- FAB button now correctly stops session during speaking/processing states
- Echo prevention: STT stopped during TTS playback, results ignored during speaking
- Chat TTS only speaks when voice session is active (no auto-speak for text chat)
- Session stop now aborts in-flight API requests and prevents race conditions
- STT restarts after TTS with 800ms delay for audio focus release
- Pending interrupt transcript processed after TTS completion
- ChatContext added for message persistence across tab navigation
- VoiceFAB redesigned with state-based animations
- console.error replaced with console.warn across voice pipeline
- no-speech STT errors silenced (normal silence behavior)
- Remove speaker button empty space (2-button centered layout)
- Remove "Asteria voice" text from voice call screen
- Fix chat input visibility with keyboard
- Add keyboard show listener for auto-scroll
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
