# HANDOFF — ECR-002 engineer → reviewer

**From:** ENGINEER  
**To:** REVIEWER  
**Date:** 2026-08-06  
**ECR:** ECR-002  

## Ask

对照 ECR-002 Acceptance 做代码审阅；确认 strategies/config 无 diff；golden + 新契约测试通过。

## Artifacts

- `docs/ECR/ECR-002-runtime-split.md`
- `docs/IMPLEMENTATION_REPORT/ECR-002.md`
- `docs/TEST_REPORT/ECR-002.md`
- `docs/ENGINEERING_SPEC/ECR-002-runtime-split.md`

## Diff focus

- `web/services/runtime/`（新包）
- 删除原 `web/services/runtime.py`
- `web/tests/test_*.py`、`tests/test_tf_df_init.py`
- ESS docs 更新

## Out of scope this round

- `chart_tv.js` 拆分
- 主站 WebSocket
- strategies/config