Register audio_ps5 and select it by default. Feed native AudioOut through a bounded worker queue with byte-based writes, rate negotiation, backpressure, pause/resume and cleanup. No SDL or Opus dependency.
Validation: tools/verify.sh passes all five gates (32 unit tests, 14 evidence records). tools/run-title.sh --no-build --audio-test --watch 45 records 193536 accepted/played frames, zero errors/discards, correct channel tones confirmed by the owner. A normal --no-deploy --watch 45 run remains alive and is script-closed with zero Vulkan refusals/API failures.
Evidence: evidence/native-audio/{capture,audio-test,expectation}.json. Build identity 801df0ac6a5754c3e6a6ea688f1e49e8ddd2041aeb131a637b8c8b59f4030d55. Patch count increases from 100 to 102 for registration and default; fresh replay/idempotence verified. PS5_Vulkan unchanged.
