# WBV2-P1108-000: Geometry Nodes graph module

- task: `WBV2-P1108-000`
- parent: `WBV2-P1107-000`
- status: `in_progress`
- gap: `workflow:module_nodes_graph`
- ownerFamily: `NODES`
- targetImplementationClass: `LOCAL_EXACT`

## 目标

按功能模块验证 Geometry Nodes graph identity、allowlisted depsgraph evaluation、field budget 和 unsupported graph retention，复用 P13 的 source-backed receipts。

## 输入与范围

- Blender Main/API/reader: `blender-5.2.0/source/blender/web_engine/web_engine_main_state.cpp`, `blender-5.2.0/source/blender/web_engine/web_engine_api.cpp`, `blender-5.2.0/source/blender/web_engine/web_engine_blend_reader.cpp`
- Protocol: `web/protocol/geometry-nodes.ts`, `web/protocol/geometry-node-commands.ts`, `web/protocol/depsgraph.ts`, `web/protocol/web-engine.ts`
- Client/runtime: `web/app/src/engine-client/WebEngineClient.ts`, `web/app/src/workers/web-engine.worker.ts`, `web/app/src/app/App.tsx`
- Existing receipts: `tests/golden/WBV2-P13-002/manifest.json`, `tests/golden/WBV2-P13-004/manifest.json`

## 验收

```bash
npm --prefix web run test:geometry-node-evaluator-golden
npm --prefix web run test:geometry-node-field-budget
npm --prefix web run test:e2e -- --workers=1 tests/e2e/wbv2-geometry-nodes-production.spec.ts
npm --prefix web run typecheck
```

必须记录 allowlisted graph/depsgraph 正例、unsupported node 与预算溢出负例、rejected graph retention、save/reopen、worker restart、Chromium 和确定性第二次运行。allowlist 历史断言与当前 materialization 行为的差异保持显式，不得通过放宽断言制造 parity。

## 交付与回滚

- Receipt: `tests/golden/WBV2-P1108-000/module-receipt.json`
- Manifest: `tests/golden/WBV2-P1108-000/manifest.json`
- Status: `docs/status/WBV2-P1108-000.md`
- 回滚：恢复 P1107 manifest 为 queue parent，不改写 P13 既有 receipt。