# HANDOFF — ECR-015 Engineer → Reviewer

**From:** Engineer  
**To:** Reviewer  
**Date:** 2026-08-13  
**ECR:** ECR-015  
**Retrospective:** true  

## Delivered

- 核对 Spec R9 接线（migration / auth / media / H5 / SDK）  
- 新增 `internal/avatar/store_test.go`（穿越 · 类型 · 大小 · 覆盖写）  
- OpenAPI 补错误码与路径约束说明  
- TEST_REPORT  

## Verify

```bash
export ESS_ROOT=/Users/jack/Project/skills/engineering-spec-system
cd apps/api && go test ./internal/avatar/ -count=1
cd ../.. && python scripts/ess-validate.py --phase coding --ecr ECR-015
```

## Owner next

`STATE.owner = reviewer`