- Loop a muted bee-on-flower clip behind the board during the intro,
fading it in over the felt base with a dim layer for readability.
- Reveal the difficulty panel on the first full loop of the clip, with a
~20s fallback timer and an immediate reveal on video load/playback error.
- Swap the intro clip for a preloaded honeycomb PNG once a puzzle starts;
fall back to the felt rectangle if the image is unavailable.
- Register the still background in the asset manifest so GameRoomScene
preloads it before the scene launches.
