## What changed
- Add `Ctrl+X` to toggle the microphone for the active voice session on the current thread, with a footer hint and guards for modals, popups, and repeated key events.
- Show a recording dot in the terminal title's activity indicator while the microphone is listening, respecting title settings and clearing it when capture stops.
- Replace the microphone and speaker bars with compact Braille meters showing four recent amplitude samples.
- Briefly show `heard` when voice input interrupts speech, when animations are enabled.
## Testing
Add regression tests for shortcut routing, amplitude glyphs, interruption acknowledgment, and terminal title lifecycle, plus updated voice footer snapshots.
GitOrigin-RevId: e1dc0c1744667e646e0040e247c5a0409b416075
4b0d9669cc