# WBV2-P1-004 Status

status: done
task: WBV2-P1-004
gate: G1
updated: 2026-08-25 America/New_York

The worker lifecycle fixture exposes a bounded cancellation/restart/dispose
contract through the Blender Text datablock and the WASM SceneIR reader.
Desktop and WASM agree that cancelled opens publish no result, stale results
from generation 1 are rejected after restart to generation 2, and CPU/WASM/GPU
owner counters return to zero after cancel, restart, and dispose. The future
extension field and schema hash survive a compressed save/reopen cycle.

Acceptance evidence:
- fixture generator exit: 0
- desktop lifecycle contract read and save/reopen exit: 0
- `npm --prefix web run test:generated-gap -- --task WBV2-P1-004` exit: 0
- `node tools/web/check-generated-gap.mjs --task WBV2-P1-004` exit: 0
- malformed blend keeps the original Main snapshot unchanged
- hash drift, cancellation, generation mismatch, and double-dispose outcomes
  are represented in the bounded lifecycle receipt

Artifacts:
- report: `tests/golden/WBV2-P1-004/worker-lifecycle-report.json`
- desktop report: `tests/golden/WBV2-P1-004/worker-lifecycle-desktop-report.json`
- command log: `tests/golden/WBV2-P1-004/command.log`
- WASM build log: `tests/golden/WBV2-P1-004/wasm-build.log`
- fixture SHA-256: `c17cf938451b7bdbcda9a04b1e6436f217269e3167804cc785fd0d32e2d9d4bb`
- saved lifecycle contract hash: `4567145720b21ffab0202d82584bc5ef41a829bc6a1be13683c35ed0115345ac`

nextTask: WBV2-P1-005