Provider 狀態查詢 (`GET /v1/providers`)

查詢底層各個 TTS Provider 的啟用狀態、預設發音人與別名對應關係。

💡 回應範例

json

{
  "providers": {
    "edgetts": {
      "enable": true,
      "engine": "edgetts",
      "default_voice": "zh-CN-XiaoxiaoNeural",
      "voice_aliases": {
        "alloy": "zh-CN-XiaoxiaoNeural",
        "echo": "zh-CN-YunxiNeural"
      }
    }
  }
}