{"service":"LLM Chat API","version":"1.0.0","description":"精简版 LLM 文字聊天服务","endpoints":{"welcome":"POST /chat/welcome - 获取开场白/欢迎语","chat":"POST /chat - 发送聊天消息","chat_stream":"POST /chat/stream - 流式聊天","roles":"GET /roles - 获取所有角色","role_info":"GET /roles/{role_id} - 获取角色详情","health":"GET /health - 健康检查","pool_status":"GET /pool-status - 连接池状态监控"},"timestamp":1775496696.9408376}