[natew]

Audio ownership and paused loading

Managed players can claim the single Now Playing session, allowing apps to crossfade players while remote controls follow the current owner. The global player can prepare at a position while paused, without playing the opening. This prepares the package family for One 2.12.0.

await Audio.play(uri, { positionMs: 83_500, paused: true })
await Audio.resume()

const player = Audio.createPlayer(uri)
await player.setNowPlayingInfo({ title: 'Song' })

Ownership transfers on a new claim; cleanup only releases the matching owner. Replacing a managed player's source retains its claim. Apps control crossfade timing. Preparing a global player rejects if replaced or stopped; remote commands target the current owner.

Addresses #1065 and #1066.

Validation and remaining work

• Three existing audio test files passed (18 tests).
• Focused Chromium and WebKit runtime probes passed for paused and positioned loads, cancellation, ownership transfer, remote actions and late artwork.
• Package typecheck passed after providing the existing generated declaration for the built CLI worker module.
• Android :one:compileDebugKotlin passed on the final commit.
• An earlier iOS simulator run passed paused loading and resume but crashed during ownership transfer. The fix has not yet been rebuilt or rerun: the original host stalled in Xcode build preparation, and an alternate host timed out after CocoaPods setup without an executable.
• Before release, verify ownership transfer and remote play, pause and seek on physical iOS and Android devices, plus independent review and owner approval.

[natew]

iOS validation at 0c96b4a (studio-64, Xcode 27.1, SDK 27.1, fresh clone, arm64 simulator build):

• PASS: fixture xcodebuild, BUILD SUCCEEDED. Host-only generated-file fixes: 2 fixture symlink rewrites (per next-checks), 2 CLinkage modulemap /Applications/Xcode.app to Xcode-27.1.app rewrites, -jobs 8 (full parallelism hit transient EPERM on external-volume ModuleCache). No PR source touched.
• PASS: audio-ownership suite on iPhone 17 Pro simulator. Verdict: Ownership: passed: load:12000 resume:12742 replace:E_AUDIO_STATE clamp:60000 owner:true errors:removed,E_AUDIO_METADATA,E_AUDIO_ARTWORK. The ownership-transfer crash repair is now rebuilt and tested.
• PASS: audio-remote suite (Now Playing metadata set/clear via Nitro, playback continues).
• PASS: audio-interruption suite (began/ended notifications pause playback).
• Note: simulator runtime is iOS 27.0; this host's iOS 27.1 runtime supports iPhone Duo only, and the suite targets iPhone 17 Pro geometry. Build used the 27.1 SDK.
• UNVERIFIED (physical-device-only): lock-screen card continuity, stale-owner removal on device, remote play/pause/seek routing. The simulator cannot deliver remote-command events.

Evidence on studio-64: /Volumes/Studio-2TB/one-ios-1067/evidence/ios-{ownership,remote,interruption}/ (outcome.json + screenshots), full xcodebuild.log, results mirror at ~/.team-machine/evidence/one-audio-1067-ios-studio64/results.md. No readiness claimed; review and publication stay with the owner.