{
  "id": "1_user_count_card",
  "title": "จำนวนผู้ใช้ทั้งหมด",
  "type": "card",
  "refreshInterval": 300000,
  "dataSource": {
    "type": "db",
    "connection": {
      "host": "localhost",
      "dbname": "my_dashboard_db",
      "user": "root",
      "password": ""
    },
    "query": "SELECT COUNT(id) as total_users FROM users"
  },
  "displayOptions": {
    "valueKey": "total_users",
    "label": "ผู้ใช้งานในระบบ"
  }
}