{"status":"ok","message":"AI 助手后端服务运行中（含知识库 + 资产库 + 商品卡片 + 优惠券 + 点击追踪 + 销售型 AI 客服 + 视频反解匹配 + 生成会话持久化 + 视频多模式生成 + 技能意图语义兜底 + Agent 全自动执行）","public_base_url":"https://www.heimi888.com","UPLOAD_DIR":"/opt/ai-ecommerce-backend/uploads","AGNES_API_KEY_length":51,"sales_agent_available":true,"total_products":14,"total_sessions":1,"total_gen_sessions":3,"total_knowledge":0,"total_assets":0,"total_coupons":3,"card_clicks":{"total_shown":0,"total_clicked":0},"features":["Agnes 后端代理","5 级智能商品匹配","视频队列自动重试","AI 意图识别","AI 电商策略分析","临时图床","视频反解","★ 视频反解并匹配商品","素材持久化","多轮对话上下文","上次生成结果记忆","企业知识库","向量检索","引用溯源","访问统计","AI 自动提炼 FAQ","图片/视频资产库","商品链接卡片","卡片点击追踪","卡片样式自定义","多商品卡片轮播","优惠券卡片","AI 智能选品（DeepSeek）","★ 销售型 AI 客服（状态机 + 知识库 + 推荐 + 成交学习）","★ AI 看图识内容（base64 中转）","★ 一键识别并替换","★ blob 兜底拒绝","★ 生成会话持久化（方案 C）","★ 生成会话列表 / 保存 / 加载 / 删除","★ 图片/视频持久化（UPLOAD_DIR 挂 Volume）","★ 图片/视频 base64 兜底返回","★ 视频多模式生成（text / keyframe / reference）","★ 参考视频生成同款视频（videos 参数）","★ 首帧控制图生视频（first_frame）","★ 技能意图语义兜底（resolve-skill）","★ Agent 全自动执行（DeepSeek 决策 + SSE 流式 + 商品编辑确认）","★ 素材从 URL 上传（/api/assets/upload-from-url）"]}