fix(soniox): surface STT server errors

[rosetta-livekit-bot]

Fixes #5854

Summary

• turn Soniox STT error_code / error_message frames into APIStatusError
• preserve the existing final transcript / usage flush before surfacing the error
• let APIError propagate through the receive loop and _run instead of being swallowed by broad exception handlers
• add a unit test for an error frame without tokens

Tests

• python -m pytest tests\test_plugin_soniox_stt.py -q -p no:cacheprovider
• python -m ruff check livekit-plugins\livekit-plugins-soniox\livekit\plugins\soniox\stt.py tests\test_plugin_soniox_stt.py
• python -m ruff format --check livekit-plugins\livekit-plugins-soniox\livekit\plugins\soniox\stt.py tests\test_plugin_soniox_stt.py
• python -m py_compile livekit-plugins\livekit-plugins-soniox\livekit\plugins\soniox\stt.py tests\test_plugin_soniox_stt.py
• git diff --check

[changeset-bot]

🦋 Changeset detected

Latest commit: f2c871a

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-plugin-soniox	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-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-tavus	Patch
@livekit/agents-plugin-trugen	Patch
@livekit/agents-plugin-xai	Patch
@livekit/agents-plugins-test	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 2 additional findings.