test(integration): add IT_VIDEO option to record test videos

Make Playwright's video capture configurable via IT_VIDEO (on | off |
retain-on-failure [default] | on-first-retry) so a whole run — passing tests
included — can be recorded, e.g. for a demo or to inspect a flow. Forward the
env through the Playwright container in run-tests.sh and document it in the
README's environment-knobs table.

integration/README.md

@@ -145,6 +145,13 @@ because the UI behaviour is currently incomplete. Worth a look:
 | `IT_WEBMAIL_URL`| `http://localhost:3000` | Webmail origin                                        |
 | `IT_JMAP_URL`   | `http://localhost:8025` | Stalwart JMAP/admin base URL                          |
 | `IT_SMTP_PORT`  | `1025`             | Stalwart submission port                                   |
+| `IT_VIDEO`      | `retain-on-failure`| Video capture: `on` records a `.webm` for **every** test; also `off` / `on-first-retry`. Videos land at `integration/test-results/<test>/video.webm` |
+
+Record videos for a whole run (passing tests included):
+
+```bash
+IT_VIDEO=on integration/run-tests.sh          # or a single spec: IT_VIDEO=on integration/run-tests.sh 01-login
+```
 
 By default the stack is **left running** after the suite so re-runs are fast and
 you can poke around (webmail on :3000, Stalwart admin on :8025). Tear it down

integration/run-tests.sh

@@ -12,6 +12,11 @@
 # Usage:
 #   integration/run-tests.sh                 # whole suite
 #   integration/run-tests.sh 01-login        # a single spec (grep on file name)
+#
+# Env:
+#   IT_VIDEO=on   record a video.webm for every test (not just failures);
+#                 also: off | retain-on-failure (default) | on-first-retry.
+#                 e.g. IT_VIDEO=on integration/run-tests.sh 01-login
 set -euo pipefail
 
 REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
@@ -32,5 +37,6 @@ docker run --rm --network host \
   -v "${REPO_ROOT}":/work -w /work \
   -e IT_NO_DOCKER=1 \
   -e HOME=/tmp \
+  -e IT_VIDEO="${IT_VIDEO:-}" \
   "${PW_IMAGE}" \
   npx playwright test -c playwright.integration.config.ts ${FILTER:+"$FILTER"}

playwright.integration.config.ts

@@ -9,6 +9,19 @@ import { defineConfig } from '@playwright/test';
  */
 const WEBMAIL_URL = process.env.IT_WEBMAIL_URL ?? 'http://localhost:3000';
 
+/**
+ * Video capture mode, overridable via IT_VIDEO. Default `retain-on-failure`
+ * keeps a .webm only for tests that fail. Set `IT_VIDEO=on` to record every
+ * test (e.g. for a demo or to inspect a passing flow), `off` to disable, or
+ * `on-first-retry` to record only when a test is retried. Videos land next to
+ * the other artefacts under `integration/test-results/<test>/video.webm`.
+ */
+type VideoMode = 'off' | 'on' | 'retain-on-failure' | 'on-first-retry';
+const VIDEO_MODES: VideoMode[] = ['off', 'on', 'retain-on-failure', 'on-first-retry'];
+const VIDEO: VideoMode = VIDEO_MODES.includes(process.env.IT_VIDEO as VideoMode)
+  ? (process.env.IT_VIDEO as VideoMode)
+  : 'retain-on-failure';
+
 export default defineConfig({
   testDir: './integration/tests',
   // next dev compiles routes lazily and each test logs in fresh, so give
@@ -26,7 +39,7 @@ export default defineConfig({
     baseURL: WEBMAIL_URL,
     screenshot: 'only-on-failure',
     trace: 'retain-on-failure',
-    video: 'retain-on-failure',
+    video: VIDEO,
   },
   projects: [{ name: 'chromium', use: { browserName: 'chromium' } }],
 });