- Navbar: add WebSocket connection dot (green/yellow/red/gray) from GlobalWebSocketContext
- Profile page: /profile route shows email, full_name, role, auth_provider, languages
- JobResponse: expose failure and error fields (were stored in MongoDB but not returned)
so frontend now shows actual render error message instead of generic fallback
- render_accessible_video: write JOB_TASK_FAILED audit log entry on render failure
with language, error detail, step=render
- rerender_accessible_video: same audit log on re-render failure, step=rerender
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>