fix: guard participant task cleanup

[rosetta-livekit-bot]

Summary

• Port fix quick reconnect participant keyerror agents#5979 to agents-js
• Avoid clearing a newer participant entrypoint task when an older task for the same identity finishes after a quick reconnect
• Add patch changeset for @livekit/agents

Testing

• pnpm build:agents
• pnpm format:check

---

Ported from livekit/agents#5979

Original PR description

JobContext._participant_available() stores participant-entrypoint tasks keyed by (identity, coro) and the done-callback does self._participant_tasks.pop((p.identity, coro)) with no default. When the same identity connects twice in quick succession (normal client reconnect on flaky mobile networks; Cloud later evicts the duplicate with DUPLICATE_IDENTITY), the second connect overwrites the dict entry at job.py:727. Both done-callbacks then pop the same key: the first wins, the second raises an unhandled KeyError into asyncio's default exception handler.

Exception in callback JobContext._participant_available.<locals>.<lambda>(<Task finishe...> result=None>)
  at .../site-packages/livekit/agents/job.py:729
KeyError: ('<identity>', <function participant_entrypoint ...>)

The code already anticipates the overlap but cleanup is not idempotent.

[changeset-bot]

🦋 Changeset detected

Latest commit: d60cec7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 34 packages

Name	Type
@livekit/agents	Patch
@livekit/agents-plugin-anam	Patch
@livekit/agents-plugin-assemblyai	Patch
@livekit/agents-plugin-baseten	Patch
@livekit/agents-plugin-bey	Patch
@livekit/agents-plugin-cartesia	Patch
@livekit/agents-plugin-cerebras	Patch
@livekit/agents-plugin-deepgram	Patch
@livekit/agents-plugin-elevenlabs	Patch
@livekit/agents-plugin-fishaudio	Patch
@livekit/agents-plugin-google	Patch
@livekit/agents-plugin-hedra	Patch
@livekit/agents-plugin-hume	Patch
@livekit/agents-plugin-inworld	Patch
@livekit/agents-plugin-lemonslice	Patch
@livekit/agents-plugin-liveavatar	Patch
@livekit/agents-plugin-livekit	Patch
@livekit/agents-plugin-minimax	Patch
@livekit/agents-plugin-mistral	Patch
@livekit/agents-plugin-mistralai	Patch
@livekit/agents-plugin-neuphonic	Patch
@livekit/agents-plugin-openai	Patch
@livekit/agents-plugin-perplexity	Patch
@livekit/agents-plugin-phonic	Patch
@livekit/agents-plugin-resemble	Patch
@livekit/agents-plugin-rime	Patch
@livekit/agents-plugin-runway	Patch
@livekit/agents-plugin-sarvam	Patch
@livekit/agents-plugin-silero	Patch
@livekit/agents-plugin-soniox	Patch
@livekit/agents-plugin-tavus	Patch
@livekit/agents-plugins-test	Patch
@livekit/agents-plugin-trugen	Patch
@livekit/agents-plugin-xai	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 1 additional finding.