elevenlabs: deprecate STT modelId in favor of model

[u9g]

Description

The ElevenLabs STT plugin takes modelId while the ElevenLabs TTS plugin takes model, which makes it easy to pass the wrong parameter name when configuring both from the same config shape. Reported via MCP docs feedback in Slack. This aligns STT with TTS without breaking existing code. Companion PRs: livekit/agents#6378 (same change for Python), livekit/web#5084 (docs cross-link).

Changes Made

• Add a model option to STTOptions as the preferred spelling; modelId remains a deprecated alias that logs a deprecation warning (same pattern as the existing useRealtime deprecation and the TTS plugin's legacy modelID).
• If both are provided, model wins and a warning is logged. Behavior is otherwise unchanged, including the scribe_v1 default.
• Update the scribe example and existing tests to use model.
• Add a changeset.

Pre-Review Checklist

• Build passes: All builds (lint, typecheck, tests) pass locally
• AI-generated code reviewed: Removed unnecessary comments and ensured code quality
• Changes explained: All changes are properly documented and justified above
• Scope appropriate: All changes relate to the PR title, or explanations provided for why they're included
• Video demo: N/A — no user-visible behavior change

Testing

• All tests pass (vitest run plugins/elevenlabs/src/stt.test.ts: 6 passed, 1 skipped integration test)
• Make sure both restaurant_agent.ts and realtime_agent.ts work properly (for major changes) — N/A, plugin-scoped option rename

Additional Notes

The deprecation warning is user-visible log output for anyone currently passing modelId; the option keeps working unchanged.

[changeset-bot]

🦋 Changeset detected

Latest commit: 8a47ea5

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

This PR includes changesets to release 36 packages

Name	Type
@livekit/agents-plugin-elevenlabs	Patch
@livekit/agents	Patch
@livekit/agents-plugin-anam	Patch
@livekit/agents-plugin-anthropic	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-did	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-plugin-trugen	Patch
@livekit/agents-plugin-xai	Patch
@livekit/agents-plugins-test	Patch

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[devin-ai-integration]

✅ Devin Review: No Issues Found

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