUnreadBadge: false });
+    useEmailStore.setState({
+      mailboxes: [mailbox({ id: 'inbox', role: 'inbox', unreadEmails: 7 })],
+    });
+
+    render(<FaviconBadge />);
+
+    expect(useFaviconBadgeMock).toHaveBeenCalledWith(7, false);
+  });
+
+  it('ignores a shared inbox, even when it sorts first', () => {
+    // Shared and group inboxes ship in the same `mailboxes` array. A plain
+    // `role === 'inbox'` lookup would badge somebody else's inbox on a
+    // delegated setup, so the store's canonical `!isShared` filter is required.
+    useEmailStore.setState({
+      mailboxes: [
+        mailbox({ id: 'shared', role: 'inbox', isShared: true, unreadEmails: 99 }),
+        mailbox({ id: 'mine', role: 'inbox', unreadEmails: 4 }),
+      ],
+    });
+
+    render(<FaviconBadge />);
+
+    expect(useFaviconBadgeMock).toHaveBeenCalledWith(4, true);
+  });
+
+  it('badges zero when there is no inbox yet', () => {
+    useEmailStore.setState({ mailboxes: [] });
+
+    render(<FaviconBadge />);
+
+    expect(useFaviconBadgeMock).toHaveBeenCalledWith(0, true);
+  });
+});

components/ai/ai-ask-button.tsx

@@ -0,0 +1,282 @@
+'use client';
+
+// The AI Assistant's entry point in the MAIN mail view — a Sparkles button in
+// the search toolbar that opens a compact Ask dialog. Until this existed, the
+// only way to ask the assistant anything was the "Try it" box buried in
+// Settings → AI Assistant, which is a configuration screen, not a workflow.
+//
+// Deliberately reuses the exact same wire client (lib/ai/local-client's
+// askMail) and the exact same persisted provider settings as the Settings
+// pane — this is a second door to the same room, not a second room. When no
+// provider is configured yet, the dialog deep-links to the Settings pane
+// (where local-discovery offers the one-click Connect) instead of duplicating
+// that setup flow here.
+
+import { useCallback, useEffect, useRef, useState } from 'react';
+import { useRouter } from 'next/navigation';
+import { AlertTriangle, Loader2, Settings2, Sparkles, X } from 'lucide-react';
+import { cn } from '@/lib/utils';
+import { Button } from '@/components/ui/button';
+import { apiFetch } from '@/lib/browser-navigation';
+import { useAccountStore } from '@/stores/account-store';
+import { DEFAULT_AI_POLICY, type AiPolicy } from '@/lib/ai/types';
+import { supportsLocalLlm } from '@/lib/platform-capabilities';
+import { getAiApiKey } from '@/lib/ai/key-store';
+import { loadAiSettings, isPresetActiveId, presetIdFromActiveId, type AiLocalSettings } from '@/lib/ai/local-settings';
+import { askMail, type AskResult } from '@/lib/ai/local-client';
+import { ensureDefaultProvider } from '@/lib/ai/auto-provision';
+
+function useAiPolicy(): { policy: AiPolicy; loaded: boolean } {
+  const [policy, setPolicy] = useState<AiPolicy>(DEFAULT_AI_POLICY);
+  const [loaded, setLoaded] = useState(false);
+  useEffect(() => {
+    let cancelled = false;
+    (async () => {
+      try {
+        const res = await apiFetch('/api/ai/policy');
+        if (res.ok && !cancelled) setPolicy(await res.json());
+      } catch {
+        /* stays at DEFAULT (disabled) — the button simply doesn't render */
+      } finally {
+        if (!cancelled) setLoaded(true);
+      }
+    })();
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+  return { policy, loaded };
+}
+
+/** Mirrors the Settings pane's canAsk gating: is any provider actually ready? */
+function providerConfigured(settings: AiLocalSettings, policy: AiPolicy): boolean {
+  const classes = policy.entitlement.classes;
+  switch (settings.provider) {
+    case 'local':
+      return supportsLocalLlm() && classes.includes('local') && !!settings.localModel;
+    case 'server':
+      return classes.includes('server') && !!settings.serverModel;
+    case 'opencode':
+      return classes.includes('opencode') && !!settings.opencodeModel;
+    case 'public': {
+      if (isPresetActiveId(settings.activeProfileId)) {
+        return classes.includes('public') && !!presetIdFromActiveId(settings.activeProfileId) && settings.publicConsentAccepted;
+      }
+      const active = settings.publicProfiles.find((p) => p.id === settings.activeProfileId) ?? null;
+      return classes.includes('public') && !!active && settings.publicConsentAccepted;
+    }
+    default:
+      return false;
+  }
+}
+
+export function AiAskButton() {
+  const router = useRouter();
+  const { policy, loaded } = useAiPolicy();
+  // Retrieval must read the SAME account slot the indexer wrote under.
+  const activeSlot = useAccountStore((s) => s.accounts.find((a) => a.id === s.activeAccountId)?.cookieSlot);
+  const [open, setOpen] = useState(false);
+  // Re-read on every open: the user may have just configured a provider in
+  // Settings and come straight back here — a mount-time snapshot would still
+  // say "not configured".
+  const [settings, setSettings] = useState<AiLocalSettings>(() => loadAiSettings());
+
+  const [question, setQuestion] = useState('');
+  const [asking, setAsking] = useState(false);
+  const [askResult, setAskResult] = useState<AskResult | null>(null);
+  const [askError, setAskError] = useState<string | null>(null);
+  const textareaRef = useRef<HTMLTextAreaElement>(null);
+
+  const openDialog = useCallback(() => {
+    setSettings(loadAiSettings());
+    setAskResult(null);
+    setAskError(null);
+    setOpen(true);
+  }, []);
+
+  // Zero-config default (see lib/ai/auto-provision.ts): resolves as soon as
+  // policy loads, so a user who never visits Settings still finds AI
+  // already on the first time they open this dialog, if OpenCode or Ollama
+  // is available.
+  useEffect(() => {
+    if (!loaded) return;
+    (async () => {
+      const next = await ensureDefaultProvider(policy);
+      setSettings(next);
+    })();
+  }, [loaded, policy]);
+
+  useEffect(() => {
+    if (!open) return;
+    textareaRef.current?.focus();
+    const onKey = (e: KeyboardEvent) => {
+      if (e.key === 'Escape') setOpen(false);
+    };
+    window.addEventListener('keydown', onKey);
+    return () => window.removeEventListener('keydown', onKey);
+  }, [open]);
+
+  const configured = providerConfigured(settings, policy);
+  const canAsk = configured && question.trim().length > 0 && !asking;
+
+  const runAsk = useCallback(async () => {
+    if (!canAsk) return;
+    setAsking(true);
+    setAskError(null);
+    setAskResult(null);
+    try {
+      const managedPresetId = presetIdFromActiveId(settings.activeProfileId);
+      const activeProfile = managedPresetId ? null : settings.publicProfiles.find((p) => p.id === settings.activeProfileId) ?? null;
+      const key = activeProfile ? getAiApiKey(activeProfile.id) : null;
+      const result = await askMail(question.trim(), {
+        provider: settings.provider as 'local' | 'server' | 'public' | 'opencode',
+        localBaseUrl: settings.localBaseUrl,
+        localModel: settings.localModel,
+        serverModel: settings.serverModel,
+        opencodeModel: settings.opencodeModel,
+        slot: activeSlot,
+        publicProfile: activeProfile && key ? { baseUrl: activeProfile.baseUrl, model: activeProfile.model, apiKey: key } : null,
+        publicPresetId: managedPresetId,
+      });
+      setAskResult(result);
+    } catch (err) {
+      setAskError(err instanceof Error ? err.message : String(err));
+    } finally {
+      setAsking(false);
+    }
+  }, [canAsk, question, settings, activeSlot]);
+
+  const goToSettings = useCallback(() => {
+    // The Settings page's one-shot deep-link channel (see readPersistedTab in
+    // app/(main)/[locale]/settings/page.tsx) — lands directly on the AI pane,
+    // where local-discovery's Connect banner does the actual setup.
+    try {
+      sessionStorage.setItem('settings-deep-link-tab', 'ai_assistant');
+    } catch {
+      /* private mode — the settings page just opens on its default tab */
+    }
+    setOpen(false);
+    router.push('/settings');
+  }, [router]);
+
+  // Hidden entirely when the admin gate is off or no provider class is
+  // allowed — same visibility rule as the Settings pane itself.
+  if (!loaded || !policy.enabled || policy.entitlement.classes.length === 0) return null;
+
+  return (
+    <>
+      <button
+        type="button"
+        onClick={openDialog}
+        className="flex-shrink-0 p-2 rounded-md transition-colors text-muted-foreground hover:text-foreground hover:bg-muted"
+        title="AI Assistant"
+        aria-label="AI Assistant"
+        data-tour="ai-assistant"
+      >
+        <Sparkles className="w-4 h-4" />
+      </button>
+
+      {open && (
+        <div
+          className="fixed inset-0 z-50 flex items-start justify-center bg-black/50 p-4 pt-[10vh]"
+          onMouseDown={(e) => {
+            if (e.target === e.currentTarget) setOpen(false);
+          }}
+          role="dialog"
+          aria-modal="true"
+          aria-label="AI Assistant"
+        >
+          <div className="w-full max-w-xl rounded-xl border border-border bg-popover text-popover-foreground shadow-2xl">
+            <div className="flex items-center justify-between border-b border-border px-4 py-3">
+              <div className="flex items-center gap-2">
+                <Sparkles className="w-4 h-4 text-primary" />
+                <h2 className="text-sm font-semibold">AI Assistant</h2>
+              </div>
+              <button
+                type="button"
+                onClick={() => setOpen(false)}
+                className="p-1 rounded-md text-muted-foreground hover:text-foreground hover:bg-muted transition-colors"
+                aria-label="Close"
+              >
+                <X className="w-4 h-4" />
+              </button>
+            </div>
+
+            <div className="flex flex-col gap-3 p-4">
+              {!configured ? (
+                <>
+                  <p className="text-sm text-muted-foreground">
+                    No AI provider is set up yet. Pick one in Settings — if Ollama is running on this machine, a
+                    one-click Connect is waiting there.
+                  </p>
+                  <div>
+                    <Button size="sm" onClick={goToSettings}>
+                      <Settings2 className="w-3.5 h-3.5 me-1.5" />
+                      Open AI settings
+                    </Button>
+                  </div>
+                </>
+              ) : (
+                <>
+                  <textarea
+                    ref={textareaRef}
+                    value={question}
+                    onChange={(e) => setQuestion(e.target.value)}
+                    onKeyDown={(e) => {
+                      if ((e.metaKey || e.ctrlKey) && e.key === 'Enter') void runAsk();
+                    }}
+                    rows={3}
+                    placeholder="Ask a question about your mail…"
+                    className="w-full px-3 py-2 text-sm rounded-md bg-muted border border-border text-foreground focus:outline-none focus:ring-2 focus:ring-ring transition-colors duration-150 resize-y"
+                  />
+                  <div className="flex items-center gap-3">
+                    <Button size="sm" onClick={() => void runAsk()} disabled={!canAsk}>
+                      {asking && <Loader2 className="w-3.5 h-3.5 me-1.5 animate-spin" />}
+                      Ask
+                    </Button>
+                    <span className="text-xs text-muted-foreground">⌘⏎ to send</span>
+                  </div>
+
+                  {askError && (
+                    <div className="flex items-start gap-2 rounded-lg border border-destructive/40 bg-destructive/5 p-3">
+                      <AlertTriangle className="w-4 h-4 mt-0.5 text-destructive shrink-0" />
+                      <p className="text-sm text-destructive">{askError}</p>
+                    </div>
+                  )}
+
+                  {askResult && (
+                    <div className={cn('flex flex-col gap-2 rounded-lg border border-border p-4', 'max-h-[45vh] overflow-y-auto')}>
+                      {askResult.retrievalState === 'no-index' && (
+                        <p className="text-xs text-muted-foreground italic">
+                          No local mail index available in this session — answered without your mail.
+                        </p>
+                      )}
+                      {askResult.retrievalState === 'no-match' && (
+                        <p className="text-xs text-muted-foreground italic">
+                          Your mail index is available, but nothing in it matched this question — answered
+                          without your mail. It matches on keywords, so content questions work better than
+                          recency ones.
+                        </p>
+                      )}
+                      <p className="text-sm text-foreground whitespace-pre-wrap">{askResult.answer}</p>
+                      {askResult.sources.length > 0 && (
+                        <div className="flex flex-col gap-0.5 border-t border-border pt-2 mt-1">
+                          <span className="text-xs font-medium text-muted-foreground">Sources</span>
+                          {askResult.sources.map((s, i) => (
+                            <span key={s.id} className="text-xs text-muted-foreground truncate">
+                              [{i + 1}] {s.subject}
+                            </span>
+                          ))}
+                        </div>
+                      )}
+                    </div>
+                  )}
+                </>
+              )}
+            </div>
+          </div>
+        </div>
+      )}
+    </>
+  );
+}

components/calendar/calendar-agenda-view.tsx

@@ -131,7 +131,7 @@ export function CalendarAgendaView({
             )}>
               {formatDateHeader(group.date)}
             </span>
-            <span className="text-xs text-muted-foreground ml-2">
+            <span className="text-xs text-muted-foreground ms-2">
               {intlFormatter.dateTime(group.date, { month: "short", day: "numeric", year: "numeric" })}
             </span>
           </div>
@@ -148,6 +148,9 @@ export function CalendarAgendaView({
               const color = getEventColor(ev, calendar);
               const start = getEventStartDate(ev);
               const end = getEventEndDate(ev);
+              // iTIP CANCEL marks the attendee's copy with status "cancelled"
+              // instead of deleting it (#572).
+              const isCancelled = ev.status === "cancelled";
               const locationName = ev.locations
                 ? Object.values(ev.locations)[0]?.name
                 : null;
@@ -159,7 +162,10 @@ export function CalendarAgendaView({
                   onMouseEnter={(e) => onHoverEvent?.(ev, e.currentTarget.getBoundingClientRect())}
                   onMouseLeave={() => onHoverLeave?.()}
                   onContextMenu={onContextMenuEvent ? (e) => onContextMenuEvent(e, ev) : undefined}
-                  className="w-full flex items-start px-4 hover:bg-muted/50 transition-colors text-left"
+                  className={cn(
+                    "w-full flex items-start px-4 hover:bg-muted/50 transition-colors text-start",
+                    isCancelled && "opacity-60"
+                  )}
                   style={{ gap: 'var(--density-item-gap)', paddingBlock: 'var(--density-item-py)' }}
                 >
                   <div className="flex flex-col items-center pt-0.5 min-w-[60px]">
@@ -181,7 +187,7 @@ export function CalendarAgendaView({
                   />
 
                   <div className="flex-1 min-w-0">
-                    <div className="text-sm font-medium truncate">
+                    <div className={cn("text-sm font-medium truncate", isCancelled && "line-through")}>
                       {ev.title || t("events.no_title")}
                     </div>
                     {locationName && (

components/calendar/calendar-day-view.tsx

@@ -218,7 +218,7 @@ export function CalendarDayView({
             {HOURS.map((h) => (
               <div
                 key={h}
-                className="relative text-muted-foreground text-right pr-2"
+                className="relative text-muted-foreground text-end pe-2"
                 style={{ height: HOUR_HEIGHT }}
               >
                 {h > 0 && (
@@ -231,7 +231,7 @@ export function CalendarDayView({
           </div>
 
           <div
-            className="flex-1 relative border-l border-border"
+            className="flex-1 relative border-s border-border"
             role="row"
             aria-label={t("views.day")}
             onPointerDown={(e) => handleGridPointerDown(e, dayKey, selectedDate)}
@@ -312,7 +312,7 @@ export function CalendarDayView({
                 style={{ top: (nowMinutes / 60) * HOUR_HEIGHT }}
               >
                 <div className="flex items-center">
-                  <div className="w-2.5 h-2.5 rounded-full bg-destructive -ml-1" />
+                  <div className="w-2.5 h-2.5 rounded-full bg-destructive -ms-1" />
                   <div className="flex-1 h-px bg-destructive" />
                 </div>
               </div>
@@ -346,7 +346,7 @@ export function CalendarDayView({
                 style={{ top: (dropTarget.minutes / 60) * HOUR_HEIGHT }}
               >
                 <div className="flex items-center">
-                  <div className="w-2.5 h-2.5 rounded-full bg-primary -ml-1" />
+                  <div className="w-2.5 h-2.5 rounded-full bg-primary -ms-1" />
                   <div className="flex-1 h-0.5 bg-primary rounded-full" />
                 </div>
                 <div className="absolute -top-4 left-2 text-[10px] font-medium text-primary bg-background/90 px-1 rounded shadow-sm">

components/calendar/calendar-month-view.tsx

@@ -1,19 +1,20 @@
 "use client";
 
 import { useMemo, useState, useCallback, type DragEvent } from "react";
-import { useTranslations, useFormatter } from "next-intl";
-import {
-  startOfMonth, endOfMonth, startOfWeek, endOfWeek,
-  eachDayOfInterval, isSameDay, isSameMonth, isToday, format, parseISO,
-} from "date-fns";
+import { useTranslations } from "next-intl";
+import { format, parseISO } from "date-fns";
 import { cn } from "@/lib/utils";
 import { EventCard } from "./event-card";
 import { buildWeekSegments, getEventDayBounds, getPrimaryCalendarId } from "@/lib/calendar-utils";
 import type { CalendarEvent, Calendar } from "@/lib/jmap/types";
 import { useAuthStore } from "@/stores/auth-store";
 import { useCalendarStore } from "@/stores/calendar-store";
+import { useSettingsStore } from "@/stores/settings-store";
 import type { PendingEventPreview } from "./event-modal";
 import { toast } from "@/stores/toast-store";
+import { useCalendarLocale } from "@/hooks/use-calendar-locale";
+import { RadialMenu, type RadialMenuItem } from "@/components/ui/radial-menu";
+import { Pencil, Trash2, Copy } from "lucide-react";
 
 interface CalendarMonthViewProps {
   selectedDate: Date;
@@ -26,6 +27,9 @@ interface CalendarMonthViewProps {
   onContextMenuEvent?: (e: React.MouseEvent, event: CalendarEvent) => void;
   onContextMenuEmpty?: (e: React.MouseEvent, date: Date, hour?: number, allDayArea?: boolean) => void;
   onCreateAtTime?: (date: Date) => void;
+  onEditEvent?: (event: CalendarEvent) => void;
+  onDeleteEvent?: (event: CalendarEvent) => void;
+  onDuplicateEvent?: (event: CalendarEvent) => void;
   firstDayOfWeek?: number;
   isMobile?: boolean;
   pendingPreview?: PendingEventPreview | null;
@@ -42,21 +46,36 @@ export function CalendarMonthView({
   onContextMenuEvent,
   onContextMenuEmpty,
   onCreateAtTime,
+  onEditEvent,
+  onDeleteEvent,
+  onDuplicateEvent,
   firstDayOfWeek = 1,
   isMobile,
   pendingPreview,
 }: CalendarMonthViewProps) {
   const t = useTranslations("calendar");
-  const intlFormatter = useFormatter();
-  const weekStart = (firstDayOfWeek === 0 ? 0 : 1) as 0 | 1;
+  const showTimeInMonthView = useSettingsStore((state) => state.showTimeInMonthView);
+  // On mobile the month view collapses events to dots unless the user opted
+  // into full entries via "Show time in month view" (#666).
+  const showChips = !isMobile || showTimeInMonthView;
+  const overlayTop = isMobile ? 34 : 30;
+  const rowHeight = isMobile ? 18 : 22;
+  const chipHeight = rowHeight - 2;
+  const {
+    weekStartsOn,
+    dayHeaderKeys,
+    getMonthGridDays,
+    checkIsToday,
+    checkIsSameMonth,
+    checkIsSameDay,
+    formatDayNumber,
+    formatFullDate,
+  } = useCalendarLocale();
 
-  const days = useMemo(() => {
-    const monthStart = startOfMonth(selectedDate);
-    const monthEnd = endOfMonth(selectedDate);
-    const gridStart = startOfWeek(monthStart, { weekStartsOn: weekStart });
-    const gridEnd = endOfWeek(monthEnd, { weekStartsOn: weekStart });
-    return eachDayOfInterval({ start: gridStart, end: gridEnd });
-  }, [selectedDate, weekStart]);
+  const days = useMemo(
+    () => getMonthGridDays(selectedDate),
+    [selectedDate, getMonthGridDays],
+  );
 
   const calendarMap = useMemo(() => {
     const map = new Map<string, Calendar>();
@@ -83,10 +102,6 @@ export function CalendarMonthView({
     return map;
   }, [events]);
 
-  const dayHeaders = firstDayOfWeek === 0
-    ? ["sun", "mon", "tue", "wed", "thu", "fri", "sat"] as const
-    : ["mon", "tue", "wed", "thu", "fri", "sat", "sun"] as const;
-
   const weeks = useMemo(() => {
     const result: Date[][] = [];
     for (let i = 0; i < days.length; i += 7) {
@@ -105,6 +120,54 @@ export function CalendarMonthView({
 
   const [dropDayKey, setDropDayKey] = useState<string | null>(null);
 
+  // Radial menu state
+  const [radialMenuOpen, setRadialMenuOpen] = useState(false);
+  const [radialMenuPos, setRadialMenuPos] = useState({ x: 0, y: 0 });
+  const [radialMenuEvent, setRadialMenuEvent] = useState<CalendarEvent | null>(null);
+
+  const closeRadialMenu = useCallback(() => {
+    setRadialMenuOpen(false);
+  }, []);
+
+  const radialMenuItems = useMemo<RadialMenuItem[]>(() => {
+    if (!radialMenuEvent) return [];
+    const ev = radialMenuEvent;
+    const items: RadialMenuItem[] = [];
+    if (onEditEvent) {
+      items.push({
+        id: "edit",
+        icon: <Pencil className="w-5 h-5" />,
+        label: t("edit"),
+        onClick: () => { onEditEvent(ev); },
+      });
+    }
+    if (onDeleteEvent) {
+      items.push({
+        id: "delete",
+        icon: <Trash2 className="w-5 h-5" />,
+        label: t("delete"),
+        onClick: () => { onDeleteEvent(ev); },
+        destructive: true,
+      });
+    }
+    if (onDuplicateEvent) {
+      items.push({
+        id: "duplicate",
+        icon: <Copy className="w-5 h-5" />,
+        label: t("duplicate"),
+        onClick: () => { onDuplicateEvent(ev); },
+      });
+    }
+    return items;
+  }, [radialMenuEvent, t, onEditEvent, onDeleteEvent, onDuplicateEvent]);
+
+  const handleRadialMenuEvent = useCallback((e: React.MouseEvent, event: CalendarEvent) => {
+    setRadialMenuPos({ x: e.clientX, y: e.clientY });
+    setRadialMenuEvent(event);
+    setRadialMenuOpen(true);
+    onContextMenuEvent?.(e, event);
+  }, [onContextMenuEvent]);
+
   const handleCellDragOver = useCallback((e: DragEvent<HTMLDivElement>, dayKey: string) => {
     if (!e.dataTransfer.types.includes("application/x-calendar-event")) return;
     e.preventDefault();
@@ -141,11 +204,11 @@ export function CalendarMonthView({
   }, [t]);
 
   return (
-    <div className="flex flex-col flex-1 overflow-hidden" role="grid" aria-label={intlFormatter.dateTime(selectedDate, { month: "long", year: "numeric" })}>
+    <div className="flex flex-col flex-1 overflow-hidden" role="grid" aria-label={formatFullDate(selectedDate)}>
       <div className="grid grid-cols-7 border-b border-border" role="row">
-        {dayHeaders.map((d) => (
+        {dayHeaderKeys.map((d) => (
           <div key={d} role="columnheader" className={cn(
-            "text-center text-xs font-medium text-muted-foreground py-2 border-r border-border last:border-r-0",
+            "text-center text-xs font-medium text-muted-foreground py-2 border-e border-border last:border-e-0",
             isMobile && "py-1.5 text-[11px]"
           )}>
             {isMobile ? t(`days.${d}`).slice(0, 2) : t(`days.${d}`)}
@@ -158,15 +221,15 @@ export function CalendarMonthView({
           <div key={wi} className={cn(
             "relative flex-1 border-b border-border last:border-b-0",
             isMobile ? "min-h-[52px]" : "min-h-[100px]"
-          )} role="row" style={isMobile ? undefined : { minHeight: Math.max(100, 34 + rowCount * 22 + 8) }}>
+          )} role="row" style={showChips ? { minHeight: Math.max(isMobile ? 52 : 100, overlayTop + 4 + rowCount * rowHeight + 8) } : undefined}>
             <div className="grid grid-cols-7 h-full">
             {week.map((day) => {
-              const inMonth = isSameMonth(day, selectedDate);
-              const selected = isSameDay(day, selectedDate);
-              const today = isToday(day);
+              const inMonth = checkIsSameMonth(day, selectedDate);
+              const selected = checkIsSameDay(day, selectedDate);
+              const today = checkIsToday(day);
               const key = format(day, "yyyy-MM-dd");
               const dayEvents = eventsByDate.get(key) || [];
-              const fullDateLabel = intlFormatter.dateTime(day, { weekday: "long", month: "long", day: "numeric", year: "numeric" });
+              const fullDateLabel = formatFullDate(day);
 
               return (
                 <div
@@ -181,7 +244,7 @@ export function CalendarMonthView({
                   onDragLeave={handleCellDragLeave}
                   onDrop={(e) => handleCellDrop(e, day)}
                   className={cn(
-                    "border-r border-border last:border-r-0 p-1 cursor-pointer transition-colors touch-manipulation",
+                    "border-e border-border last:border-e-0 p-1 cursor-pointer transition-colors touch-manipulation",
                     !inMonth && "bg-muted/30",
                     "hover:bg-muted/50",
                     selected && isMobile && "bg-primary/10",
@@ -199,10 +262,10 @@ export function CalendarMonthView({
                         inMonth && !selected && !today && "font-medium"
                       )}
                     >
-                      {format(day, "d")}
+                      {formatDayNumber(day)}
                     </span>
                   </div>
-                  {isMobile ? (
+                  {isMobile && !showChips ? (
                     <div className="flex items-center justify-center gap-0.5 flex-wrap">
                       {dayEvents.slice(0, 3).map((ev) => {
                         const calId = getPrimaryCalendarId(ev);
@@ -219,7 +282,7 @@ export function CalendarMonthView({
                       {dayEvents.length > 3 && (
                         <span className="w-1.5 h-1.5 rounded-full bg-muted-foreground/40" />
                       )}
-                      {pendingPreview && isSameDay(pendingPreview.start, day) && (
+                      {pendingPreview && checkIsSameDay(pendingPreview.start, day) && (
                         <span
                           className="w-1.5 h-1.5 rounded-full border border-dashed"
                           style={{ borderColor: calendarMap.get(pendingPreview.calendarId)?.color || "#3b82f6" }}
@@ -232,25 +295,28 @@ export function CalendarMonthView({
             })}
             </div>
 
-            {!isMobile && pendingPreview && (() => {
-              const previewDayIdx = week.findIndex(d => isSameDay(d, pendingPreview.start));
+            {showChips && pendingPreview && (() => {
+              const previewDayIdx = week.findIndex(d => checkIsSameDay(d, pendingPreview.start));
               if (previewDayIdx === -1) return null;
               const previewRow = rowCount;
               const cal = calendarMap.get(pendingPreview.calendarId);
               const color = cal?.color || "#3b82f6";
               return (
-                <div className="absolute inset-x-0 pointer-events-none" style={{ top: 30 }}>
+                <div className="absolute inset-x-0 pointer-events-none" style={{ top: overlayTop }}>
                   <div
                     className="absolute px-0.5"
                     style={{
                       left: `calc(${(previewDayIdx / 7) * 100}% + 1px)`,
                       width: `calc(${(1 / 7) * 100}% - 2px)`,
-                      top: previewRow * 22,
-                      height: 20,
+                      top: previewRow * rowHeight,
+                      height: chipHeight,
                     }}
                   >
                     <div
-                      className="h-full rounded text-[10px] leading-[20px] font-medium px-1.5 truncate border-2 border-dashed"
+                      className={cn(
+                        "h-full rounded text-[10px] font-medium truncate border-2 border-dashed",
+                        isMobile ? "leading-[16px] px-1" : "leading-[20px] px-1.5"
+                      )}
                       style={{ borderColor: color, color, backgroundColor: `${color}10` }}
                     >
                       {pendingPreview.title}
@@ -260,8 +326,8 @@ export function CalendarMonthView({
               );
             })()}
 
-            {!isMobile && segments.length > 0 && (
-              <div className="absolute inset-x-0 pointer-events-none" style={{ top: 30 }}>
+            {showChips && segments.length > 0 && (
+              <div className="absolute inset-x-0 pointer-events-none" style={{ top: overlayTop }}>
                 {segments.map((segment) => {
                   const calId = getPrimaryCalendarId(segment.event);
                   return (
@@ -271,8 +337,8 @@ export function CalendarMonthView({
                       style={{
                         left: `calc(${(segment.startIndex / 7) * 100}% + 1px)`,
                         width: `calc(${(segment.span / 7) * 100}% - 2px)`,
-                        top: segment.row * 22,
-                        height: 20,
+                        top: segment.row * rowHeight,
+                        height: chipHeight,
                       }}
                     >
                       <EventCard
@@ -284,8 +350,9 @@ export function CalendarMonthView({
                         onClick={(rect) => onSelectEvent(segment.event, rect)}
                         onMouseEnter={(rect) => onHoverEvent?.(segment.event, rect)}
                         onMouseLeave={onHoverLeave}
-                        onContextMenu={onContextMenuEvent}
+                        onContextMenu={handleRadialMenuEvent}
                         draggable
+                        className={isMobile ? "text-[10px] px-1" : undefined}
                       />
                     </div>
                   );
@@ -295,6 +362,13 @@ export function CalendarMonthView({
           </div>
         ))}
       </div>
+
+      <RadialMenu
+        items={radialMenuItems}
+        isOpen={radialMenuOpen}
+        position={radialMenuPos}
+        onClose={closeRadialMenu}
+      />
     </div>
   );
 }

components/calendar/calendar-sidebar-panel.tsx

@@ -397,7 +397,7 @@ export function CalendarSidebarPanel({
           <ListTodo className="w-4 h-4 text-muted-foreground" />
           <span>{t('tasks.label')}</span>
           {pendingTaskCount > 0 && (
-            <span className="ml-auto text-xs text-muted-foreground">{pendingTaskCount}</span>
+            <span className="ms-auto text-xs text-muted-foreground">{pendingTaskCount}</span>
           )}
           {overdueTaskCount > 0 && (
             <span className="text-xs text-destructive font-medium">{overdueTaskCount} {t('tasks.filter_overdue').toLowerCase()}</span>
@@ -437,7 +437,7 @@ export function CalendarSidebarPanel({
                           onCreateCalendar();
                         }
                       }}
-                      className="ml-auto p-0.5 rounded text-muted-foreground/70 opacity-0 group-hover:opacity-100 hover:text-foreground hover:bg-muted transition-colors cursor-pointer"
+                      className="ms-auto p-0.5 rounded text-muted-foreground/70 opacity-0 group-hover:opacity-100 hover:text-foreground hover:bg-muted transition-colors cursor-pointer"
                       title={tMgmt('add_calendar')}
                     >
                       <Plus className="w-3 h-3" />
@@ -445,7 +445,7 @@ export function CalendarSidebarPanel({
                   )}
                 </button>
                 {expanded && (
-                  <div className="mt-1 pl-3">
+                  <div className="mt-1 ps-3">
                     {owned.length > 0 && (
                       <div>
                         <div className="px-1 mb-1 text-[10px] font-medium text-muted-foreground/80 uppercase tracking-wider">

components/calendar/calendar-toolbar.tsx

@@ -1,13 +1,14 @@
 "use client";
 
 import { useState, useRef, useEffect } from "react";
-import { useTranslations, useFormatter } from "next-intl";
+import { useTranslations } from "next-intl";
 import { Button } from "@/components/ui/button";
 import { ChevronLeft, ChevronRight, Plus, Upload, CalendarDays, Globe, ChevronDown, ArrowLeft, Menu } from "lucide-react";
-import { addDays, startOfWeek } from "date-fns";
+import { startOfWeek } from "date-fns";
 import { cn } from "@/lib/utils";
 import type { CalendarViewMode } from "@/stores/calendar-store";
 import type { Calendar } from "@/lib/jmap/types";
+import { useCalendarLocale } from "@/hooks/use-calendar-locale";
 
 interface CalendarToolbarProps {
   selectedDate: Date;
@@ -50,7 +51,14 @@ export function CalendarToolbar({
   onMenuClick,
 }: CalendarToolbarProps) {
   const t = useTranslations("calendar");
-  const formatter = useFormatter();
+  const {
+    weekStartsOn,
+    formatMonthYear,
+    formatMonthYearShort,
+    formatWeekRange,
+    formatWeekRangeShort,
+    formatFullDate,
+  } = useCalendarLocale();
   const views: CalendarViewMode[] = enableCalendarTasks
     ? ["month", "week", "day", "agenda", "tasks"]
     : ["month", "week", "day", "agenda"];
@@ -72,28 +80,22 @@ export function CalendarToolbar({
     switch (viewMode) {
       case "month":
         return isMobile
-          ? formatter.dateTime(selectedDate, { month: "short", year: "numeric" })
-          : formatter.dateTime(selectedDate, { month: "long", year: "numeric" });
+          ? formatMonthYearShort(selectedDate)
+          : formatMonthYear(selectedDate);
       case "week": {
-        const ws = startOfWeek(selectedDate, { weekStartsOn: firstDayOfWeek as 0 | 1 });
-        const we = addDays(ws, 6);
-        if (isMobile) {
-          return `${formatter.dateTime(ws, { month: "short", day: "numeric" })} – ${formatter.dateTime(we, { day: "numeric" })}`;
-        }
-        const sameMonth = ws.getMonth() === we.getMonth();
-        if (sameMonth) {
-          return `${formatter.dateTime(ws, { month: "short", day: "numeric" })} – ${formatter.dateTime(we, { day: "numeric" })}, ${we.getFullYear()}`;
-        }
-        return `${formatter.dateTime(ws, { month: "short", day: "numeric" })} – ${formatter.dateTime(we, { month: "short", day: "numeric" })}, ${we.getFullYear()}`;
+        const ws = startOfWeek(selectedDate, { weekStartsOn });
+        return isMobile
+          ? formatWeekRangeShort(ws)
+          : formatWeekRange(ws);
       }
       case "day":
         return isMobile
-          ? formatter.dateTime(selectedDate, { weekday: "short", month: "short", day: "numeric" })
-          : formatter.dateTime(selectedDate, { weekday: "long", month: "long", day: "numeric", year: "numeric" });
+          ? formatFullDate(selectedDate)
+          : formatFullDate(selectedDate);
       case "agenda":
         return isMobile
-          ? formatter.dateTime(selectedDate, { month: "short", year: "numeric" })
-          : formatter.dateTime(selectedDate, { month: "long", year: "numeric" });
+          ? formatMonthYearShort(selectedDate)
+          : formatMonthYear(selectedDate);
       case "tasks":
         return t("views.tasks");
     }
@@ -124,7 +126,7 @@ export function CalendarToolbar({
           variant="ghost"
           size="icon"
           onClick={onMenuClick}
-          className="h-8 w-8 -ml-1 mr-1"
+          className="h-8 w-8 -ms-1 me-1"
           aria-label={t("nav_open_menu")}
         >
           <Menu className="w-4 h-4" />
@@ -138,7 +140,7 @@ export function CalendarToolbar({
             {onMenuClick && (
               <button
                 onClick={onMenuClick}
-                className="p-1.5 -ml-1 rounded-md hover:bg-muted transition-colors touch-manipulation"
+                className="p-1.5 -ms-1 rounded-md hover:bg-muted transition-colors touch-manipulation"
                 aria-label={t("nav_open_menu")}
               >
                 <Menu className="w-4 h-4" />
@@ -147,7 +149,7 @@ export function CalendarToolbar({
             {onNavigateBack && (
               <button
                 onClick={onNavigateBack}
-                className="p-1.5 -ml-1 rounded-md hover:bg-muted transition-colors touch-manipulation"
+                className="p-1.5 -ms-1 rounded-md hover:bg-muted transition-colors touch-manipulation"
                 aria-label={t("back_to_month")}
               >
                 <ArrowLeft className="w-4 h-4" />
@@ -162,7 +164,7 @@ export function CalendarToolbar({
             <button onClick={onNext} className="p-1.5 rounded-md hover:bg-muted transition-colors touch-manipulation" aria-label={t("nav_next")}>
               <ChevronRight className="w-4 h-4" />
             </button>
-            <Button variant="ghost" size="sm" onClick={onToday} className="touch-manipulation text-xs h-7 px-2 ml-0.5">
+            <Button variant="ghost" size="sm" onClick={onToday} className="touch-manipulation text-xs h-7 px-2 ms-0.5">
               {t("views.today")}
             </Button>
           </div>
@@ -199,7 +201,7 @@ export function CalendarToolbar({
                   <CalendarDays className="w-4 h-4" />
                 </button>
                 {showCalendarDropdown && (
-                  <div className="absolute top-full right-0 mt-1 z-50 bg-popover border border-border rounded-lg shadow-lg p-2 min-w-[180px]">
+                  <div className="absolute top-full end-0 mt-1 z-50 bg-popover border border-border rounded-lg shadow-lg p-2 min-w-[180px]">
                     <h3 className="text-xs font-medium text-muted-foreground uppercase tracking-wider mb-2 px-1">
                       {t("my_calendars")}
                     </h3>
@@ -284,7 +286,7 @@ export function CalendarToolbar({
       {/* ── DESKTOP TOOLBAR ── */}
       {!isMobile && (
         <div className="flex items-center gap-1">
-          <Button variant="outline" size="sm" onClick={onToday} className="h-8 mr-1">
+          <Button variant="outline" size="sm" onClick={onToday} className="h-8 me-1">
             {t("views.today")}
           </Button>
           <Button variant="ghost" size="icon" className="h-8 w-8" onClick={onPrev} aria-label={t("nav_prev")}>
@@ -293,7 +295,7 @@ export function CalendarToolbar({
           <Button variant="ghost" size="icon" className="h-8 w-8" onClick={onNext} aria-label={t("nav_next")}>
             <ChevronRight className="w-4 h-4" />
           </Button>
-          <span className="text-base font-semibold ml-2 select-none">
+          <span className="text-base font-semibold ms-2 select-none">
             {getDateLabel()}
           </span>
         </div>
@@ -328,12 +330,12 @@ export function CalendarToolbar({
       {(onImport || onSubscribe) && !isMobile && (
         <div className="relative" ref={importDropdownRef}>
           <Button variant="outline" size="sm" className="h-8" onClick={() => setShowImportDropdown((v) => !v)}>
-            <Upload className="w-4 h-4 mr-1" />
+            <Upload className="w-4 h-4 me-1" />
             {t("import.title")}
-            <ChevronDown className="w-3 h-3 ml-1" />
+            <ChevronDown className="w-3 h-3 ms-1" />
           </Button>
           {showImportDropdown && (
-            <div className="absolute top-full right-0 mt-1 z-50 bg-background border border-border rounded-lg shadow-lg p-1 min-w-[180px]">
+            <div className="absolute top-full end-0 mt-1 z-50 bg-background border border-border rounded-lg shadow-lg p-1 min-w-[180px]">
               {onImport && (
                 <button
                   onClick={() => { onImport(); setShowImportDropdown(false); }}
@@ -359,7 +361,7 @@ export function CalendarToolbar({
 
       {!isMobile && (
         <Button size="sm" className="h-8" onClick={onCreateEvent} data-tour="create-event-button">
-          <Plus className="w-4 h-4 mr-1" />
+          <Plus className="w-4 h-4 me-1" />
           {t("events.create")}
         </Button>
       )}

components/calendar/calendar-week-view.tsx

@@ -58,7 +58,7 @@ export function CalendarWeekView({
   const intlFormatter = useFormatter();
   const scrollRef = useRef<HTMLDivElement>(null);
   const rootRef = useRef<HTMLDivElement>(null);
-  const weekStart = (firstDayOfWeek === 0 ? 0 : 1) as 0 | 1;
+  const weekStart = (firstDayOfWeek === 0 ? 0 : firstDayOfWeek === 6 ? 6 : 1) as 0 | 1 | 6;
 
   const weekDays = useMemo(() => {
     const start = startOfWeek(selectedDate, { weekStartsOn: weekStart });
@@ -211,7 +211,7 @@ export function CalendarWeekView({
       <div className={cn("flex min-h-0 flex-col flex-1", isMobile && "min-w-[880px]")}>      {hasAllDay && (
         <div className="flex border-b border-border">
           <div
-            className={cn("flex-shrink-0 text-[10px] text-muted-foreground p-1 text-right", isMobile ? "w-10 sticky left-0 z-10 bg-background" : "w-14")}
+            className={cn("flex-shrink-0 text-[10px] text-muted-foreground p-1 text-end", isMobile ? "w-10 sticky left-0 z-10 bg-background" : "w-14")}
             style={{ minHeight: Math.max(28, (allDayRowCount + taskRowCount) * 24 + 4) }}
           >
             {t("events.all_day")}
@@ -306,7 +306,7 @@ export function CalendarWeekView({
 
       <div className="flex border-b border-border" role="row">
         <div className={cn("flex-shrink-0", isMobile ? "w-10 sticky left-0 z-10 bg-background" : "w-14")} />
-        <div className="flex-1 border-l border-border grid grid-cols-7">
+        <div className="flex-1 border-s border-border grid grid-cols-7">
           {weekDays.map((day) => {
             const todayCol = isToday(day);
             const selected = isSameDay(day, selectedDate);
@@ -318,7 +318,7 @@ export function CalendarWeekView({
                 role="columnheader"
                 aria-label={fullLabel}
                 className={cn(
-                  "text-center py-2 text-sm border-r border-border last:border-r-0 transition-colors touch-manipulation",
+                  "text-center py-2 text-sm border-e border-border last:border-e-0 transition-colors touch-manipulation",
                   "hover:bg-muted/50",
                   todayCol && "font-bold",
                 )}
@@ -345,7 +345,7 @@ export function CalendarWeekView({
             {HOURS.map((h) => (
               <div
                 key={h}
-                className="relative text-muted-foreground text-right pr-2"
+                className="relative text-muted-foreground text-end pe-2"
                 style={{ height: HOUR_HEIGHT }}
               >
                 {h > 0 && (
@@ -357,7 +357,7 @@ export function CalendarWeekView({
             ))}
           </div>
 
-          <div className="flex-1 border-l border-border relative grid grid-cols-7">
+          <div className="flex-1 border-s border-border relative grid grid-cols-7">
             {weekDays.map((day) => {
               const key = format(day, "yyyy-MM-dd");
               const dayEvents = timedEvents.get(key) || [];
@@ -367,7 +367,7 @@ export function CalendarWeekView({
               return (
                 <div
                   key={key}
-                  className="relative border-r border-border last:border-r-0"
+                  className="relative border-e border-border last:border-e-0"
                   role="row"
                   aria-label={intlFormatter.dateTime(day, { weekday: "long", month: "long", day: "numeric" })}
                   onPointerDown={(e) => handleGridPointerDown(e, key, day)}
@@ -448,7 +448,7 @@ export function CalendarWeekView({
                       style={{ top: (nowMinutes / 60) * HOUR_HEIGHT }}
                     >
                       <div className="flex items-center">
-                        <div className="w-2 h-2 rounded-full bg-destructive -ml-1" />
+                        <div className="w-2 h-2 rounded-full bg-destructive -ms-1" />
                         <div className="flex-1 h-px bg-destructive" />
                       </div>
                     </div>
@@ -482,7 +482,7 @@ export function CalendarWeekView({
                       style={{ top: (dropTarget.minutes / 60) * HOUR_HEIGHT }}
                     >
                       <div className="flex items-center">
-                        <div className="w-2 h-2 rounded-full bg-primary -ml-1" />
+                        <div className="w-2 h-2 rounded-full bg-primary -ms-1" />
                         <div className="flex-1 h-0.5 bg-primary rounded-full" />
                       </div>
                       <div className="absolute -top-4 left-2 text-[10px] font-medium text-primary bg-background/90 px-1 rounded shadow-sm">

components/calendar/create-calendar-modal.tsx

@@ -137,7 +137,7 @@ export function CreateCalendarModal({ client, onClose }: CreateCalendarModalProp
           <Button onClick={handleSubmit} disabled={!isValid || isSubmitting}>
             {isSubmitting ? (
               <>
-                <Loader2 className="w-4 h-4 animate-spin mr-2" />
+                <Loader2 className="w-4 h-4 animate-spin me-2" />
                 {tCommon("loading")}
               </>
             ) : (

components/calendar/event-card.tsx

@@ -88,7 +88,10 @@ export function EventCard({ event, calendar, variant, onClick, onMouseEnter, onM
     try { return format(d, fmt); } catch { return "--:--"; }
   };
   const timeString = `${safeFormat(startDate, timeFmt)} – ${safeFormat(endTime, timeFmt)}`;
-  const ariaLabel = `${event.title || t("events.no_title")}, ${timeString}${calendarName ? `, ${calendarName}` : ""}`;
+  // iTIP CANCEL marks the attendee's copy with status "cancelled" instead of
+  // deleting it (#572) - render it struck through and dimmed.
+  const isCancelled = event.status === "cancelled";
+  const ariaLabel = `${event.title || t("events.no_title")}, ${timeString}${calendarName ? `, ${calendarName}` : ""}${isCancelled ? `, ${t("detail.cancelled")}` : ""}`;
 
   const handleDragStart = useCallback((e: DragEvent) => {
     e.stopPropagation();
@@ -131,11 +134,12 @@ export function EventCard({ event, calendar, variant, onClick, onMouseEnter, onM
         aria-label={ariaLabel}
         {...dragProps}
         className={cn(
-          "flex items-center gap-1 w-full text-left text-xs px-1 py-0.5 rounded truncate",
+          "flex items-center gap-1 w-full text-start text-xs px-1 py-0.5 rounded truncate",
           "min-h-[44px] sm:min-h-0",
           "hover:opacity-80 transition-opacity",
           isSelected && "ring-2 ring-primary",
           isBeingDragged && "opacity-50",
+          isCancelled && !isBeingDragged && "opacity-60",
           className
         )}
         style={{ backgroundColor: `${color}20`, color, ...style }}
@@ -144,7 +148,7 @@ export function EventCard({ event, calendar, variant, onClick, onMouseEnter, onM
           className="w-1.5 h-1.5 rounded-full flex-shrink-0"
           style={{ backgroundColor: color }}
         />
-        <span className="truncate">{event.title || t("events.no_title")}</span>
+        <span className={cn("truncate", isCancelled && "line-through")}>{event.title || t("events.no_title")}</span>
       </button>
     );
   }
@@ -159,12 +163,13 @@ export function EventCard({ event, calendar, variant, onClick, onMouseEnter, onM
         aria-label={ariaLabel}
         {...dragProps}
         className={cn(
-          "w-full h-full text-left rounded-r px-1.5 py-0.5 text-xs overflow-hidden",
+          "w-full h-full text-start rounded-r px-1.5 py-0.5 text-xs overflow-hidden",
           "hover:opacity-90 transition-opacity cursor-pointer",
           continuesAfter && "rounded-r-sm",
-          continuesAfter && "pr-2",
+          continuesAfter && "pe-2",
           isSelected && "ring-2 ring-primary",
           isBeingDragged && "opacity-50",
+          isCancelled && !isBeingDragged && "opacity-60",
           className
         )}
         style={{ backgroundColor: `${color}24`, borderLeft: `3px solid ${color}`, color, ...style }}
@@ -173,7 +178,7 @@ export function EventCard({ event, calendar, variant, onClick, onMouseEnter, onM
           {showTimeInMonthView && !event.showWithoutTime && (
             <span className="flex-shrink-0 opacity-80">{format(startDate, timeFmt)}</span>
           )}
-          <span className="truncate font-medium">{event.title || t("events.no_title")}</span>
+          <span className={cn("truncate font-medium", isCancelled && "line-through")}>{event.title || t("events.no_title")}</span>
         </div>
       </button>
     );
@@ -189,15 +194,16 @@ export function EventCard({ event, calendar, variant, onClick, onMouseEnter, onM
       {...dragProps}
       data-calendar-event
       className={cn(
-        "w-full h-full text-left rounded-r px-1.5 py-0.5 text-xs overflow-hidden",
+        "w-full h-full text-start rounded-r px-1.5 py-0.5 text-xs overflow-hidden",
         "hover:opacity-90 transition-opacity cursor-pointer",
         isSelected && "ring-2 ring-primary",
         isBeingDragged && "opacity-50",
+        isCancelled && !isBeingDragged && "opacity-60",
         className
       )}
       style={{ backgroundColor: `${color}30`, borderLeft: `3px solid ${color}`, color, ...style }}
     >
-      <div className="font-medium truncate">{event.title || t("events.no_title")}</div>
+      <div className={cn("font-medium truncate", isCancelled && "line-through")}>{event.title || t("events.no_title")}</div>
       {!event.showWithoutTime && (
         <div className="opacity-80 text-[10px]">
           {timeString}

components/calendar/event-detail-popover.tsx

@@ -6,7 +6,7 @@ import { createPortal } from "react-dom";
 import { Button } from "@/components/ui/button";
 import {
   X, Clock, MapPin, Video, Users, Repeat, Bell, AlignLeft,
-  Pencil, Trash2, Copy, Send, Check,
+  Pencil, Trash2, Copy, Send, Check, ExternalLink, Globe,
 } from "lucide-react";
 import { format, isSameDay } from "date-fns";
 import { cn } from "@/lib/utils";
@@ -107,6 +107,25 @@ function getRecurrenceLabel(event: CalendarEvent, t: ReturnType<typeof useTransl
   return buildRecurrenceSummary(event.recurrenceRules[0], t, locale);
 }
 
+const URL_REGEX = /(https?:\/\/[^\s<]+[^\s<.,;:!?'")\]}>])/g;
+
+function linkifyText(text: string): (string | { url: string })[] {
+  const parts: (string | { url: string })[] = [];
+  let lastIndex = 0;
+  let match: RegExpExecArray | null;
+  while ((match = URL_REGEX.exec(text)) !== null) {
+    if (match.index > lastIndex) {
+      parts.push(text.slice(lastIndex, match.index));
+    }
+    parts.push({ url: match[1] });
+    lastIndex = match.index + match[1].length;
+  }
+  if (lastIndex < text.length) {
+    parts.push(text.slice(lastIndex));
+  }
+  return parts;
+}
+
 export function EventDetailPopover({
   event,
   calendar,
@@ -290,20 +309,23 @@ export function EventDetailPopover({
               className="w-2.5 h-2.5 rounded-full flex-shrink-0"
               style={{ backgroundColor: color }}
             />
-            <h3 className="text-base font-semibold truncate text-foreground">
+            <h3 className={cn(
+              "text-base font-semibold truncate text-foreground",
+              event.status === "cancelled" && "line-through text-muted-foreground"
+            )}>
               {event.title || t("events.no_title")}
             </h3>
           </div>
           {calendar && (
-            <p className="text-xs text-muted-foreground mt-0.5 pl-[18px]">
+            <p className="text-xs text-muted-foreground mt-0.5 ps-[18px]">
               {calendar.name}
               {event.status === "tentative" && (
-                <span className="ml-2 inline-flex items-center px-1.5 py-0.5 rounded text-[10px] font-medium bg-warning/15 text-warning">
+                <span className="ms-2 inline-flex items-center px-1.5 py-0.5 rounded text-[10px] font-medium bg-warning/15 text-warning">
                   {t("detail.tentative")}
                 </span>
               )}
               {event.status === "cancelled" && (
-                <span className="ml-2 inline-flex items-center px-1.5 py-0.5 rounded text-[10px] font-medium bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400 line-through">
+                <span className="ms-2 inline-flex items-center px-1.5 py-0.5 rounded text-[10px] font-medium bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400 line-through">
                   {t("detail.cancelled")}
                 </span>
               )}
@@ -343,13 +365,13 @@ export function EventDetailPopover({
                 <>
                   <div className="font-medium text-foreground">
                     {formatEventDate(startDate)}
-                    <span className="ml-1.5 font-normal text-muted-foreground">
+                    <span className="ms-1.5 font-normal text-muted-foreground">
                       {formatTime(startDate)}
                     </span>
                   </div>
                   <div className="font-medium text-foreground">
                     {formatEventDate(endDate)}
-                    <span className="ml-1.5 font-normal text-muted-foreground">
+                    <span className="ms-1.5 font-normal text-muted-foreground">
                       {formatTime(endDate)}
                     </span>
                   </div>
@@ -364,11 +386,11 @@ export function EventDetailPopover({
                   {formatEventDate(startDate)}
                 </span>
                 {event.showWithoutTime ? (
-                  <span className="text-muted-foreground ml-1.5">{t("events.all_day")}</span>
+                  <span className="text-muted-foreground ms-1.5">{t("events.all_day")}</span>
                 ) : (
                   <div className="text-muted-foreground">
                     {formatTime(startDate)} – {formatTime(endDate)}
-                    <span className="ml-1.5 text-xs">({formatDurationDisplay(durationMinutes)})</span>
+                    <span className="ms-1.5 text-xs">({formatDurationDisplay(durationMinutes)})</span>
                   </div>
                 )}
               </>
@@ -380,21 +402,34 @@ export function EventDetailPopover({
         {locationName && (
           <div className="flex items-start gap-2.5">
             <MapPin className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
-            {/^https?:\/\//i.test(locationName) ? (
-              <a
-                href={locationName}
-                target="_blank"
-                rel="noreferrer"
-                className="text-sm text-primary hover:underline truncate"
-                title={locationName}
-              >
-                {(() => {
-                  try { return new URL(locationName).hostname; } catch { return locationName; }
-                })()}
-              </a>
-            ) : (
-              <span className="text-sm text-foreground">{locationName}</span>
-            )}
+            <div className="min-w-0">
+              {/^https?:\/\//i.test(locationName) ? (
+                <a
+                  href={locationName}
+                  target="_blank"
+                  rel="noreferrer"
+                  className="text-sm text-primary hover:underline truncate block"
+                  title={locationName}
+                >
+                  {(() => {
+                    try { return new URL(locationName).hostname; } catch { return locationName; }
+                  })()}
+                </a>
+              ) : (
+                <>
+                  <span className="text-sm text-foreground">{locationName}</span>
+                  <a
+                    href={`https://maps.google.com/?q=${encodeURIComponent(locationName)}`}
+                    target="_blank"
+                    rel="noreferrer"
+                    className="text-xs text-primary hover:underline mt-0.5 inline-flex items-center gap-1"
+                  >
+                    <ExternalLink className="w-3 h-3" />
+                    View on Map
+                  </a>
+                </>
+              )}
+            </div>
           </div>
         )}
 
@@ -410,6 +445,8 @@ export function EventDetailPopover({
               title={virtualLocation}
             >
               {(() => {
+                const isVncMeeting = event.links?.["vnctalk-meeting"];
+                if (isVncMeeting) return "Join VNCtalk Meeting";
                 try {
                   return new URL(virtualLocation).hostname;
                 } catch {
@@ -420,6 +457,30 @@ export function EventDetailPopover({
           </div>
         )}
 
+        {/* VNCtalk Meeting "Join" button (when meeting via links) */}
+        {!virtualLocation && event.links?.["vnctalk-meeting"] && (
+          <div className="flex items-start gap-2.5">
+            <Video className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
+            <a
+              href={event.links["vnctalk-meeting"].href}
+              target="_blank"
+              rel="noreferrer"
+              className="text-sm text-primary hover:underline inline-flex items-center gap-1"
+            >
+              <ExternalLink className="w-3.5 h-3.5" />
+              Join VNCtalk Meeting
+            </a>
+          </div>
+        )}
+
+        {/* Timezone */}
+        {!event.showWithoutTime && event.timeZone && (
+          <div className="flex items-start gap-2.5">
+            <Globe className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
+            <span className="text-sm text-muted-foreground">{event.timeZone}</span>
+          </div>
+        )}
+
         {/* Participants */}
         {hasParticipants && (
           <div className="flex items-start gap-2.5">
@@ -434,7 +495,7 @@ export function EventDetailPopover({
                     <span className="truncate text-foreground">
                       {p.name || p.email}
                       {p.isOrganizer && (
-                        <span className="text-muted-foreground ml-1">
+                        <span className="text-muted-foreground ms-1">
                           ({t("participants.organizer").toLowerCase()})
                         </span>
                       )}
@@ -473,7 +534,21 @@ export function EventDetailPopover({
           <div className="flex items-start gap-2.5">
             <AlignLeft className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
             <p className="text-sm text-muted-foreground whitespace-pre-line line-clamp-3">
-              {event.description}
+              {linkifyText(event.description).map((part, i) =>
+                typeof part === "string" ? (
+                  <span key={i}>{part}</span>
+                ) : (
+                  <a
+                    key={i}
+                    href={part.url}
+                    target="_blank"
+                    rel="noreferrer"
+                    className="text-primary hover:underline"
+                  >
+                    {part.url}
+                  </a>
+                )
+              )}
             </p>
           </div>
         )}
@@ -512,7 +587,7 @@ export function EventDetailPopover({
                   disabled={!noteText.trim() || isSavingNote}
                   className="h-7 text-xs"
                 >
-                  <Send className="w-3 h-3 mr-1" />
+                  <Send className="w-3 h-3 me-1" />
                   {t("detail.save_note")}
                 </Button>
               </div>
@@ -546,7 +621,7 @@ export function EventDetailPopover({
                   : "text-success border-success/30 hover:bg-success/10"
               }
             >
-              {userCurrentStatus === "accepted" && <Check className="w-3.5 h-3.5 mr-1" />}
+              {userCurrentStatus === "accepted" && <Check className="w-3.5 h-3.5 me-1" />}
               {t("participants.accepted")}
             </Button>
             <Button
@@ -559,7 +634,7 @@ export function EventDetailPopover({
                   : "border border-warning/30 text-warning hover:bg-warning/10"
               }
             >
-              {userCurrentStatus === "tentative" && <Check className="w-3.5 h-3.5 mr-1" />}
+              {userCurrentStatus === "tentative" && <Check className="w-3.5 h-3.5 me-1" />}
               {t("participants.tentative")}
             </Button>
             <Button
@@ -572,7 +647,7 @@ export function EventDetailPopover({
                   : "text-destructive hover:bg-destructive/10"
               }
             >
-              {userCurrentStatus === "declined" && <Check className="w-3.5 h-3.5 mr-1" />}
+              {userCurrentStatus === "declined" && <Check className="w-3.5 h-3.5 me-1" />}
               {t("participants.declined")}
             </Button>
           </div>
@@ -606,7 +681,7 @@ export function EventDetailPopover({
         ) : (
           <>
             <Button variant="default" size="sm" onClick={onEdit} className="h-7 text-xs">
-              <Pencil className="w-3.5 h-3.5 mr-1" />
+              <Pencil className="w-3.5 h-3.5 me-1" />
               {t("events.edit")}
             </Button>
             <Button
@@ -616,7 +691,7 @@ export function EventDetailPopover({
               className="h-7 text-xs"
               title={t("events.duplicate")}
             >
-              <Copy className="w-3.5 h-3.5 mr-1" />
+              <Copy className="w-3.5 h-3.5 me-1" />
               {t("events.duplicate")}
             </Button>
             <div className="flex-1" />

components/calendar/event-modal.tsx

@@ -4,13 +4,14 @@ import { useState, useEffect, useCallback, useRef, useMemo } from "react";
 import { useTranslations, useLocale } from "next-intl";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
-import { X, Trash2, Check, Users, CalendarDays, Copy, Pencil, Clock, MapPin, Video, Repeat, Bell, AlignLeft, Plus } from "lucide-react";
+import { X, Trash2, Check, Users, CalendarDays, Copy, Pencil, Clock, MapPin, Video, Repeat, Bell, AlignLeft, Plus, Eye, EyeOff, ExternalLink, Reply, ReplyAll, Globe, Building2 } from "lucide-react";
 import { format, parseISO, addHours, addDays, isSameDay } from "date-fns";
 import type { CalendarEvent, Calendar, CalendarParticipant, CalendarEventAlert, CalendarRecurrenceRule } from "@/lib/jmap/types";
 import { RecurrenceEditor, buildRecurrenceSummary, isSimpleRecurrenceRule } from "./recurrence-editor";
 import { parseDuration, getEventColor } from "./event-card";
 import { buildAllDayDuration, getEventDisplayEndDate, getEventEndDate, getEventStartDate, getPrimaryCalendarId } from "@/lib/calendar-utils";
 import { ParticipantInput, type ParticipantInputHandle } from "./participant-input";
+import { FreeBusyView } from "./free-busy-view";
 import {
   isOrganizer,
   getUserParticipantId,
@@ -25,6 +26,10 @@ import { generateUUID } from "@/lib/utils";
 import { useFormatEventDate } from "@/hooks/use-format-event-date";
 import { calendarHooks } from "@/lib/plugin-hooks";
 import type { ConflictWarning } from "@/lib/plugin-types";
+import { RecipientPopover } from "@/components/email/recipient-popover";
+import { useProTabStore } from "@/stores/pro-tab-store";
+import { ResourcePicker } from "./resource-picker";
+import { useResourceStore } from "@/stores/resource-store";
 
 export interface PendingEventPreview {
   start: Date;
@@ -49,6 +54,10 @@ interface EventModalProps {
   onPreviewChange?: (preview: PendingEventPreview | null) => void;
   currentUserEmails?: string[];
   isMobile?: boolean;
+  prefillTitle?: string;
+  prefillDescription?: string;
+  prefillParticipants?: { name?: string; email: string }[];
+  prefillDate?: string;
 }
 
 function formatDateInput(d: Date): string {
@@ -59,6 +68,25 @@ function formatTimeInput(d: Date): string {
   return format(d, "HH:mm");
 }
 
+const URL_REGEX = /(https?:\/\/[^\s<]+[^\s<.,;:!?'")\]}>])/g;
+
+function linkifyText(text: string): (string | { url: string })[] {
+  const parts: (string | { url: string })[] = [];
+  let lastIndex = 0;
+  let match: RegExpExecArray | null;
+  while ((match = URL_REGEX.exec(text)) !== null) {
+    if (match.index > lastIndex) {
+      parts.push(text.slice(lastIndex, match.index));
+    }
+    parts.push({ url: match[1] });
+    lastIndex = match.index + match[1].length;
+  }
+  if (lastIndex < text.length) {
+    parts.push(text.slice(lastIndex));
+  }
+  return parts;
+}
+
 function buildDuration(startDate: Date, endDate: Date): string {
   const diffMs = endDate.getTime() - startDate.getTime();
   const totalMinutes = Math.max(0, Math.floor(diffMs / 60000));
@@ -178,6 +206,10 @@ export function EventModal({
   onPreviewChange,
   currentUserEmails = [],
   isMobile = false,
+  prefillTitle,
+  prefillDescription,
+  prefillParticipants,
+  prefillDate,
 }: EventModalProps) {
   const t = useTranslations("calendar");
   const locale = useLocale();
@@ -228,6 +260,10 @@ export function EventModal({
       d.setHours(now.getHours() + 1, 0, 0, 0);
       return d;
     }
+    if (prefillDate) {
+      const d = new Date(prefillDate);
+      if (!isNaN(d.getTime())) return d;
+    }
     const d = new Date();
     d.setHours(d.getHours() + 1, 0, 0, 0);
     return d;
@@ -244,8 +280,8 @@ export function EventModal({
     return addHours(getInitialStart(), 1);
   };
 
-  const [title, setTitle] = useState(event?.title || "");
-  const [description, setDescription] = useState(event?.description || "");
+  const [title, setTitle] = useState(event?.title || prefillTitle || "");
+  const [description, setDescription] = useState(event?.description || prefillDescription || "");
   const [location, setLocation] = useState(
     event?.locations ? Object.values(event.locations)[0]?.name || "" : ""
   );
@@ -328,13 +364,29 @@ export function EventModal({
   const [isSaving, setIsSaving] = useState(false);
 
   const [attendees, setAttendees] = useState<{ name: string; email: string }[]>(() => {
-    if (!event?.participants) return [];
+    if (!event?.participants) {
+      if (prefillParticipants && prefillParticipants.length > 0) {
+        return prefillParticipants.map(p => ({ name: p.name || "", email: p.email }));
+      }
+      return [];
+    }
     return existingParticipants
       .filter(p => !p.isOrganizer)
       .map(p => ({ name: p.name, email: p.email }));
   });
   const [sendInvitations, setSendInvitations] = useState(true);
+  const [showFreeBusy, setShowFreeBusy] = useState(false);
   const participantInputRef = useRef<ParticipantInputHandle>(null);
+  const [createVncMeeting, setCreateVncMeeting] = useState(false);
+  const [meetingCreating, setMeetingCreating] = useState(false);
+  const [timezone, setTimezone] = useState(() => {
+    if (event?.timeZone) return event.timeZone;
+    try { return Intl.DateTimeFormat().resolvedOptions().timeZone; } catch { return "UTC"; }
+  });
+  const openComposeTab = useProTabStore((s) => s.openComposeTab);
+
+  const resourceStore = useResourceStore();
+  const [showResources, setShowResources] = useState(false);
 
   // Plugin transform: collect conflict warnings for the current event form.
   // Re-runs (debounced) whenever fields that affect scheduling change.
@@ -361,6 +413,13 @@ export function EventModal({
     return () => { cancelled = true; clearTimeout(t); };
   }, [title, description, startDate, startTime, endDate, endTime, allDay, location, virtualLocation, calendarId]);
 
+  useEffect(() => {
+    if (event?.id) {
+      resourceStore.fetchEventBookings(event.id);
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [event?.id]);
+
   // Report live preview to parent for grid outline
   useEffect(() => {
     if (!onPreviewChange || isEdit) return;
@@ -416,7 +475,7 @@ export function EventModal({
       duration = buildDuration(start, end);
     }
 
-    const timeZone = Intl.DateTimeFormat().resolvedOptions().timeZone;
+    const timeZone = timezone;
 
     const data: Partial<CalendarEvent> = {
       title: trimmedTitle,
@@ -522,25 +581,84 @@ export function EventModal({
         { name: organizerName, email: organizerEmail },
         effectiveAttendees
       ) as Record<string, CalendarParticipant>;
-      data.replyTo = { imip: `mailto:${organizerEmail}` };
       // Stalwart (calcard) derives the iCalendar ORGANIZER property solely from
       // organizerCalendarAddress; without it no ORGANIZER is emitted and iTIP
       // scheduling is silently skipped (NoSchedulingInfo), so no invites are sent.
+      // The RFC 8984 replyTo property is retired in jscalendarbis and ignored.
       data.organizerCalendarAddress = `mailto:${organizerEmail}`;
     } else if (effectiveAttendees.length === 0 && event?.participants) {
       data.participants = null;
+      // Also clear the retired replyTo that older releases (<= 1.7.6) wrote.
       data.replyTo = null;
       data.organizerCalendarAddress = null;
     }
 
+    // VNCtalk meeting creation
+    if (createVncMeeting && effectiveAttendees.length > 0 && !allDay) {
+      setMeetingCreating(true);
+      try {
+        const vncRes = await fetch("/api/vnctalk/meeting", {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify({
+            name: trimmedTitle,
+            start: startStr,
+            end: allDay
+              ? `${endDate}T23:59:59`
+              : `${endDate}T${endTime}:00`,
+            invitees: effectiveAttendees.map((a: { email: string }) => a.email),
+            description: description.trim() || undefined,
+          }),
+        });
+        if (vncRes.ok) {
+          const { meetingUrl, meetingId } = await vncRes.json();
+          data.virtualLocations = {
+            vl1: {
+              "@type": "VirtualLocation",
+              name: "VNCtalk Meeting",
+              description: `Meeting ID: ${meetingId}`,
+              uri: meetingUrl,
+              features: null,
+            },
+          };
+          data.links = {
+            "vnctalk-meeting": {
+              "@type": "Link",
+              href: meetingUrl,
+              cid: meetingId,
+              contentType: null,
+              size: null,
+              rel: "vnctalk-meeting",
+              display: null,
+              title: "VNCtalk Meeting",
+            },
+          };
+        }
+      } catch (err) {
+        console.error("Failed to create VNCtalk meeting:", err);
+      } finally {
+        setMeetingCreating(false);
+      }
+    }
+
     const shouldSendScheduling = effectiveAttendees.length > 0 && sendInvitations;
     setIsSaving(true);
     try {
       await onSave(data, shouldSendScheduling);
+      if (resourceStore.selectedResources.length > 0) {
+        const startStr = allDay ? `${startDate}T00:00:00` : `${startDate}T${startTime}:00`;
+        const endStr = allDay ? `${endDate}T23:59:59` : `${endDate}T${endTime}:00`;
+        const eventRef = event?.id || data.uid;
+        await resourceStore.bookSelectedResources(
+          startStr,
+          endStr,
+          eventRef,
+        );
+      }
     } finally {
       setIsSaving(false);
     }
-  }, [title, description, location, virtualLocation, startDate, startTime, endDate, endTime, allDay, calendarId, recurrence, customRule, alertRows, attendees, sendInvitations, currentUserEmails, existingParticipants, event, onSave, isSaving]);
+  }, [title, description, location, virtualLocation, startDate, startTime, endDate, endTime, allDay, calendarId, recurrence, customRule, alertRows, attendees, sendInvitations, currentUserEmails, existingParticipants, event, onSave, isSaving, createVncMeeting, timezone, resourceStore]);
 
   const handleRsvp = useCallback((status: CalendarParticipant['participationStatus']) => {
     if (!event || !userParticipantId || !onRsvp) return;
@@ -574,6 +692,30 @@ export function EventModal({
     onDuplicate(data);
   }, [event, onDuplicate]);
 
+  const handleReply = useCallback((replyAll: boolean) => {
+    if (!event) return;
+    const participants = getParticipantList(event);
+    const recipientEmails = replyAll
+      ? participants.map((p) => ({ email: p.email, name: p.name }))
+      : (() => {
+          const org = participants.find((p) => p.isOrganizer);
+          return org ? [{ email: org.email, name: org.name }] : [];
+        })();
+    if (recipientEmails.length === 0) return;
+    openComposeTab({
+      sessionId: Date.now(),
+      mode: replyAll ? "replyAll" : "reply",
+      title: `Re: ${event.title}`,
+      replyTo: {
+        subject: `Re: ${event.title}`,
+        to: recipientEmails,
+      },
+    });
+  }, [event, openComposeTab]);
+
+  const handleReplyAll = useCallback(() => handleReply(true), [handleReply]);
+  const handleReplySingle = useCallback(() => handleReply(false), [handleReply]);
+
   const modalRef = useRef<HTMLDivElement>(null);
 
   useEffect(() => {
@@ -665,11 +807,11 @@ export function EventModal({
                   <div className="text-sm">
                     <div>
                       <span className="font-medium">{formatEventDate(startD)}</span>
-                      <span className="text-muted-foreground ml-2">{format(startD, timeDisplayFmt)}</span>
+                      <span className="text-muted-foreground ms-2">{format(startD, timeDisplayFmt)}</span>
                     </div>
                     <div>
                       <span className="font-medium">{formatEventDate(endD)}</span>
-                      <span className="text-muted-foreground ml-2">{format(endD, timeDisplayFmt)}</span>
+                      <span className="text-muted-foreground ms-2">{format(endD, timeDisplayFmt)}</span>
                     </div>
                   </div>
                 );
@@ -678,7 +820,7 @@ export function EventModal({
                 <div className="text-sm">
                   <span className="font-medium">{formatEventDate(startD)}</span>
                   {!event.showWithoutTime && (
-                    <span className="text-muted-foreground ml-2">
+                    <span className="text-muted-foreground ms-2">
                       {format(startD, timeDisplayFmt)} – {format(endD, timeDisplayFmt)}
                     </span>
                   )}
@@ -700,7 +842,7 @@ export function EventModal({
                   <Users className="w-4 h-4" />
                   {t("participants.title")}
                 </div>
-                <div className="space-y-1 pl-5">
+                <div className="space-y-1 ps-5">
                   {participants.map(p => (
                     <div key={p.id} className="flex items-center justify-between text-sm">
                       <span className="truncate">{p.name || p.email}</span>
@@ -725,7 +867,7 @@ export function EventModal({
                   ? "bg-success hover:bg-success/80 text-success-foreground"
                   : "text-success border-success/30 hover:bg-success/10"}
               >
-                {userCurrentStatus === "accepted" && <Check className="w-4 h-4 mr-1" />}
+                {userCurrentStatus === "accepted" && <Check className="w-4 h-4 me-1" />}
                 {t("participants.accepted")}
               </Button>
               <Button
@@ -736,7 +878,7 @@ export function EventModal({
                   ? "bg-warning hover:bg-warning/80 text-warning-foreground"
                   : "border border-warning/30 text-warning hover:bg-warning/10"}
               >
-                {userCurrentStatus === "tentative" && <Check className="w-4 h-4 mr-1" />}
+                {userCurrentStatus === "tentative" && <Check className="w-4 h-4 me-1" />}
                 {t("participants.tentative")}
               </Button>
               <Button
@@ -747,7 +889,7 @@ export function EventModal({
                   ? "bg-destructive hover:bg-destructive/80 text-destructive-foreground"
                   : "text-destructive hover:bg-destructive/10"}
               >
-                {userCurrentStatus === "declined" && <Check className="w-4 h-4 mr-1" />}
+                {userCurrentStatus === "declined" && <Check className="w-4 h-4 me-1" />}
                 {t("participants.declined")}
               </Button>
             </div>
@@ -783,7 +925,7 @@ export function EventModal({
               <h2 className="text-lg font-semibold truncate">{event.title || t("events.no_title")}</h2>
             </div>
             {eventCalendar && (
-              <p className="text-xs text-muted-foreground mt-0.5 pl-[18px]">{eventCalendar.name}</p>
+              <p className="text-xs text-muted-foreground mt-0.5 ps-[18px]">{eventCalendar.name}</p>
             )}
           </div>
           <button onClick={onClose} className="p-1.5 rounded-md hover:bg-muted transition-colors duration-150 flex-shrink-0 mt-0.5 text-muted-foreground hover:text-foreground" aria-label={t("form.cancel")}>
@@ -815,13 +957,13 @@ export function EventModal({
                       <>
                         <div className="font-medium text-foreground">
                           {formatEventDate(startD)}
-                          <span className="ml-1.5 font-normal text-muted-foreground">
+                          <span className="ms-1.5 font-normal text-muted-foreground">
                             {format(startD, timeDisplayFmt)}
                           </span>
                         </div>
                         <div className="font-medium text-foreground">
                           {formatEventDate(endD)}
-                          <span className="ml-1.5 font-normal text-muted-foreground">
+                          <span className="ms-1.5 font-normal text-muted-foreground">
                             {format(endD, timeDisplayFmt)}
                           </span>
                         </div>
@@ -837,11 +979,11 @@ export function EventModal({
                         {formatEventDate(startD)}
                       </span>
                       {event.showWithoutTime ? (
-                        <span className="text-muted-foreground ml-1.5">{t("events.all_day")}</span>
+                        <span className="text-muted-foreground ms-1.5">{t("events.all_day")}</span>
                       ) : (
                         <div className="text-muted-foreground">
                           {format(startD, timeDisplayFmt)} – {format(endD, timeDisplayFmt)}
-                          <span className="ml-1.5 text-xs">({formatDurationDisplay(durMin)})</span>
+                          <span className="ms-1.5 text-xs">({formatDurationDisplay(durMin)})</span>
                         </div>
                       )}
                     </>
@@ -854,22 +996,57 @@ export function EventModal({
             {locationName && (
               <div className="flex items-start gap-2.5">
                 <MapPin className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
-                {/^https?:\/\//i.test(locationName) ? (
-                  <a href={locationName} target="_blank" rel="noreferrer" className="text-sm text-primary hover:underline truncate" title={locationName}>
-                    {(() => { try { return new URL(locationName).hostname; } catch { return locationName; } })()}
-                  </a>
-                ) : (
-                  <span className="text-sm text-foreground">{locationName}</span>
-                )}
+                <div className="min-w-0">
+                  {/^https?:\/\//i.test(locationName) ? (
+                    <a href={locationName} target="_blank" rel="noreferrer" className="text-sm text-primary hover:underline truncate block" title={locationName}>
+                      {(() => { try { return new URL(locationName).hostname; } catch { return locationName; } })()}
+                    </a>
+                  ) : (
+                    <>
+                      <span className="text-sm text-foreground">{locationName}</span>
+                      <a
+                        href={`https://maps.google.com/?q=${encodeURIComponent(locationName)}`}
+                        target="_blank"
+                        rel="noreferrer"
+                        className="text-xs text-primary hover:underline mt-0.5 inline-flex items-center gap-1"
+                      >
+                        <ExternalLink className="w-3 h-3" />
+                        View on Map
+                      </a>
+                    </>
+                  )}
+                </div>
               </div>
             )}
 
-            {/* Virtual Location */}
+            {/* Virtual Location / Meeting Link */}
             {virtualLoc && (
               <div className="flex items-start gap-2.5">
                 <Video className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
-                <a href={virtualLoc} target="_blank" rel="noreferrer" className="text-sm text-primary hover:underline truncate" title={virtualLoc}>
-                  {(() => { try { return new URL(virtualLoc).hostname; } catch { return virtualLoc; } })()}
+                <div className="min-w-0">
+                  <a href={virtualLoc} target="_blank" rel="noreferrer" className="text-sm text-primary hover:underline truncate block" title={virtualLoc}>
+                    {(() => {
+                      const isVncMeeting = event.links?.["vnctalk-meeting"];
+                      if (isVncMeeting) return "Join VNCtalk Meeting";
+                      try { return new URL(virtualLoc).hostname; } catch { return virtualLoc; }
+                    })()}
+                  </a>
+                </div>
+              </div>
+            )}
+
+            {/* VNCtalk Meeting "Join" button (when meeting via links) */}
+            {!virtualLoc && event.links?.["vnctalk-meeting"] && (
+              <div className="flex items-start gap-2.5">
+                <Video className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
+                <a
+                  href={event.links["vnctalk-meeting"].href}
+                  target="_blank"
+                  rel="noreferrer"
+                  className="text-sm text-primary hover:underline inline-flex items-center gap-1"
+                >
+                  <ExternalLink className="w-3.5 h-3.5" />
+                  Join VNCtalk Meeting
                 </a>
               </div>
             )}
@@ -886,9 +1063,9 @@ export function EventModal({
                     {viewParticipants.map((p) => (
                       <div key={p.id} className="flex items-center justify-between gap-2 text-xs">
                         <span className="truncate text-foreground">
-                          {p.name || p.email}
+                          <RecipientPopover name={p.name} email={p.email} />
                           {p.isOrganizer && (
-                            <span className="text-muted-foreground ml-1">({t("participants.organizer").toLowerCase()})</span>
+                            <span className="text-muted-foreground ms-1">({t("participants.organizer").toLowerCase()})</span>
                           )}
                         </span>
                         <StatusBadge status={p.status} isOrganizer={p.isOrganizer} t={t} />
@@ -899,6 +1076,34 @@ export function EventModal({
               </div>
             )}
 
+            {/* Resources (booked) */}
+            {resourceStore.bookings.length > 0 && (
+              <div className="flex items-start gap-2.5">
+                <Building2 className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
+                <div className="flex flex-wrap gap-1.5">
+                  {resourceStore.bookings.map((b) => {
+                    const res = resourceStore.resources.find((r) => r.id === b.resourceId);
+                    return (
+                      <span
+                        key={b.id}
+                        className="inline-flex items-center gap-1 rounded-full bg-muted px-2.5 py-1 text-xs font-medium"
+                      >
+                        {res?.name || b.resourceId}
+                      </span>
+                    );
+                  })}
+                </div>
+              </div>
+            )}
+
+            {/* Timezone */}
+            {!event.showWithoutTime && event.timeZone && (
+              <div className="flex items-start gap-2.5">
+                <Globe className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
+                <span className="text-sm text-muted-foreground">{event.timeZone}</span>
+              </div>
+            )}
+
             {/* Recurrence */}
             {recurrenceLabel && (
               <div className="flex items-start gap-2.5">
@@ -919,7 +1124,23 @@ export function EventModal({
             {event.description && (
               <div className="flex items-start gap-2.5">
                 <AlignLeft className="w-4 h-4 text-muted-foreground mt-0.5 flex-shrink-0" />
-                <p className="text-sm text-muted-foreground whitespace-pre-line">{event.description}</p>
+                <p className="text-sm text-muted-foreground whitespace-pre-line">
+                  {linkifyText(event.description).map((part, i) =>
+                    typeof part === "string" ? (
+                      <span key={i}>{part}</span>
+                    ) : (
+                      <a
+                        key={i}
+                        href={part.url}
+                        target="_blank"
+                        rel="noreferrer"
+                        className="text-primary hover:underline"
+                      >
+                        {part.url}
+                      </a>
+                    )
+                  )}
+                </p>
               </div>
             )}
           </div>
@@ -932,7 +1153,7 @@ export function EventModal({
               showDeleteConfirm ? (
                 <div className="flex items-center gap-2">
                   <span className="text-sm text-destructive">{t("form.delete_confirm")}</span>
-                  <Button variant="outline" size="sm" onClick={() => { onDelete(event.id, hasParticipants || undefined); onClose(); }} className="text-destructive border-destructive/30">
+                  <Button variant="outline" size="sm" onClick={() => { resourceStore.cancelEventBookings(event.id); onDelete(event.id, hasParticipants || undefined); onClose(); }} className="text-destructive border-destructive/30">
                     {t("events.delete")}
                   </Button>
                   <Button variant="ghost" size="sm" onClick={() => setShowDeleteConfirm(false)}>
@@ -941,21 +1162,33 @@ export function EventModal({
                 </div>
               ) : (
                 <Button variant="ghost" size="sm" onClick={() => setShowDeleteConfirm(true)} className="text-destructive">
-                  <Trash2 className="w-4 h-4 mr-1" />
+                  <Trash2 className="w-4 h-4 me-1" />
                   {t("events.delete")}
                 </Button>
               )
             )}
             {onDuplicate && !showDeleteConfirm && (
               <Button variant="ghost" size="sm" onClick={handleDuplicate} aria-label={t("events.duplicate")}>
-                <Copy className="w-4 h-4 mr-1" />
+                <Copy className="w-4 h-4 me-1" />
                 {t("events.duplicate")}
               </Button>
             )}
+            {hasParticipants && !showDeleteConfirm && (
+              <>
+                <Button variant="ghost" size="sm" onClick={handleReplySingle} aria-label="Reply to organizer">
+                  <Reply className="w-4 h-4 me-1" />
+                  Reply
+                </Button>
+                <Button variant="ghost" size="sm" onClick={handleReplyAll} aria-label="Reply All">
+                  <ReplyAll className="w-4 h-4 me-1" />
+                  Reply All
+                </Button>
+              </>
+            )}
           </div>
           {!showDeleteConfirm && (
             <Button onClick={() => setMode("edit")}>
-              <Pencil className="w-4 h-4 mr-1" />
+              <Pencil className="w-4 h-4 me-1" />
               {t("events.edit")}
             </Button>
           )}
@@ -1041,6 +1274,21 @@ export function EventModal({
                 setVirtualLocation,
               }}
             />
+            {attendees.length > 0 && !allDay && (
+              <div className="flex items-center gap-2 mt-2">
+                <input
+                  type="checkbox"
+                  id="createVncMeeting"
+                  checked={createVncMeeting}
+                  onChange={(e) => setCreateVncMeeting(e.target.checked)}
+                  className="rounded border-input"
+                  disabled={meetingCreating}
+                />
+                <label htmlFor="createVncMeeting" className="text-sm">
+                  {meetingCreating ? "Creating meeting..." : "Create VNCtalk Meeting"}
+                </label>
+              </div>
+            )}
           </div>
 
           <div>
@@ -1056,6 +1304,44 @@ export function EventModal({
               onAdd={handleAddAttendee}
               onRemove={handleRemoveAttendee}
             />
+            {attendees.length > 0 && !allDay && (
+              <div className="mt-2">
+                <Button
+                  variant="outline"
+                  size="sm"
+                  onClick={() => setShowFreeBusy((prev) => !prev)}
+                  className="text-xs"
+                >
+                  {showFreeBusy ? (
+                    <EyeOff className="w-3.5 h-3.5 me-1" />
+                  ) : (
+                    <Eye className="w-3.5 h-3.5 me-1" />
+                  )}
+                  {showFreeBusy ? t("freeBusy.hide") : t("freeBusy.check")}
+                </Button>
+                {showFreeBusy && (
+                  <div className="mt-3">
+                    <FreeBusyView
+                      participants={attendees}
+                      startDate={(() => {
+                        const d = new Date(`${startDate}T${startTime}:00`);
+                        return isNaN(d.getTime()) ? new Date() : d;
+                      })()}
+                      endDate={(() => {
+                        const d = new Date(`${endDate}T${endTime}:00`);
+                        return isNaN(d.getTime()) ? addHours(new Date(`${startDate}T${startTime}:00`), 8) : d;
+                      })()}
+                      onTimeSelect={(start, end) => {
+                        setStartDate(formatDateInput(start));
+                        setStartTime(formatTimeInput(start));
+                        setEndDate(formatDateInput(end));
+                        setEndTime(formatTimeInput(end));
+                      }}
+                    />
+                  </div>
+                )}
+              </div>
+            )}
             {isEdit && statusCounts && (existingParticipants.length > 0) && (
               <p className="text-xs text-muted-foreground mt-1.5">
                 {t("participants.status_summary", {
@@ -1066,6 +1352,27 @@ export function EventModal({
             )}
           </div>
 
+          <div>
+            <Button
+              variant="outline"
+              size="sm"
+              type="button"
+              onClick={() => setShowResources((prev) => !prev)}
+              className="text-xs"
+            >
+              <Building2 className="w-3.5 h-3.5 me-1" />
+              {showResources ? t("resources.hide") : t("resources.title")}
+            </Button>
+            {showResources && (
+              <div className="mt-3">
+                <ResourcePicker
+                  start={allDay ? `${startDate}T00:00:00` : `${startDate}T${startTime}:00`}
+                  end={allDay ? `${endDate}T23:59:59` : `${endDate}T${endTime}:00`}
+                />
+              </div>
+            )}
+          </div>
+
           <div className="flex items-center gap-2">
             <input
               type="checkbox"
@@ -1120,6 +1427,32 @@ export function EventModal({
             )}
           </div>
 
+          {!allDay && (
+            <div>
+              <label className="text-sm font-medium mb-1 block">
+                <span className="flex items-center gap-1.5">
+                  <Globe className="w-4 h-4" />
+                  Timezone
+                </span>
+              </label>
+              <select
+                value={timezone}
+                onChange={(e) => setTimezone(e.target.value)}
+                className="w-full rounded-md border border-input bg-background px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-ring"
+              >
+                {(() => {
+                  try {
+                    return Intl.supportedValuesOf("timeZone");
+                  } catch {
+                    return [timezone || "UTC"];
+                  }
+                })().map((tz: string) => (
+                  <option key={tz} value={tz}>{tz}</option>
+                ))}
+              </select>
+            </div>
+          )}
+
           {pluginConflictWarnings.length > 0 && (
             <div className="space-y-1.5">
               {pluginConflictWarnings.map(w => (
@@ -1303,7 +1636,7 @@ export function EventModal({
                 <Button
                   variant="outline"
                   size="sm"
-                  onClick={() => { onDelete(event!.id, hasParticipants || undefined); onClose(); }}
+                  onClick={() => { resourceStore.cancelEventBookings(event!.id); onDelete(event!.id, hasParticipants || undefined); onClose(); }}
                   className="text-red-600 dark:text-red-400 border-red-300 dark:border-red-700"
                 >
                   {t("events.delete")}
@@ -1319,7 +1652,7 @@ export function EventModal({
                 onClick={() => setShowDeleteConfirm(true)}
                 className="text-red-600 dark:text-red-400"
               >
-                <Trash2 className="w-4 h-4 mr-1" />
+                <Trash2 className="w-4 h-4 me-1" />
                 {t("events.delete")}
               </Button>
             )
@@ -1331,7 +1664,7 @@ export function EventModal({
               onClick={handleDuplicate}
               aria-label={t("events.duplicate")}
             >
-              <Copy className="w-4 h-4 mr-1" />
+              <Copy className="w-4 h-4 me-1" />
               {t("events.duplicate")}
             </Button>
           )}

components/calendar/free-busy-view.tsx

@@ -0,0 +1,352 @@
+"use client";
+
+import { useState, useEffect, useMemo, useCallback } from "react";
+import { useTranslations } from "next-intl";
+import { addMinutes, differenceInMinutes, format } from "date-fns";
+import { Avatar } from "@/components/ui/avatar";
+import { useAuthStore } from "@/stores/auth-store";
+import { cn } from "@/lib/utils";
+import { fetchFreeBusy, type FreeBusySlot, isWorkingHour as isWorkingHourFn } from "@/lib/calendar-freebusy";
+
+export interface ResourceFreeBusyEntry {
+  id: string;
+  name: string;
+  availabilityMap: Map<number, FreeBusySlot["status"]>;
+}
+
+export interface FreeBusyViewProps {
+  participants: { name?: string; email: string }[];
+  startDate: Date;
+  endDate: Date;
+  onTimeSelect?: (start: Date, end: Date) => void;
+  resources?: ResourceFreeBusyEntry[];
+}
+
+const SLOT_MINUTES = 30;
+const WORK_START_HOUR = 8;
+const WORK_END_HOUR = 18;
+
+const statusColors: Record<FreeBusySlot["status"], string> = {
+  free: "bg-emerald-100 dark:bg-emerald-900/40 border-emerald-200 dark:border-emerald-800",
+  busy: "bg-red-100 dark:bg-red-900/40 border-red-200 dark:border-red-800",
+  tentative: "bg-amber-100 dark:bg-amber-900/40 border-amber-200 dark:border-amber-800",
+  unavailable: "bg-purple-100 dark:bg-purple-900/40 border-purple-200 dark:border-purple-800",
+  unknown: "bg-muted border-muted-foreground/20",
+};
+
+const statusHoverColors: Record<FreeBusySlot["status"], string> = {
+  free: "hover:bg-emerald-200 dark:hover:bg-emerald-800/60",
+  busy: "hover:bg-red-200 dark:hover:bg-red-800/60",
+  tentative: "hover:bg-amber-200 dark:hover:bg-amber-800/60",
+  unavailable: "hover:bg-purple-200 dark:hover:bg-purple-800/60",
+  unknown: "hover:bg-muted-foreground/20",
+};
+
+function clampToSlot(d: Date): Date {
+  const clone = new Date(d);
+  clone.setSeconds(0, 0);
+  const mins = clone.getMinutes();
+  const remainder = mins % SLOT_MINUTES;
+  if (remainder !== 0) {
+    clone.setMinutes(mins - remainder, 0, 0);
+  }
+  return clone;
+}
+
+function buildHourSlots(start: Date, end: Date): { label: string; slots: FreeBusySlot[] }[] {
+  const hours: { label: string; slots: FreeBusySlot[] }[] = [];
+  let cursor = clampToSlot(start);
+  while (cursor < end) {
+    const hourEnd = new Date(cursor);
+    hourEnd.setHours(hourEnd.getHours() + 1, 0, 0, 0);
+    const hourSlots: FreeBusySlot[] = [];
+    let slotCursor = new Date(cursor);
+    while (slotCursor < hourEnd && slotCursor < end) {
+      const slotEnd = addMinutes(slotCursor, SLOT_MINUTES);
+      hourSlots.push({
+        start: new Date(slotCursor),
+        end: slotEnd > end ? new Date(end) : slotEnd,
+        status: "unknown",
+      });
+      slotCursor = slotEnd;
+    }
+    hours.push({ label: format(cursor, "HH:mm"), slots: hourSlots });
+    cursor = hourEnd;
+  }
+  return hours;
+}
+
+function isWorkingHour(hour: number): boolean {
+  return isWorkingHourFn(hour, WORK_START_HOUR, WORK_END_HOUR);
+}
+
+export function FreeBusyView({
+  participants,
+  startDate,
+  endDate,
+  onTimeSelect,
+  resources = [],
+}: FreeBusyViewProps) {
+  const t = useTranslations("calendar");
+  const client = useAuthStore((s) => s.client);
+  const [freeBusyData, setFreeBusyData] = useState<Map<string, FreeBusySlot[]> | null>(null);
+  const [loading, setLoading] = useState(false);
+  const [hoveredSlot, setHoveredSlot] = useState<{
+    participant: string;
+    slotIndex: number;
+  } | null>(null);
+
+  const hourSlots = useMemo(() => buildHourSlots(startDate, endDate), [startDate, endDate]);
+  const totalHalfHourSlots = useMemo(() => {
+    let c = 0;
+    for (const h of hourSlots) c += h.slots.length;
+    return c;
+  }, [hourSlots]);
+
+  const now = new Date();
+  const showNowLine =
+    now >= startDate && now <= endDate;
+  const nowPositionPercent = showNowLine
+    ? Math.max(0, Math.min(100, (differenceInMinutes(now, startDate) / differenceInMinutes(endDate, startDate)) * 100))
+    : null;
+
+  useEffect(() => {
+    if (!client || participants.length === 0) return;
+    let cancelled = false;
+    setLoading(true);
+    fetchFreeBusy(client, participants, startDate, endDate)
+      .then((data) => {
+        if (!cancelled) {
+          setFreeBusyData(data);
+          setLoading(false);
+        }
+      })
+      .catch(() => {
+        if (!cancelled) setLoading(false);
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [client, participants, startDate, endDate]);
+
+  const handleSlotClick = useCallback(
+    (slot: FreeBusySlot) => {
+      if (slot.status === "free" && onTimeSelect) {
+        onTimeSelect(new Date(slot.start), new Date(slot.end));
+      }
+    },
+    [onTimeSelect]
+  );
+
+  const timezone = useMemo(
+    () => Intl.DateTimeFormat().resolvedOptions().timeZone,
+    []
+  );
+
+  if (participants.length === 0) {
+    return (
+      <p className="text-sm text-muted-foreground py-4 text-center">
+        {t("freeBusy.no_participants")}
+      </p>
+    );
+  }
+
+  return (
+    <div className="flex flex-col gap-2">
+      <div className="flex items-center justify-between">
+        <div className="text-xs text-muted-foreground">
+          {t("freeBusy.timezone")}: {timezone}
+        </div>
+        {loading && (
+          <div className="text-xs text-muted-foreground animate-pulse">
+            {t("freeBusy.loading")}
+          </div>
+        )}
+      </div>
+
+      <div className="overflow-auto border border-border rounded-lg">
+        <div className="min-w-max" style={{ minWidth: totalHalfHourSlots * 24 + 200 }}>
+          <table className="w-full border-collapse text-xs">
+            <thead>
+              <tr>
+                <th className="sticky left-0 z-10 bg-background border-b border-r border-border px-3 py-2 text-left w-[180px] min-w-[180px]">
+                  {t("participants.title")}
+                </th>
+                {hourSlots.map((hour, i) => (
+                  <th
+                    key={i}
+                    colSpan={hour.slots.length}
+                    className={cn(
+                      "border-b border-r border-border px-1 py-2 text-center font-medium",
+                      isWorkingHour(new Date(hour.slots[0]?.start).getHours())
+                        ? "bg-muted/50"
+                        : "bg-muted/20"
+                    )}
+                  >
+                    {hour.label}
+                  </th>
+                ))}
+              </tr>
+            </thead>
+            <tbody>
+              {participants.map((p) => {
+                const key = p.email.toLowerCase();
+                const slots = freeBusyData?.get(key);
+                return (
+                  <tr key={key} className="border-b border-border">
+                    <td className="sticky left-0 z-10 bg-background border-r border-border px-3 py-2">
+                      <div className="flex items-center gap-2">
+                        <Avatar
+                          name={p.name}
+                          email={p.email}
+                          size="sm"
+                          className="shrink-0"
+                        />
+                        <div className="min-w-0">
+                          <div className="font-medium truncate">
+                            {p.name || p.email}
+                          </div>
+                          {p.name && (
+                            <div className="text-[10px] text-muted-foreground truncate">
+                              {p.email}
+                            </div>
+                          )}
+                        </div>
+                      </div>
+                    </td>
+                    {hourSlots.map((hour) =>
+                      hour.slots.map((hourSlot, si) => {
+                        const globalSlotIndex =
+                          hourSlots
+                            .slice(0, hourSlots.indexOf(hour))
+                            .reduce((acc, h) => acc + h.slots.length, 0) + si;
+
+                        const slot = slots?.[globalSlotIndex];
+                        const status = slot?.status ?? "unknown";
+                        const isFree = status === "free";
+                        const isHovered =
+                          hoveredSlot?.participant === key &&
+                          hoveredSlot?.slotIndex === globalSlotIndex;
+
+                        return (
+                          <td
+                            key={si}
+                            className={cn(
+                              "border-r border-border py-1 text-center relative cursor-default transition-colors",
+                              statusColors[status],
+                              isFree && statusHoverColors[status],
+                              isFree && "cursor-pointer",
+                              isHovered && "ring-1 ring-inset ring-primary/50",
+                              isWorkingHour(new Date(hourSlot.start).getHours())
+                                ? ""
+                                : "opacity-70"
+                            )}
+                            title={format(hourSlot.start, "HH:mm")}
+                            onClick={() =>
+                              isFree ? handleSlotClick(slot!) : undefined
+                            }
+                            onMouseEnter={() =>
+                              setHoveredSlot({
+                                participant: key,
+                                slotIndex: globalSlotIndex,
+                              })
+                            }
+                            onMouseLeave={() => setHoveredSlot(null)}
+                          >
+                            {status === "free" && (
+                              <span className="block w-full h-full">&nbsp;</span>
+                            )}
+                          </td>
+                        );
+                      })
+                    )}
+                  </tr>
+                );
+              })}
+              {resources.map((res) => (
+                <tr key={`res-${res.id}`} className="border-b border-border">
+                  <td className="sticky left-0 z-10 bg-background border-r border-border px-3 py-2">
+                    <div className="flex items-center gap-2">
+                      <div className="w-6 h-6 rounded bg-blue-100 dark:bg-blue-900/30 flex items-center justify-center shrink-0">
+                        <span className="text-[10px] font-bold text-blue-600 dark:text-blue-400">
+                          R
+                        </span>
+                      </div>
+                      <div className="min-w-0">
+                        <div className="font-medium truncate text-sm">
+                          {res.name}
+                        </div>
+                      </div>
+                    </div>
+                  </td>
+                  {hourSlots.map((hour) =>
+                    hour.slots.map((hourSlot, si) => {
+                      const globalSlotIndex =
+                        hourSlots
+                          .slice(0, hourSlots.indexOf(hour))
+                          .reduce((acc, h) => acc + h.slots.length, 0) + si;
+
+                      const status = res.availabilityMap.get(globalSlotIndex) ?? "unknown";
+                      const isFree = status === "free";
+
+                      return (
+                        <td
+                          key={si}
+                          className={cn(
+                            "border-r border-border py-1 text-center relative cursor-default transition-colors",
+                            statusColors[status],
+                            isFree && "cursor-pointer",
+                            isWorkingHour(new Date(hourSlot.start).getHours())
+                              ? ""
+                              : "opacity-70"
+                          )}
+                          title={`${res.name} - ${format(hourSlot.start, "HH:mm")}`}
+                        >
+                          {status === "free" && (
+                            <span className="block w-full h-full">&nbsp;</span>
+                          )}
+                        </td>
+                      );
+                    })
+                  )}
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      </div>
+
+      {showNowLine && nowPositionPercent !== null && (
+        <div
+          className="absolute pointer-events-none z-20"
+          style={{
+            left: `calc(180px + ${nowPositionPercent}% * (1 - 180px / ${totalHalfHourSlots * 24 + 200}))`,
+          }}
+        />
+      )}
+
+      <div className="flex items-center gap-3 text-xs text-muted-foreground mt-1">
+        <span className="inline-flex items-center gap-1">
+          <span className="w-3 h-3 rounded border border-emerald-200 dark:border-emerald-800 bg-emerald-100 dark:bg-emerald-900/40" />
+          {t("freeBusy.free")}
+        </span>
+        <span className="inline-flex items-center gap-1">
+          <span className="w-3 h-3 rounded border border-red-200 dark:border-red-800 bg-red-100 dark:bg-red-900/40" />
+          {t("freeBusy.busy")}
+        </span>
+        <span className="inline-flex items-center gap-1">
+          <span className="w-3 h-3 rounded border border-amber-200 dark:border-amber-800 bg-amber-100 dark:bg-amber-900/40" />
+          {t("freeBusy.tentative")}
+        </span>
+        <span className="inline-flex items-center gap-1">
+          <span className="w-3 h-3 rounded border border-purple-200 dark:border-purple-800 bg-purple-100 dark:bg-purple-900/40" />
+          {t("freeBusy.unavailable")}
+        </span>
+        <span className="inline-flex items-center gap-1">
+          <span className="w-3 h-3 rounded border border-muted-foreground/20 bg-muted" />
+          {t("freeBusy.unknown")}
+        </span>
+      </div>
+    </div>
+  );
+}

components/calendar/ical-import-modal.tsx

@@ -444,7 +444,7 @@ export function ICalImportModal({ calendars, client, onClose, initialUrl }: ICal
                 onClick={handleImport}
                 disabled={selectedIndices.size === 0}
               >
-                <Check className="w-4 h-4 mr-1" />
+                <Check className="w-4 h-4 me-1" />
                 {t("import_button")} ({selectedIndices.size})
               </Button>
             )}

components/calendar/ical-subscription-modal.tsx

@@ -208,7 +208,7 @@ export function ICalSubscriptionModal({ client, onClose, editSubscription, initi
           <Button onClick={handleSubmit} disabled={!isValid || isSubmitting}>
             {isSubmitting ? (
               <>
-                <Loader2 className="w-4 h-4 animate-spin mr-2" />
+                <Loader2 className="w-4 h-4 animate-spin me-2" />
                 {isEdit ? t("saving") : t("subscribing")}
               </>
             ) : (

components/calendar/mini-calendar-dashlet.tsx

@@ -0,0 +1,196 @@
+"use client";
+
+import { useState, useMemo, useCallback, useEffect } from "react";
+import { useTranslations } from "next-intl";
+import { useRouter } from "@/i18n/navigation";
+import { ChevronLeft, ChevronRight } from "lucide-react";
+import {
+  startOfMonth,
+  endOfMonth,
+  startOfWeek,
+  endOfWeek,
+  eachDayOfInterval,
+  format,
+  isToday,
+  isSameDay,
+  addMonths,
+  subMonths,
+  isSameMonth,
+} from "date-fns";
+import { cn } from "@/lib/utils";
+import { useSettingsStore } from "@/stores/settings-store";
+import { useCalendarStore } from "@/stores/calendar-store";
+import { useAuthStore } from "@/stores/auth-store";
+import { getEventDayBounds } from "@/lib/calendar-utils";
+
+interface MiniCalendarDashletProps {
+  events?: { date: string; color?: string }[];
+  onDayClick?: (date: Date) => void;
+  selectedDate?: Date;
+}
+
+const ALL_DAY_KEYS = ["sun", "mon", "tue", "wed", "thu", "fri", "sat"] as const;
+
+export function MiniCalendarDashlet({
+  events: propEvents,
+  onDayClick,
+  selectedDate: propSelectedDate,
+}: MiniCalendarDashletProps) {
+  const t = useTranslations("calendar");
+  const router = useRouter();
+  const firstDayOfWeek = useSettingsStore((s) => s.firstDayOfWeek);
+  const storeSelectedDate = useCalendarStore((s) => s.selectedDate);
+  const storeEvents = useCalendarStore((s) => s.events);
+  const selectedDate = propSelectedDate ?? storeSelectedDate;
+  const client = useAuthStore((s) => s.client);
+
+  const [displayMonth, setDisplayMonth] = useState(() => new Date());
+
+  const weekStartsOn = useMemo(() => {
+    if (firstDayOfWeek === 0) return 0 as const;
+    if (firstDayOfWeek === 6) return 6 as const;
+    return 1 as const;
+  }, [firstDayOfWeek]);
+
+  useEffect(() => {
+    if (!client) return;
+    const start = format(startOfMonth(displayMonth), "yyyy-MM-dd'T'00:00:00");
+    const end = format(endOfMonth(displayMonth), "yyyy-MM-dd'T'23:59:59");
+    const { dateRange } = useCalendarStore.getState();
+    if (dateRange?.start === start && dateRange?.end === end) return;
+    useCalendarStore.getState().fetchEvents(client, start, end);
+  }, [displayMonth, client]);
+
+  const days = useMemo(() => {
+    const monthStart = startOfMonth(displayMonth);
+    const monthEnd = endOfMonth(displayMonth);
+    const calStart = startOfWeek(monthStart, { weekStartsOn });
+    const calEnd = endOfWeek(monthEnd, { weekStartsOn });
+    return eachDayOfInterval({ start: calStart, end: calEnd });
+  }, [displayMonth, weekStartsOn]);
+
+  const eventDates = useMemo(() => {
+    const set = new Set<string>();
+    for (const e of storeEvents) {
+      try {
+        const { startDay, endDay } = getEventDayBounds(e);
+        const cursor = new Date(startDay);
+        while (cursor <= endDay) {
+          set.add(format(cursor, "yyyy-MM-dd"));
+          cursor.setDate(cursor.getDate() + 1);
+        }
+      } catch {
+        /* skip */
+      }
+    }
+    if (propEvents) {
+      for (const e of propEvents) {
+        set.add(e.date);
+      }
+    }
+    return set;
+  }, [storeEvents, propEvents]);
+
+  const dayHeaders = useMemo(
+    () => [...ALL_DAY_KEYS.slice(weekStartsOn), ...ALL_DAY_KEYS.slice(0, weekStartsOn)],
+    [weekStartsOn],
+  );
+
+  const handlePrevMonth = useCallback(() => {
+    setDisplayMonth((prev) => subMonths(prev, 1));
+  }, []);
+
+  const handleNextMonth = useCallback(() => {
+    setDisplayMonth((prev) => addMonths(prev, 1));
+  }, []);
+
+  const handleGoToToday = useCallback(() => {
+    setDisplayMonth(new Date());
+  }, []);
+
+  const handleDayClick = useCallback(
+    (day: Date) => {
+      useCalendarStore.getState().setSelectedDate(day);
+      if (onDayClick) {
+        onDayClick(day);
+      } else {
+        router.push("/calendar");
+      }
+    },
+    [onDayClick, router],
+  );
+
+  return (
+    <div className="select-none px-2 py-1.5">
+      <div className="flex items-center justify-between mb-1">
+        <button
+          onClick={handlePrevMonth}
+          className="p-0.5 rounded hover:bg-muted transition-colors"
+          aria-label={t("nav_prev")}
+        >
+          <ChevronLeft className="w-3.5 h-3.5 text-muted-foreground" />
+        </button>
+        <button
+          onClick={handleGoToToday}
+          className="text-xs font-medium hover:bg-muted px-1.5 py-0.5 rounded transition-colors"
+          title={t("views.today")}
+        >
+          {format(displayMonth, "MMM yyyy")}
+        </button>
+        <button
+          onClick={handleNextMonth}
+          className="p-0.5 rounded hover:bg-muted transition-colors"
+          aria-label={t("nav_next")}
+        >
+          <ChevronRight className="w-3.5 h-3.5 text-muted-foreground" />
+        </button>
+      </div>
+
+      <div className="grid grid-cols-7 mb-0.5">
+        {dayHeaders.map((dh) => (
+          <div
+            key={dh}
+            className="text-center text-[9px] font-medium text-muted-foreground py-0.5"
+          >
+            {t(`days.${dh}`)}
+          </div>
+        ))}
+      </div>
+
+      <div className="grid grid-cols-7 gap-0">
+        {days.map((day) => {
+          const inMonth = isSameMonth(day, displayMonth);
+          const selected = isSameDay(day, selectedDate);
+          const today = isToday(day);
+          const dateStr = format(day, "yyyy-MM-dd");
+          const hasEvent = eventDates.has(dateStr);
+          const dotColor =
+            propEvents?.find((e) => e.date === dateStr && e.color)?.color ??
+            undefined;
+
+          return (
+            <button
+              key={day.toISOString()}
+              onClick={() => handleDayClick(day)}
+              className={cn(
+                "relative flex items-center justify-center w-6 h-6 text-[11px] rounded-full transition-colors mx-auto",
+                !inMonth && "text-muted-foreground/30",
+                inMonth && !selected && "hover:bg-muted",
+                today && !selected && "font-bold text-primary",
+                selected && "bg-primary text-primary-foreground",
+              )}
+            >
+              {day.getDate()}
+              {hasEvent && !selected && (
+                <span
+                  className="absolute bottom-0 left-1/2 -translate-x-1/2 w-1 h-1 rounded-full bg-primary"
+                  style={dotColor ? { backgroundColor: dotColor } : undefined}
+                />
+              )}
+            </button>
+          );
+        })}
+      </div>
+    </div>
+  );
+}

components/calendar/mini-calendar.tsx

@@ -1,25 +1,19 @@
 "use client";
 
 import { useState, useMemo, Fragment } from "react";
-import { useTranslations, useFormatter } from "next-intl";
+import { useTranslations } from "next-intl";
 import { ChevronLeft, ChevronRight, ChevronDown } from "lucide-react";
 import {
-  startOfMonth, endOfMonth, startOfWeek, endOfWeek,
   addMonths, subMonths, addYears, subYears, setMonth, setYear,
-  eachDayOfInterval, getMonth, getYear, getISOWeek, getWeek,
-  isSameDay, isSameMonth, isToday, format,
+  getISOWeek, getWeek, format,
 } from "date-fns";
 import { cn } from "@/lib/utils";
 import { getEventDayBounds } from "@/lib/calendar-utils";
 import type { CalendarEvent } from "@/lib/jmap/types";
+import { useCalendarLocale } from "@/hooks/use-calendar-locale";
 
 type PickerView = "days" | "months" | "years";
 
-const MONTH_LABELS = [
-  "Jan", "Feb", "Mar", "Apr", "May", "Jun",
-  "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
-];
-
 interface MiniCalendarProps {
   selectedDate: Date;
   displayMonth: Date;
@@ -40,17 +34,25 @@ export function MiniCalendar({
   showWeekNumbers = false,
 }: MiniCalendarProps) {
   const t = useTranslations("calendar");
-  const intlFormatter = useFormatter();
-  const weekStart = (firstDayOfWeek === 0 ? 0 : 1) as 0 | 1;
+  const {
+    weekStartsOn,
+    dayHeaderKeys,
+    getMonthGridDays,
+    checkIsToday,
+    checkIsSameMonth,
+    checkIsSameDay,
+    formatDayNumber,
+    formatMonthYear,
+    getMonth,
+    getYear,
+    monthLabelKeys,
+  } = useCalendarLocale();
   const [pickerView, setPickerView] = useState<PickerView>("days");
 
-  const days = useMemo(() => {
-    const monthStart = startOfMonth(displayMonth);
-    const monthEnd = endOfMonth(displayMonth);
-    const gridStart = startOfWeek(monthStart, { weekStartsOn: weekStart });
-    const gridEnd = endOfWeek(monthEnd, { weekStartsOn: weekStart });
-    return eachDayOfInterval({ start: gridStart, end: gridEnd });
-  }, [displayMonth, weekStart]);
+  const days = useMemo(
+    () => getMonthGridDays(displayMonth),
+    [displayMonth, getMonthGridDays],
+  );
 
   const eventDates = useMemo(() => {
     const set = new Set<string>();
@@ -67,20 +69,16 @@ export function MiniCalendar({
     return set;
   }, [events]);
 
-  const dayHeaders = firstDayOfWeek === 0
-    ? ["sun", "mon", "tue", "wed", "thu", "fri", "sat"] as const
-    : ["mon", "tue", "wed", "thu", "fri", "sat", "sun"] as const;
-
   // Compute week numbers for each row (one per 7-day chunk)
   const weekNumbers = useMemo(() => {
     if (!showWeekNumbers) return [];
     const nums: number[] = [];
     for (let i = 0; i < days.length; i += 7) {
       // Use the first day of each row to determine the week number
-      nums.push(weekStart === 1 ? getISOWeek(days[i]) : getWeek(days[i], { weekStartsOn: 0 }));
+      nums.push(weekStartsOn === 1 ? getISOWeek(days[i]) : getWeek(days[i], { weekStartsOn: 0 }));
     }
     return nums;
-  }, [days, showWeekNumbers, weekStart]);
+  }, [days, showWeekNumbers, weekStartsOn]);
 
   const currentYear = getYear(displayMonth);
   const currentMonth = getMonth(displayMonth);
@@ -116,7 +114,7 @@ export function MiniCalendar({
 
   const headerLabel =
     pickerView === "days"
-      ? intlFormatter.dateTime(displayMonth, { month: "long", year: "numeric" })
+      ? formatMonthYear(displayMonth)
       : pickerView === "months"
         ? String(currentYear)
         : `${decadeStart}\u2013${decadeStart + 9}`;
@@ -160,15 +158,15 @@ export function MiniCalendar({
           {showWeekNumbers && (
             <div className="text-center text-[10px] font-medium text-muted-foreground py-1 w-5" />
           )}
-          {dayHeaders.map((d) => (
+          {dayHeaderKeys.map((d) => (
             <div key={d} className="text-center text-[10px] font-medium text-muted-foreground py-1">
               {t(`days.${d}`)}
             </div>
           ))}
           {days.map((day, index) => {
-            const inMonth = isSameMonth(day, displayMonth);
-            const selected = isSameDay(day, selectedDate);
-            const today = isToday(day);
+            const inMonth = checkIsSameMonth(day, displayMonth);
+            const selected = checkIsSameDay(day, selectedDate);
+            const today = checkIsToday(day);
             const hasEvent = eventDates.has(format(day, "yyyy-MM-dd"));
             const isFirstDayOfRow = index % 7 === 0;
 
@@ -193,7 +191,7 @@ export function MiniCalendar({
                     selected && "bg-primary text-primary-foreground"
                   )}
                 >
-                  {format(day, "d")}
+                  {formatDayNumber(day)}
                   {hasEvent && !selected && (
                     <span className="absolute bottom-0.5 left-1/2 -translate-x-1/2 w-1 h-1 rounded-full bg-primary" />
                   )}
@@ -206,7 +204,7 @@ export function MiniCalendar({
 
       {pickerView === "months" && (
         <div className="grid grid-cols-3 gap-1 py-1">
-          {MONTH_LABELS.map((label, i) => {
+          {monthLabelKeys.map((labelKey, i) => {
             const isCurrentMonth = i === currentMonth && currentYear === getYear(new Date());
             const isSelected = i === getMonth(selectedDate) && currentYear === getYear(selectedDate);
             return (
@@ -220,7 +218,7 @@ export function MiniCalendar({
                   !isSelected && !isCurrentMonth && "hover:bg-muted"
                 )}
               >
-                {label}
+                {t(`months.${labelKey}`)}
               </button>
             );
           })}

components/calendar/resource-picker.tsx

@@ -0,0 +1,243 @@
+"use client";
+
+import { useState, useEffect, useMemo } from "react";
+import { useTranslations } from "next-intl";
+import { cn } from "@/lib/utils";
+import { Input } from "@/components/ui/input";
+import { useResourceStore } from "@/stores/resource-store";
+import type { Resource } from "@/lib/resources/client";
+import {
+  Building2,
+  Car,
+  Wrench,
+  Box,
+  MapPin,
+  Users,
+  Search,
+  X,
+  Check,
+} from "lucide-react";
+
+interface ResourcePickerProps {
+  start?: string;
+  end?: string;
+  compact?: boolean;
+}
+
+const typeIcons: Record<Resource["type"], typeof Building2> = {
+  room: Building2,
+  vehicle: Car,
+  equipment: Wrench,
+  other: Box,
+};
+
+type TypeFilter = "all" | Resource["type"];
+
+export function ResourcePicker({ start, end, compact = false }: ResourcePickerProps) {
+  const t = useTranslations("calendar");
+  const {
+    resources,
+    selectedResources,
+    isLoading,
+    fetchResources,
+    searchResources,
+    toggleResource,
+    deselectResource,
+    clearSelection,
+  } = useResourceStore();
+
+  const [typeFilter, setTypeFilter] = useState<TypeFilter>("all");
+  const [query, setQuery] = useState("");
+  const [availabilityMap, setAvailabilityMap] = useState<Record<string, "available" | "conflict" | "unknown">>({});
+
+  useEffect(() => {
+    fetchResources();
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
+  const filtered = useMemo(() => {
+    let list = typeFilter === "all" ? resources : resources.filter((r) => r.type === typeFilter);
+    if (query.trim()) {
+      list = searchResources(query).filter((r) => typeFilter === "all" || r.type === typeFilter);
+    }
+    return list;
+  }, [resources, typeFilter, query, searchResources]);
+
+  useEffect(() => {
+    if (!start || !end) return;
+    let cancelled = false;
+
+    const checkAll = async () => {
+      const map: Record<string, "available" | "conflict" | "unknown"> = {};
+      for (const resource of filtered) {
+        try {
+          const params = new URLSearchParams({ start, end });
+          const { apiFetch } = await import("@/lib/browser-navigation");
+          const res = await apiFetch(
+            `/api/resources/${resource.id}/availability?${params.toString()}`
+          );
+          if (res.ok) {
+            const data = await res.json();
+            map[resource.id] = data.available ? "available" : "conflict";
+          } else {
+            map[resource.id] = "unknown";
+          }
+        } catch {
+          map[resource.id] = "unknown";
+        }
+      }
+      if (!cancelled) setAvailabilityMap(map);
+    };
+
+    checkAll();
+    return () => {
+      cancelled = true;
+    };
+  }, [filtered, start, end]);
+
+  const filters: { key: TypeFilter; label: string }[] = [
+    { key: "all", label: t("resources.filter_all") },
+    { key: "room", label: t("resources.type_room") },
+    { key: "vehicle", label: t("resources.type_vehicle") },
+    { key: "equipment", label: t("resources.type_equipment") },
+    { key: "other", label: t("resources.type_other") },
+  ];
+
+  return (
+    <div className="space-y-3">
+      <div className="flex items-center gap-2 mb-3 flex-wrap">
+        {filters.map((f) => (
+          <button
+            key={f.key}
+            type="button"
+            onClick={() => setTypeFilter(f.key)}
+            className={cn(
+              "rounded-full px-3 py-1 text-xs font-medium transition-colors",
+              typeFilter === f.key
+                ? "bg-primary text-primary-foreground"
+                : "bg-muted text-muted-foreground hover:bg-muted/80"
+            )}
+          >
+            {f.label}
+          </button>
+        ))}
+      </div>
+
+      <div className="relative">
+        <Search className="absolute left-2.5 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" />
+        <Input
+          value={query}
+          onChange={(e) => setQuery(e.target.value)}
+          placeholder={t("resources.search_placeholder")}
+          className="pl-8"
+        />
+      </div>
+
+      {isLoading ? (
+        <div className="flex items-center justify-center py-8">
+          <div className="animate-spin w-5 h-5 border-2 border-primary border-t-transparent rounded-full" />
+        </div>
+      ) : filtered.length === 0 ? (
+        <p className="text-sm text-muted-foreground py-4 text-center">
+          {t("resources.no_resources")}
+        </p>
+      ) : (
+        <div className={cn(
+          "border border-border rounded-lg divide-y divide-border",
+          !compact && "max-h-64 overflow-y-auto"
+        )}>
+          {filtered.map((resource) => {
+            const TypeIcon = typeIcons[resource.type];
+            const isSelected = selectedResources.some((r) => r.id === resource.id);
+            const avail = availabilityMap[resource.id] || "unknown";
+
+            return (
+              <button
+                key={resource.id}
+                type="button"
+                onClick={() => toggleResource(resource)}
+                className={cn(
+                  "w-full flex items-center gap-3 px-3 py-2.5 text-left transition-colors",
+                  isSelected
+                    ? "bg-primary/10 hover:bg-primary/15"
+                    : "hover:bg-muted/50"
+                )}
+              >
+                <span className="relative flex-shrink-0">
+                  <TypeIcon className="w-5 h-5 text-muted-foreground" />
+                  {start && end && (
+                    <span
+                      className={cn(
+                        "absolute -bottom-0.5 -right-0.5 w-2.5 h-2.5 rounded-full border-2 border-background",
+                        avail === "available" && "bg-emerald-500",
+                        avail === "conflict" && "bg-red-500",
+                        avail === "unknown" && "bg-muted-foreground/40"
+                      )}
+                    />
+                  )}
+                </span>
+                <div className="min-w-0 flex-1">
+                  <div className="text-sm font-medium truncate">{resource.name}</div>
+                  <div className="flex items-center gap-2 text-xs text-muted-foreground">
+                    {resource.location && (
+                      <span className="inline-flex items-center gap-0.5">
+                        <MapPin className="w-3 h-3" />
+                        {resource.location}
+                      </span>
+                    )}
+                    {resource.capacity != null && resource.capacity > 0 && (
+                      <span className="inline-flex items-center gap-0.5">
+                        <Users className="w-3 h-3" />
+                        {resource.capacity}
+                      </span>
+                    )}
+                  </div>
+                </div>
+                <span
+                  className={cn(
+                    "w-5 h-5 rounded border-2 flex items-center justify-center flex-shrink-0 transition-colors",
+                    isSelected
+                      ? "bg-primary border-primary text-primary-foreground"
+                      : "border-muted-foreground/40"
+                  )}
+                >
+                  {isSelected && <Check className="w-3.5 h-3.5" />}
+                </span>
+              </button>
+            );
+          })}
+        </div>
+      )}
+
+      {selectedResources.length > 0 && (
+        <div className="flex flex-wrap gap-1.5 pt-1">
+          {selectedResources.map((resource) => (
+            <span
+              key={resource.id}
+              className="inline-flex items-center gap-1 rounded-full bg-primary/10 text-primary px-2.5 py-1 text-xs font-medium"
+            >
+              {resource.name}
+              <button
+                type="button"
+                onClick={() => deselectResource(resource.id)}
+                className="ml-0.5 rounded-full p-0.5 hover:bg-primary/20 transition-colors"
+                aria-label={t("resources.remove", { name: resource.name })}
+              >
+                <X className="w-3 h-3" />
+              </button>
+            </span>
+          ))}
+          {selectedResources.length > 0 && (
+            <button
+              type="button"
+              onClick={clearSelection}
+              className="text-xs text-muted-foreground hover:text-foreground ml-1"
+            >
+              {t("resources.clear_all")}
+            </button>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}

components/calendar/task-modal.tsx

@@ -302,7 +302,7 @@ export function TaskModal({
               className="text-destructive hover:text-destructive"
               onClick={() => onDelete(task.id)}
             >
-              <Trash2 className="h-4 w-4 mr-1" />
+              <Trash2 className="h-4 w-4 me-1" />
               {t("tasks.delete")}
             </Button>
           )}