Handle missing native module @jamsch/expo-speech-recognition gracefully.
In Expo Go the native module is not available, which was causing the entire
_layout.tsx to fail to export, breaking tab navigation.
- Use dynamic require() with try/catch instead of static import
- Initialize ExpoSpeechRecognitionModule and useSpeechRecognitionEvent as no-ops
- Check module availability before calling any native methods
- isAvailable state properly reflects module presence
Tab navigation now works in Expo Go (with STT disabled).
Full STT functionality requires a development build.
- Add onVoiceDetected callback to useSpeechRecognition hook
- Triggered on first interim result (voice activity detected)
- Uses voiceDetectedRef to ensure callback fires only once per session
- Reset flag on session start/end
- Connect STT to VoiceContext in _layout.tsx
- Use useSpeechRecognition with onVoiceDetected callback
- Call interruptIfSpeaking() when voice detected during 'speaking' state
- Forward STT results to VoiceContext (setTranscript, sendTranscript)
- Start/stop STT based on isListening state
- Export interruptIfSpeaking from VoiceContext provider
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Remove expo-speech (TTS) - not used
- Remove expo-speech-recognition (STT) - not used
- Delete dead code: hooks/useSpeechRecognition.ts
These packages add native audio modules that can conflict with
LiveKit's AudioSession management on iOS.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
