Replace all mock data in the dev JMAP server with European-themed
content: 42 emails (was 13), 20 contacts across 2 address books
(was 3), 5 calendars and 35 events with recurrence, overlaps,
and all-day entries.
Move keyword tags in email/thread list items from the subject line
to the header row alongside the date for a cleaner layout.
Update test assertions to match the new mock data.
Resizable Columns
- Add ResizeHandle component with mouse drag, keyboard (Arrow keys),
and double-click to reset to default width
- Add sidebarWidth/emailListWidth to ui-store with clamping + persistence
- Wire resize handles between sidebar/email-list panels on desktop
Navigation Rail Overhaul
- Move StorageQuotaCircle, push-status, sign-out from Sidebar to NavigationRail
- Interactive SVG ring with popover breakdown (used/free/total)
- Sidebar collapse state lifted to ui-store
- Show total email count per mailbox alongside unread badge
Email Multi-Selection & Drag-and-Drop
- Ctrl+Click (toggle) and Shift+Click (range) on all list items
- Add selectRangeEmails and lastSelectedEmailId to email-store
- Enable drag-and-drop on thread items and thread headers
- useEmailDrag accepts optional threadEmails for full-thread drag
Email Viewer Layout
- Remove card wrapper for cleaner full-width reading
- Always render HTML body when available
- Adjust skeleton loader to match flat layout
Modal & UI Polish
- Standardise backdrops, close buttons, padding, border-radius, transitions
- Migrate template-string classNames to cn() in settings
- Unify focus-ring token to ring-ring on form controls
i18n
- Add storage_used/free/total keys to all 8 locales
Dev Mock JMAP Server (new, gated by DEV_MOCK_JMAP=true)
- Session, Mailbox/Email/Thread/Identity CRUD, back-references, upload
- GET /download with Content-Disposition, GET /eventsource SSE
Tests (46 new)
- ui-store (13), email-selection (10), resize-handle (9), mock-server (14)
Add opt-in SSO authentication alongside Basic Auth. OAuth endpoints are
auto-discovered via .well-known, with support for external IdPs
(Keycloak, Authentik) via configurable OAUTH_ISSUER_URL. Sessions
persist through httpOnly refresh token cookies with automatic renewal.
Completes full internationalization coverage for the webmail application with enhanced language support:
- Replace all remaining hardcoded English strings with translation keys
- Add timezone auto-detection to prevent hydration mismatches
- Enable instant client-side language switching without page reload
- Add 60+ new translation keys in English and French locales
- Improve language switcher component with proper state management
- Add health check endpoint for container orchestration
All user-facing text now supports English and French with no hardcoded fallbacks, providing a fully localized experience.