The maintainer's recycle branch is doing an action (recycle the camera)
in response to a section-level signal. Introduce a
CameraConfigUpdateEnum.refresh case as an explicit action signal — the
maintainer subscribes to refresh instead of detect, parallel with add
and remove. Publishers fire refresh alongside detect when a recycle is
needed; section-level subscribers keep their existing topic.
Since no main-process subscriber listens for detect anymore, the
refresh handler calls recreate_ffmpeg_cmds() explicitly so the shared
CameraConfig's ffmpeg_cmds is rebuilt before the new subprocesses
spawn.
Josh Hawkins
eb1709fa49