Convert Windows app to Electron and add Android Capacitor app with CI builds

windows-app/package.json

@@ -1,18 +1,51 @@
-{
-  "name": "shopify-ai-windows-app",
-  "version": "0.1.0",
-  "private": true,
-  "type": "module",
-  "scripts": {
-    "prepare-ui": "node ./scripts/sync-ui.js",
-    "dev": "npm run prepare-ui && tauri dev",
-    "build": "npm run prepare-ui && tauri build"
-  },
-  "dependencies": {
-    "@tauri-apps/api": "^1.5.4"
-  },
-  "devDependencies": {
-    "@tauri-apps/cli": "^1.5.9",
-    "fs-extra": "^11.2.0"
-  }
-}
+{
+  "name": "shopify-ai-windows-app",
+  "version": "0.1.0",
+  "private": true,
+  "main": "electron-main.js",
+  "scripts": {
+    "prepare-ui": "node ./scripts/sync-ui.js",
+    "dev": "npm run prepare-ui && electron .",
+    "build": "npm run prepare-ui && electron-builder",
+    "build:win": "npm run prepare-ui && electron-builder --win",
+    "build:mac": "npm run prepare-ui && electron-builder --mac",
+    "build:linux": "npm run prepare-ui && electron-builder --linux"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "electron": "^28.0.0",
+    "electron-builder": "^24.9.1",
+    "fs-extra": "^11.2.0"
+  },
+  "build": {
+    "appId": "com.shopifyai.desktop",
+    "productName": "ShopifyAI Desktop",
+    "directories": {
+      "output": "dist"
+    },
+    "files": [
+      "electron-main.js",
+      "electron-preload.js",
+      "ui-dist/**/*"
+    ],
+    "win": {
+      "target": [
+        "nsis",
+        "portable"
+      ],
+      "icon": "assets/icon.ico"
+    },
+    "mac": {
+      "target": "dmg",
+      "icon": "assets/icon.icns"
+    },
+    "linux": {
+      "target": "AppImage",
+      "icon": "assets/icon.png"
+    },
+    "nsis": {
+      "oneClick": false,
+      "allowToChangeInstallationDirectory": true
+    }
+  }
+}