feat(elevenlabs): add secondary_languages for Scribe v2 realtime STT

[rosetta-livekit-bot]

Ports livekit/agents#7086.

Adds secondaryLanguages to ElevenLabs Scribe v2 realtime STT, including constructor configuration, runtime option updates, stream reconnects, and repeated secondary_languages WebSocket query parameters. Batch models warn and ignore the option, and batch requests remain unchanged.

Validation

• pnpm test plugins/elevenlabs/src (28 passed, 2 credential-gated skipped)
• pnpm build
• pnpm lint
• pnpm --filter @livekit/agents-plugin-elevenlabs api:check
• pnpm format:check
• cue-cli voice-mode runtime assertion against a temporary local ElevenLabs-compatible WebSocket requiring repeated secondary_languages=es&secondary_languages=fr parameters

Source diff coverage

Source file	Classification	Target coverage
livekit-plugins/livekit-plugins-elevenlabs/livekit/plugins/elevenlabs/stt.py	Adapted	Ported to plugins/elevenlabs/src/stt.ts; Python public secondary_languages becomes target-standard camelCase secondaryLanguages, while the wire parameter remains secondary_languages. Constructor gating/warning, resolved options, runtime updates, active-stream propagation, reconnect behavior, and repeated encoded query parameters are preserved. The public API report in plugins/elevenlabs/etc/agents-plugin-elevenlabs.api.md was regenerated.
tests/test_plugin_elevenlabs_stt.py	Not applicable	The only source test change initializes the newly required Python dataclass field in an existing helper. Target options are optional and structurally typed, so no corresponding required-field fixture exists to update. No additional test was invented beyond the authoritative source diff.

---

Ported from livekit/agents#7086

Original PR description

Lets bilingual apps constrain speech prediction to a limited set of languages alongside language_code, sent as repeated secondary_languages query params on the realtime connect URL (mirroring keyterms).

The batch speech-to-text endpoint does not accept the param, so it is gated on the realtime path: a non-realtime model drops it with a warning at construction and in update_options, and it is never added to the batch request form.

Based on #6944.

[changeset-bot]

🦋 Changeset detected

Latest commit: 292de88

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

This PR includes changesets to release 39 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-azure	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-krisp	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-protoface	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 found 1 potential issue.