Voice & Video tab no longer fires getUserMedia on mount. Uses
navigator.permissions.query({name:'camera'}) for state detection,
which is passive (no LED activation). Preview only opens when the
user explicitly clicks the dormant tile or the prompt-state CTA.
In-call mode unchanged (attaches existing LK track, no extra LED).
Spec and plan updated to reflect the corrected design — the
"auto-start preview, no Test Camera toggle" rationale was wrong;
macOS holds the camera LED on for ~2s after release, so any
incidental getUserMedia call (probe, transient mount) flashes the
LED in the user's face even when they aren't on the Voice & Video
panel. Privacy-correct UX: never light the LED without an explicit
user action.
Jannis Braun
4748df8b24