{
  "id": "2_product_price_chart",
  "title": "ราคาสินค้า (จากไฟล์ CSV)",
  "type": "chart",
  "refreshInterval": 0,
  "dataSource": {
    "type": "csv",
    "path": "data/products.csv"
  },
  "displayOptions": {
    "chartType": "bar",
    "labelsColumn": "product_name",
    "datasets": [
      {
        "label": "ราคา (บาท)",
        "dataKey": "price",
        "backgroundColor": "rgba(0, 123, 255, 0.6)",
        "borderColor": "rgba(0, 123, 255, 1)",
        "borderWidth": 1
      }
    ]
  }
}