Phase 3.2 WS1: Chat request overlay, queue, stale reasons
- Backend: add reason field to chat_request_closed WS messages
(cancelled_by_customer, accepted_by_other, expired)
- Backend: include duration_minutes, is_free_trial in chat_request WS
- ChatRequestNotifier: add ChatRequestStaleData, StaleReason enum,
request queue (List<Map>), ignore(), acknowledgeStale(), _advanceQueue()
- New ChatRequestOverlay widget: slides up from bottom, dimmed background,
swipe to dismiss, shows active/stale request content
- Integrate overlay in main.dart wrapping MaterialApp.router
- Cleanup: convert HomeScreen to ConsumerWidget, remove showModalBottomSheet,
remove IncomingRequestSheet, remove lifecycle observer
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
ramadhan sjamsani
b9c4841eb1