Service health check

curl https://api.andoai.xyz/healthz

{}

{
  "200": {
    "content": {
      "application/json": {
        "schema": {
          "additionalProperties": {
            "type": "boolean"
          },
          "title": "Response Agent Healthz Get",
          "type": "object"
        }
      }
    },
    "description": "Successful Response"
  }
}