- Introduce `music.combat` playlist (same shuffled contract as `game`) with its own per-context volume override (`volumes.combat`).
- Add `GameScene.setCombatMusic(active)` wired to the `_setCombatBar` seam: combat live stops the deep-space shuffle and starts the combat one; combat over swaps back unless the scene is asleep on a world's surface.
- Track sleep/wake with `_asleep` so the wake handler resumes the correct context (combat if still active, otherwise deep-space).
- Generalize `startMusicShuffleOn` to take a `context` parameter for independent volume resolution.
- Update preload to queue combat tracks under their derived keys and extend tests for combat shuffle, context swap, re-fire, asleep behavior, and data contract.
Brian Fertig
27a9a59c03