## Why
Voice controls replaced the normal footer and could be truncated at narrow widths. Give them dedicated space while keeping the status line visible.
## What changed
- Render voice status, `ctrl+x` mute/unmute, and `/voice stop` above the draft, with separate microphone and Codex audio history meters.
- Keep control positions stable across mute states, prioritize stop at narrow widths, and hide the strip when vertical space is needed for the draft and cursor.
- Reflect actual microphone capture in the recording indicator, respect reduced motion, and allow muting during connection once the audio handle is available.
- Preserve speaker history when muting the microphone and clear speaker samples when playback is suppressed.
## Testing
Add layout and snapshot regressions for voice states, narrow and clipped composers, recording colors, independent audio histories, and status-line visibility. Extend coverage for audio intensity scaling and spoken transcript rendering.
GitOrigin-RevId: 9deb432654f4328cc8a577b8896eee088a0a1d5e
Benjamin Carlsson
98c7c0415b