- Add gitignore and prettier configuration files for project scaffolding
- Implement room access control service with project member verification
- Create user access key management with CRUD operations and activity logging
- Add accordion UI component for frontend expandable sections
- Implement room AI configuration with list, upsert, and delete operations
- Add AI event types for agent join/leave/status change tracking
- Create streaming AI processing services for mode and react patterns
- Build room AI service with model detection and idempotency handling
- Integrate chat service orchestration for AI message processing
- Add typing indicators and stream cancellation for AI interactions
- Implement mention parsing and context extraction for AI agents
TypingStart/TypingStop actions are intercepted in ws_universal.rs so
this match arm is never reached, but we need a safe fallback instead
of std::hint::unreachable_unchecked().
- Add `check_room_access` before `manager.subscribe()` in ws_universal
to prevent unauthorized room subscription (security fix)
- Fix busy-wait in `poll_push_streams`: sleep 50ms when streams are
empty, yield only when there are active streams
- Re-subscribe dead rooms after stream errors so events are not
permanently lost until manual reconnect
- Fix streaming message placeholder using fake content as room_id:
use chunk.room_id from backend instead
- Show toast error on history load failures instead of silent fallback
