/* manifest.json (PWA 配置文件) */
{
  "name": "PWA 通知測試",
  "short_name": "通知測試",
  "start_url": "./",
  "display": "standalone",
  "background_color": "#f3f4f6",
  "theme_color": "#3b82f6",
  "icons": [
    {
      "src": "https://via.placeholder.com/192/000000/FFFFFF/?text=PWA",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "https://via.placeholder.com/512/000000/FFFFFF/?text=PWA",
      "sizes": "512x512",
      "type": "image/png"
    }
  ]
}