# HANDOFF — ECR-015 Architect → Engineer

**Date:** 2026-08-13  
**ECR:** ECR-015（**Approved** · **Retrospective: true**）  
**BD:** BD-2026-015 Approved  

## Task interpretation

收口头像：确认 migration/接线/OpenAPI/H5/SDK 与 Spec R9 一致；补缺测与 TEST_REPORT；不扩 Scope。

## Load

1. `docs/ECR/ECR-015-account-avatar.md`  
2. `docs/BACKEND_DESIGN/BD-2026-015-account-avatar.md`  
3. Spec `account-auth.md` R9  
4. `.ai/definition-of-done.md`  

## Ordered plan

1. 确认 `000018` 已应用；`users.avatar_url` 可读  
2. 核对 UploadAvatar · MediaHandler · avatar.Store/ResolveAbs  
3. 补 `internal/avatar` 单测（大小/类型/路径穿越）若缺  
4. OpenAPI / SDK / MinePage 默认图路径核对  
5. TEST_REPORT · HANDOFF→reviewer · STATE  

## Smoke checklist

- [ ] 登录后「我的」上传 JPG ＜2MB → 头像更新  
- [ ] WebP/PNG OK；＞2MB 或 exe 失败文案可读  
- [ ] 未设置头像显示 default-avatar  
- [ ] 新标签打开 `/api/v1/media/avatars/...` 可见图  

## Owner

`STATE.owner = engineer`