Add beta EndCallTool

[chasef07]

Summary

• add beta EndCallTool under @livekit/agents/beta, modeled after Python behavior
• add JobContext.deleteRoom() and pass worker credentials into RunningJobInfo so deleteRoom works with env or ServerOptions credentials
• cover end-call lifecycle, duplicate same-turn calls, reusable tool instances, realtime auto tool replies, and null endInstructions behavior

Testing

• pnpm test agents/src/beta/tools/end_call.test.ts
• pnpm --filter @livekit/agents build
• pnpm --filter @livekit/agents lint (passes with existing warnings)
• pnpm exec prettier --check agents/src/beta/index.ts agents/src/beta/tools/end_call.ts agents/src/beta/tools/end_call.test.ts agents/src/beta/tools/index.ts agents/src/job.ts agents/src/worker.ts .changeset/beta-end-call-tool.md
• git diff --check

Notes

• pnpm --filter @livekit/agents api:check currently fails before this change on generated dist/index.d.ts export * as syntax already present on upstream/main.

[changeset-bot]

🦋 Changeset detected

Latest commit: 5643bbc

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

This PR includes changesets to release 29 packages

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

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[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 4 additional findings.