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

android-app/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "shopify-ai-android-app",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "prepare-ui": "node ./scripts/sync-ui.js",
+    "build": "npm run prepare-ui && npx cap sync android",
+    "cap:init": "npx cap init 'ShopifyAI' com.shopifyai.app --web-dir www",
+    "cap:add": "npx cap add android",
+    "cap:sync": "npx cap sync android",
+    "cap:open": "npx cap open android",
+    "android:build": "npm run build && cd android && ./gradlew assembleDebug"
+  },
+  "dependencies": {
+    "@capacitor/android": "^5.6.0",
+    "@capacitor/core": "^5.6.0",
+    "@capacitor/preferences": "^5.0.7",
+    "@capacitor/http": "^5.0.7"
+  },
+  "devDependencies": {
+    "@capacitor/cli": "^5.6.0",
+    "fs-extra": "^11.2.0"
+  }
+}