Audio

Not implemented. engine/audio/ is reserved.

• Emitters and listeners use frame-aware transforms.
• Zones, occlusion, and environmental sends.
• Streaming ambience and music.
• Gameplay audio events are decoupled from sample playback.
• Server cooks keep gameplay-relevant metadata only, not the renderer or the sample bank, unless a target needs it.

Audio streaming uses the same residency language as assets: unresolved, loading, resident, evicted, failed. Do not give audio a private world origin.