App Settings can now restore only the staged canonical scene. The VM saves
pending edits first, resets that scene, reloads immediately, and keeps the same
scene staged. Other scene edits survive; the action is disabled while live or
recording. 615 tests green, clean build with 0 warnings.
Reference: OBS Scene Collections keep scene/source sets distinct:
https://obsproject.com/kb/scene-collections
App Settings now offers a clearly described all-scenes reset. It is disabled
while live or recording and reloads the restored layout immediately. The
integration test drives the real VM command and checks the Settings binding.
614 tests green, clean build with 0 warnings.
Reference: OBS Scene Collections are a distinct saved set of scenes and sources:
https://obsproject.com/kb/scene-collections