Both windows had alwaysOnTop but lacked setVisibleOnAllWorkspaces, so
they stayed pinned to the Space they were first opened on. Users moving
to a different virtual desktop would lose sight of the overlay.
Calls setVisibleOnAllWorkspaces(true, { visibleOnFullScreen: true })
on macOS only — no-op on Windows/Linux so cross-platform behaviour is
unchanged.
- Add useCameraDevices hook to enumerate video input devices
- Update useScreenRecorder to support webcamDeviceId selection
- Add device selector UI above HUD bar (mic + webcam, hover-to-expand)
- All selectors and HUD bar are absolute-positioned to prevent layout shifts
- Increase HUD window to 600x200px to accommodate device panels
- Add unit tests for useCameraDevices hook