错误处理和响应代码

{
  "success": true,
  "message": "通知已成功排队",
  "notification_id": "uuid-notification-123",
  "scheduled_time": "2024-12-25T10:30:00Z"
}

{
  "templates": [
    {
      "id": "template_001",
      "name": "welcome_user",
      "status": "approved"
    }
  ],
  "total": 1
}

{
  "error": "validation_failed",
  "message": "缺少必需字段",
  "details": {
    "field": "contact.number",
    "reason": "此字段是必需的"
  },
  "request_id": "req_123456789"
}

{
  "error": "unauthorized",
  "message": "无效或过期的访问密钥",
  "details": {
    "reason": "提供的 access_key 无效或已被撤销"
  },
  "request_id": "req_123456793"
}