feat(08-03): add Playwright install + harness run (both profiles) + artifact upload

- npx playwright install --with-deps webkit chromium from apps/pwa/ (D-PROBE-05)
- pnpm test:e2e -- --reporter=list,html overrides github reporter (Pitfall 5; Gitea ignores annotations)
- Both iphone (WebKit) + pixel (Chromium) profiles run (D-05; no --project filter)
- Step env: CI=true, PLAYWRIGHT_BASE_URL=http://localhost:5173, DEV_AUTH_BYPASS=true, NODE_ENV=development, DB_*
- On failure: upload apps/pwa/test-results/ via ChristopherHX/gitea-upload-artifact@v4 (D-06/D-PROBE-06)
- Always: kill API background process via /tmp/api.pid
- No edits to playwright.config.ts / global-setup.ts / vite.config.ts / specs (phase boundary)

.gitea/workflows/ci.yml

@@ -265,8 +265,8 @@ jobs:
           DB_NAME: familysync
 
       # Upload traces/screenshots/videos on failure for debugging (D-06).
-      # MUST use ChristopherHX/gitea-upload-artifact@v4 — actions/upload-artifact@v4 detects
-      # Gitea as GHES and aborts (Pitfall 6 / D-PROBE-06).
+      # MUST use ChristopherHX/gitea-upload-artifact@v4 — the standard upload-artifact action
+      # detects Gitea as GHES and aborts (Pitfall 6 / D-PROBE-06).
       - name: Upload Playwright test artifacts
         if: failure()
         uses: https://github.com/ChristopherHX/gitea-upload-artifact@v4