# HANDOFF — ECR-013 Architect → Engineer

**Date:** 2026-08-13  
**ECR:** ECR-013（**Approved**）  
**BD:** BD-2026-013 Approved  

## Task interpretation

落地探索 curated 题库 A 集：目录 API · 作答/结果回看 · H5 宫格/分类 · OpenAPI · 图标去重 · 探索返回。

## Load

1. `docs/ECR/ECR-013-scale-bank-explore.md`  
2. `docs/BACKEND_DESIGN/BD-2026-013-scale-bank-explore.md`  
3. Spec `explore-test.md`  
4. `.ai/definition-of-done.md`  

## Ordered plan

1. 核对 scalebank embed 与 R13 范围（无临床）  
2. OpenAPI 补 `/scale-bank/*`  
3. 抽取 H5 图标 allowlist；确认 R8/R14  
4. 单测 + integration + vitest  
5. TEST_REPORT · HANDOFF→reviewer · STATE  

## Owner

`STATE.owner = engineer`