Configurable voice control: hands-off command mode (next / play / record) #8

Vision

Voice should be fully configurable with selectable modes. This issue covers Mode 1 — hands-off command mode on the Repositories page: a keyword layer so you can drive it without touching the screen.

Behaviour

Continuous listening on the repos page; spoken keywords trigger actions on a "focused" repo:

• "next" → move focus to the next repo and start telling me about it (auto-play its last reply / status).
• "play" → play the focused repo's last reply (karaoke running text already built).
• "record" → start recording a voice reply to the focused repo (sends straight to its agent).
• (extensible) "stop", "open", "previous", "status".

A visible "focused repo" pointer so navigation is obvious. A wake/enable toggle so it isn't always listening.

Configurable

Settings (Profile or a voice settings panel):

• Enable/disable hands-off mode.
• Edit the trigger words (e.g. map "go" → next).
• Voice (TTS) rate/voice pick; continuous-listen on/off.

Implementation notes

• Continuous SpeechRecognition (continuous=true, interimResults) with a small grammar matcher over final transcripts; debounce + restart on onend (Chrome stops after silence).
• Reuse the existing playRepoLastReply / voiceReplyToRepo / status polling — this is a command router on top of them + a focusedRepoId pointer.
• iOS caveat: Web Speech continuous mode is unreliable on Safari; degrade to tap-to-talk there and document it.

Acceptance

On the repos page, with the mode on, saying "next … play … record" navigates + plays + records hands-free; trigger words are editable in settings.

Relationship

Mode 2 (the cross-repo Overseer agent) is its own issue — this is the lightweight command layer; the Overseer is the conversational brain.