Real-Frame testing (2026-09-29) found an unworn headset enters standby
within seconds; SetOverlayRaw then returns RequestFailed (23) and the
movie died. The player now drops frames during standby, keeps audio
and pacing, re-sends stills and the theatre surround after waking, and
only errors after five minutes without an accepted frame.
A Stop arriving while the player is already shutting down is ignored,
so a finished video stays 'ended' instead of 'error: Stopped'. The
status now reports the layout's real source (filename/metadata).
Docs record the end-to-end device matrix (API, web UI, CLI).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
