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feat(FN-3981): document room message resync contract and reproduce reply vi

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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
This commit is contained in:
Fusion
2026-05-11 00:41:56 -07:00
committed by gsxdsm
parent 00c46a056b
commit 544383ab3f
4 changed files with 25 additions and 11 deletions
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docs/architecture.md
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@@ -282,7 +282,7 @@ Intentional exclusions from shared snapshots:
- The hook subscribes to `/api/events` and consumes `chat:room:created`, `chat:room:updated`, `chat:room:deleted`, `chat:room:member:added`, `chat:room:member:removed`, `chat:room:message:added`, `chat:room:message:updated`, and `chat:room:message:deleted` to keep UI state in sync.
- Room messages persist through `POST /api/chat/rooms/:id/messages`; the route persists the user message first, then calls `ChatManager.sendRoomMessage(...)` to orchestrate room-member responders and persist assistant room replies with `chatStore.addRoomMessage(...)`.
- `sendRoomMessage(...)` uses existing room-member + mention resolution rules: mentioned members are direct responders, non-mentioned members are ambient responders (capped by `ROOM_AMBIENT_MAX_RESPONDERS`), and non-member mentions are handled explicitly by the manager instead of silently disappearing.
- UI does not optimistically insert room messages; it renders persisted user + assistant room messages from `chat:room:message:*` SSE events.
- UI does not optimistically insert room messages; `useChatRooms.sendRoomMessage()` re-fetches authoritative room messages immediately after `POST /api/chat/rooms/:id/messages` so persisted assistant replies remain visible across SSE timing gaps, then continues applying `chat:room:message:*` events for live updates.
- Mention UI in rooms keeps direct-chat behavior unchanged while adding room affordances:
- `AgentMentionPopup` receives room membership context and shows members first with a `status-dot` member indicator (`aria-label="Room member"`).
- With an empty mention filter in room mode, only room members are listed; a hint row prompts the user to type to search non-members.