Rebuild local Blender WASM environment and recovery evidence

docs/status/WBV2-P1-004.md

@@ -0,0 +1,32 @@
+# 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