fix(gradium): update parameters

[rosetta-livekit-bot]

Ports livekit/agents#7014 to the Gradium TypeScript plugin.

• use Harper (4SZHfMpw-p46Ywgs) as the default TTS voice
• allow TTS.updateOptions() to update voiceId
• add a patch changeset for @livekit/agents-plugin-gradium

The source PR adds or modifies no tests.

Source diff coverage

File-by-file classification

• Adapted: livekit-plugins/livekit-plugins-gradium/livekit/plugins/gradium/__init__.py -> plugins/gradium/src/index.ts. The target already uses explicit named exports and does not export LLM, so the phantom-export fix is already satisfied without an edit.
• Adapted: livekit-plugins/livekit-plugins-gradium/livekit/plugins/gradium/stt.py -> plugins/gradium/src/stt.ts. The target already resolves modelEndpoint in the same order: explicit option, GRADIUM_MODEL_ENDPOINT, then the hosted ASR endpoint. The removed Python-only TODO has no target counterpart, so no edit is needed.
• Ported: livekit-plugins/livekit-plugins-gradium/livekit/plugins/gradium/tts.py -> plugins/gradium/src/tts.ts. Updated the default voice ID to Harper and added voiceId to the options accepted by updateOptions; endpoint precedence was already equivalent in the target.

Verification

• pnpm exec vitest run plugins/gradium --passWithNoTests (passes; the package currently has no test files)
• pnpm build
• pnpm lint
• pnpm exec prettier --check "plugins/gradium/src/tts.ts" ".changeset/quiet-dodos-smile.md"
• pnpm test attempted after build: 1,361 tests pass; unrelated existing/environmental failures remain in AMD, OpenAI/Cerebras setup, an example LLM assertion, Hugging Face download timeout, Silero fixture setup, and worker cleanup.

Authoritative source: livekit/agents#7014

---

Ported from livekit/agents#7014

Original PR description

• Remove "LLM" from all: the plugin exports no LLM, so 'from livekit.plugins.gradium import *' raised AttributeError.
• Make GRADIUM_MODEL_ENDPOINT effective for TTS and STT: the parameter's non-None default meant the documented env var was never consulted. Default endpoints are unchanged when neither is set.
• Allow switching voices via update_options(voice_id=...): the existing voice parameter is a fallback that the voice_id default always shadowed.
• Change the default TTS voice to 4SZHfMpw-p46Ywgs (Harper), a voice from the public flagship catalog, matching the published LiveKit docs.

[changeset-bot]

🦋 Changeset detected

Latest commit: c8b41ef

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-gradium	Patch
@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-did	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-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.