Rebuild local Blender WASM environment and recovery evidence

docs/status/WBV2-P2-002.md

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+# WBV2-P2-002 status
+
+- task: `WBV2-P2-002`
+- parent: `WBV2-P2-001`
+- parity: `OBJECT.TRANSFORM_HIERARCHY`
+- implementationClass: `LOCAL_EXACT`
+- status: `done`
+- fixture: `tests/files/web/generated/WBV2-P2-002-OBJECT.TRANSFORM_HIERARCHY.blend`
+
+## Evidence
+
+- Desktop and WASM preserve stable parent/child object IDs, local transforms, world matrices, and source/target collection membership.
+- `setObjectTransform` commits parent translation and propagates child world translation to `[2, 2, 0]`.
+- Parent-cycle and invalid linked/locked target edits reject before commit without changing revision.
+- Collection move and unparent-with-keep-world commit through authoritative Main; undo and redo are exact.
+- Desktop and WASM save/reopen preserve nodes and collections; malformed input is rejected without Main mutation.
+
+## Production fixes
+
+- Failed command history restoration no longer advances session revision; undo/redo still advance it.
+- Unparent keep-world uses authoritative raw parent/local matrices and decomposes the captured world matrix.
+
+## Commands
+
+- `npm --prefix web run test:generated-gap -- --task WBV2-P2-002`
+- `node tools/web/check-generated-gap.mjs --task WBV2-P2-002`
+- `node tools/web/check-task-context.mjs --task WBV2-P2-002 --write`
+
+## Handoff
+
+- nextTask: `WBV2-P2-003`
+- queue mutation: allowed after manifest and parent hash validation