curl --request GET \
  --url http://127.0.0.1:{port}/health

{
  "ok": true,
  "app_version": "<string>",
  "api_version": 123,
  "port": 123,
  "pid": 123,
  "providers": [
    {
      "id": "<string>",
      "key_present": true,
      "reachable": true
    }
  ],
  "post_processing_providers": [
    {
      "id": "<string>",
      "key_present": true,
      "reachable": true
    }
  ],
  "local_models": {
    "whisper": [
      {
        "id": "<string>",
        "displayName": "<string>",
        "installed": true
      }
    ],
    "parakeet": [
      {
        "id": "<string>",
        "displayName": "<string>",
        "installed": true
      }
    ],
    "qwen3_asr": [
      {
        "id": "<string>",
        "displayName": "<string>",
        "installed": true
      }
    ],
    "apple_speech": [
      {
        "id": "<string>",
        "displayName": "<string>",
        "installed": true
      }
    ],
    "local_llm": [
      {
        "id": "<string>",
        "displayName": "<string>",
        "installed": true
      }
    ]
  }
}