# WBV2-P1127-000: tracking mask module

- task: `WBV2-P1127-000`
- parent: `WBV2-P1126-000`
- status: `in_progress`
- gap: `workflow:module_tracking_mask`
- ownerFamily: `TRACKING`
- targetImplementationClass: `LOCAL_BOUNDED`

## 目标

验证 Mask Main reader、stable point raycast/marquee 和 N-022 tracking marker/resource/solve capability gates。

## 输入与范围

- Reader: `blender-5.2.0/source/blender/web_engine/web_engine_blend_reader.cpp`
- Protocol: `web/protocol/tracking-mask.ts`, `web/protocol/scene-ir.ts`
- Runtime: `web/app/src/tracking/MaskSelection.ts`, `web/app/src/app/App.tsx`, `web/app/src/three-adapter/viewport.ts`, `web/app/src/three-adapter/offscreen-viewport.ts`
- Production tests: `web/tests/e2e/smoke.spec.ts`

## 验收

```bash
npm --prefix web run test:mask-main-reader
WEB_TEST_PORT=5340 npm --prefix web run test:e2e -- --workers=1 tests/e2e/smoke.spec.ts -g "N-022 tracking|real Blender 5.2 Mask"
npm --prefix web run typecheck
```

必须记录 layers/splines/handles reader 正例、foreign/resource/solve 负例、main/offscreen marquee、worker restart、stable IDs 和 Chromium。Camera solve 未提供服务端实现时保持 BLOCKED。

## 交付与回滚

- Receipt: `tests/golden/WBV2-P1127-000/module-receipt.json`
- Manifest: `tests/golden/WBV2-P1127-000/manifest.json`
- Status: `docs/status/WBV2-P1127-000.md`
- 回滚：恢复 P1126 manifest 为 queue parent。