[viralcodex]

Changes

• Store reservation, attachment, retirement, rollback, and failed cleanup state in authoritative ownership records.
• Make capture startup/recovery/shutdown explicit and reject helpers that exit between readiness and publication.
• Propagate cancellation to native commands and discovery; keep shared prerequisite installation owned by the runtime.
• Retry only unfinished cleanup and preserve the original shutdown intent.
• Align native and RPC deadlines, and preserve execution uncertainty in tool failures.
• Consolidate old close/reopen tests and rebuild the shipped bundles.

Verification

• Exact PR tree: release:check passes on Node 24.13.0.
• 287 tests pass, one existing Bun-only skip.
• Two fresh helper installs, native module loading, offline reuse, and stale-cache rejection pass.

Sequence

2 of 3. Builds on merged #28; desktop connection and watcher recovery follow.

[viralcodex]

Reviewed reservation/physical-alias ownership, failed close and rollback quarantine, preserved shutdown intent, shared-task cancellation, disposal retries, and the readiness-to-publication exit race. Exact-tree release validation passes locally and in Linux CI: https://github.com/viralcodex/opencode-demul/actions/runs/42028772281. Fresh helper installation and offline-cache checks also pass on macOS arm64.