{"status":"online","service":"Edge-TTS HTTP API","message":"Edge-TTS 文本转语音接口已就绪，针对 ESP32 等嵌入式设备优化","endpoints":{"GET /tts":"标准TTS接口（支持整包下载或流式，默认带缓存）","GET /tts/stream":"极低延迟流式接口（chunked transfer，边下边播）","POST /tts":"JSON请求体TTS接口（适合较长文本）","GET /voices":"查询支持的音色列表（支持 ?lang=zh 过滤）","GET /health":"服务健康与缓存状态统计","POST /cache/clear":"清理本地音频缓存"},"esp32_quick_example":"http://<SERVER_IP>:5050/tts?text=你好世界&format=mp3"}