{"service":"医药法规知识库API","version":"5.0 (PostgreSQL + pgvector + zhparser + 千问)","auth":"除 / 和 /health 外，其余端点需要 Authorization: Bearer <API_KEY>","endpoints":{"搜索":"POST /api/agent/search","级联搜索":"POST /api/search/cascade","健康检查":"GET /health","库状态":"GET /api/stats","监管机构":"GET /api/regulatory-authorities","文档类型":"GET /api/document-types","刷新实体缓存":"POST /api/system/refresh-entities","文档列表":"GET /api/documents","文档详情":"GET /api/documents/{doc_id}","文档节点树":"GET /api/documents/{doc_id}/nodes","文档术语":"GET /api/documents/{doc_id}/terms","相似文档":"GET /api/documents/{doc_id}/similar","文档库统计":"GET /api/documents-statistics","术语分类":"GET /api/term-categories"}}