# WBV2-P1137-000: authorize Metaball elements module

- task: WBV2-P1137-000
- parent: WBV2-P1136-001
- status: done
- gap: workflow:authorize_metaball_elements_module
- ownerFamily: PROGRAM
- targetImplementationClass: QUEUE_ONLY
- Implementation entrypoint: `node tools/web/authorize-wbv2-p1137.mjs`

## 目标

Authorize one source-backed Metaball element transaction module while preserving P1136 evidence and the historical inventory.

## 输入与范围

- Parent manifest: `tests/golden/WBV2-P1136-001/manifest.json`
- Blender source: `blender-5.2.0/source/blender/web_engine/web_engine_main_state.cpp`
- Web protocol: `web/protocol/web-engine.ts`
- New module: `WBV2-P1137-001`

## 验收

- P1136 source and receipt hashes remain bound
- Metaball element Main/protocol/Worker sources are present
- exactly one source-backed module is active
- malformed, unsupported, missing source or hash-drift input keeps the module in_progress
- node tools/web/check-execution-control-plane.mjs

## 交付与回滚

- Manifest: `tests/golden/WBV2-P1137-000/manifest.json`
- Rollback: restore WBV2-P1136-001 as the terminal queue parent and leave WBV2-P1137-001 unstarted.