Rebuild local Blender WASM environment and recovery evidence

docs/status/WBV2-P4-001.md

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+# WBV2-P4-001 status
+
+- task: `WBV2-P4-001`
+- parent: `WBV2-P3-005`
+- parity: `MODIFIER.DECLARED_SLICES`
+- implementationClass: `LOCAL_BOUNDED`
+- status: `done`
+- fixture: `tests/files/web/generated/WBV2-P4-001-MODIFIER.DECLARED_SLICES.blend`
+
+## Evidence
+
+- Blender desktop and WASM/Main expose the same Bevel, Decimate, and Particle System stack. Bevel/Decimate parameters and dependency ordering match; the Particle System is retained explicitly as `evaluationStatus: BLOCKED`.
+- Main modifier visibility toggles commit through the authoritative path. A bounded Decimate profile applies from 8 vertices/12 triangles to 6 vertices/8 triangles; stale profiles are rejected without a revision change. Save/reopen preserves the resulting stack and geometry.
+- Malformed input is rejected without mutating Main. The unsupported modifier remains visible and blocked rather than being silently treated as evaluated.
+
+## Commands
+
+- `build_blender_5.2.0/bin/blender -b --factory-startup --python tools/web/generated/WBV2-P4-001.py -- tests/files/web/generated/WBV2-P4-001-MODIFIER.DECLARED_SLICES.blend`
+- `build_blender_5.2.0/bin/blender -b --factory-startup --python tools/web/check-wbv2-p4-001-desktop.py -- tests/files/web/generated/WBV2-P4-001-MODIFIER.DECLARED_SLICES.blend tests/golden/WBV2-P4-001/modifier-desktop-report.json`
+- `node --check tools/web/check-generated-gap.mjs`
+- `npm --prefix web run test:generated-gap -- --task WBV2-P4-001`
+- `node tools/web/check-generated-gap.mjs --task WBV2-P4-001`
+- `node tools/web/check-task-context.mjs --task WBV2-P4-001 --write`
+
+## Handoff
+
+- nextTask: `WBV2-P4-002`
+- queue mutation: allowed after manifest and parent hash validation