# Handoff

**From:** ARCHITECT  
**To:** ENGINEER  
**ECR:** ECR-001  
**State:** design → coding  
**Date:** 2026-08-05  

## Artifacts

- [x] ECR (Approved)
- [x] PRODUCT_SPEC
- [x] ENGINEERING_SPEC
- [x] RISK_REVIEW (N/A)
- [x] ADR-001
- [x] TRACEABILITY
- [ ] TEST_REPORT / CODE_REVIEW / EXP (engineer / reviewer)

## Restrictions — Do not modify

- `config/`、`strategies/` 内容
- 缠论算法语义、`/api/analyze` 破坏性变更
- 计划文件本身

## Goal for receiver

按 ENGINEERING_SPEC 完成包化、TF_DF 拆分、Web 分层、前端模块化、golden 测试与文档收尾。

## Done for this hop

- [x] ESS docs 落盘
- [x] ECR Approved（计划实施授权）

## References

- `docs/ECR/ECR-001-chan-web-restructure.md`
- `docs/ENGINEERING_SPEC/ECR-001-restructure.md`
- Plan: ESS Chan Refactor（1B+2B）