The merge implements optimistic room send with failure recovery in the ChatView and useChatRooms hook, including a reconciliation flow that handles send failures gracefully and documents the UX behavior. The dashboard guide and architecture docs are updated to reflect the new room messaging pattern.
Fusion-Task-Id: FN-4040
Heartbeat timer repair sweep — adds a registration repair mechanism that detects and flags stale timers via agent updates, with tests covering the new sweep behavior. Documentation updated in agents.md to reflect the repair flow.
Fusion-Task-Id: FN-3959
Fusion-Task-Lineage: 40708b6b-01e1-4673-93e1-299678de2879
Fixes a room reply visibility gap in the chat rooms hook by correcting the message-resync condition and adding test coverage to reproduce the issue, with updated documentation for the resync contract.
Fusion-Task-Id: FN-3981
- Add useChatRooms hook with room lifecycle state and API integration
- Wire ChatView UI for room selection/creation and update room-focused tests
- Tokenize ChatView and TaskCard color usage to align with dashboard design tokens
- Update architecture docs and include FN-3879 changesets for published CLI package
Fusion-Task-Id: FN-3879
