Rebuild local Blender WASM environment and recovery evidence

docs/status/WBV2-P3-001.md

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+# WBV2-P3-001 status
+
+- task: `WBV2-P3-001`
+- parent: `WBV2-P2-005`
+- parity: `MATERIAL.PBR_UV`
+- implementationClass: `LOCAL_BOUNDED`
+- status: `done`
+- fixture: `tests/files/web/generated/WBV2-P3-001-MATERIAL.PBR_UV.blend`
+
+## Evidence
+
+- Desktop and WASM expose matching Principled material fields, active UV data and stable mesh/material IDs.
+- Main transactions create and activate a secondary UV map, unwrap the cube, and update Principled values; final revision is 5 and save/reopen is exact.
+- The declared Noise node is retained as an `UNSUPPORTED` node with a reader warning; invalid UV selection and malformed blend input fail without revision/Main mutation.
+
+## Commands
+
+- `build_blender_5.2.0/bin/blender -b --factory-startup --python tools/web/generated/WBV2-P3-001.py -- tests/files/web/generated/WBV2-P3-001-MATERIAL.PBR_UV.blend`
+- `npm --prefix web run test:generated-gap -- --task WBV2-P3-001`
+- `node tools/web/check-generated-gap.mjs --task WBV2-P3-001`
+- `node tools/web/check-task-context.mjs --task WBV2-P3-001 --write`
+
+## Handoff
+
+- nextTask: `WBV2-P3-002`
+- queue mutation: allowed after manifest and parent hash validation