Advance WBV2 high-value domains through P13

docs/tasks/WBV2-P13-002.md

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+# WBV2-P13-002: geometry_nodes_engine_receipt
+
+- task: WBV2-P13-002
+- parent: WBV2-P13-001
+- status: in_progress
+- gap: workflow:geometry_nodes_engine_receipt
+- ownerFamily: NODES
+- targetImplementationClass: LOCAL_BOUNDED
+
+## 目标
+
+Execute the bounded NODES domain using existing source evidence and the compiled WebEngine runtime.
+
+## 输入与范围
+
+- Focused input: `tests/files/web/modifier_geometry_nodes_scene.blend`
+- Existing source receipt: `tests/golden/WBV2-P4-002/nodes-report.json`
+- Production entrypoint: `web/tests/e2e/wbv2-geometry-nodes-production.spec.ts`
+
+## 验收
+
+- `node tools/web/generate-wbv2-geometry-nodes-receipt.mjs --write`
+- `node tools/web/check-task-context.mjs --task WBV2-P13-002 --write`
+
+Malformed or unsupported input, hash drift, non-Chromium execution, non-exact save/reopen, false inventory completion, or missing Main mutation must keep in_progress and must not advance nextTask.
+
+## 交付与回滚
+
+- Reports: `tests/golden/WBV2-P13-002/`
+- Status: `docs/status/WBV2-P13-002.md`
+- Manifest: `tests/golden/WBV2-P13-002/manifest.json`
+- Rollback: restore WBV2-P13-001 as queue parent.