Add SpeechTranscriber as STT option to Assist#4384

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Copilot wants to merge 6 commits intomainfrom

copilot/add-local-audio-transcription

Commits on Mar 9, 2026

Initial plan

Copilot
authored and
bgoncal
committed
Add local audio transcription feature with on-device STT settings, language selection, and fallback mechanism

Copilot
and
bgoncal
committed
Address code review: improve readability, fix race conditions in SpeechTranscriber

Copilot
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bgoncal
committed
Use SpeechTranscriber as SPM dependency instead of copied file

Copilot
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bgoncal
committed
Fix race condition in SpeechTranscriberAdapter by tracking active task

Copilot
and
bgoncal
committed
Fix iOS 17+ availability: split protocols from adapter, gate with @available, add to Xcode project

Copilot
and
bgoncal
committed