FCE-2767 fetch older events on room join

[czerwiukk]

No description provided.

[linear]

FCE-2767 Preserve game state between room joins

[Copilot]

Pull request overview

This PR implements fetching historical events when joining a room, ensuring users can see past events before subscribing to new ones. The implementation addresses synchronization between past event retrieval and real-time subscription to prevent race conditions.

Changes:

• Added backend endpoint getEvents to retrieve historical events and the last event ID for a given room
• Updated frontend hook to fetch past events before subscribing, using the lastEventId to ensure continuity
• Removed unused ElevenLabs integration files (session, audio interface, and API implementation)

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
deep-sea-stories/packages/web/src/hooks/useAgentEvents.ts	Refactored to fetch historical events before subscribing, added race condition handling with active flag
deep-sea-stories/packages/backend/src/router.ts	Exported and registered the new getEvents endpoint
deep-sea-stories/packages/backend/src/controllers/notifications.ts	Added getEvents procedure to retrieve event history and last event ID
deep-sea-stories/packages/backend/src/agent/elevenlabs/session.ts	Removed file containing ElevenLabs session implementation
deep-sea-stories/packages/backend/src/agent/elevenlabs/audioInterface.ts	Removed file containing ElevenLabs audio interface
deep-sea-stories/packages/backend/src/agent/elevenlabs/api.ts	Removed file containing ElevenLabs API client

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[PiotrWodecki]

CI + Copilot