{"service":"learn-showcase","weeks":["第2周","第3周","第4周","第5周","第6周","第7周","第8周","第9周","第10周"],"endpoints":["POST   /api/upload               — 上传文件夹（multipart）","GET    /api/works                — 全部上传记录（按周次分组）","GET    /api/files/:week/:teacher — 列出文件树","GET    /api/file/:week/:teacher/* — 读取文件","DELETE /api/works/:week/:teacher — 删除作业","PUT    /api/review/:week/:teacher — 上传 AI 批改报告（HTML）"]}