Fix Android PWA installation - add proper web app instead of shortcut

Android PWA Requirements:
- Add mobile-web-app-capable meta tag for Android
- Add application-name meta tag
- Add prefer_related_applications: false to manifest
- Add explicit icon sizes (192x192, 512x512) for both any and maskable
- Add orientation: any for flexible display
- Add lang and dir to manifest for proper localization
- Add ?source=pwa to start_url for analytics
- Add crossorigin="use-credentials" to manifest link
- Add proper service worker registration in main.ts
- Add vite-plugin-pwa/client types to env.d.ts

This ensures Android recognizes it as a full PWA instead of creating a shortcut

Co-authored-by: Cursor <cursoragent@cursor.com>

src/main.ts

@@ -10,3 +10,12 @@ app.use(createPinia())
 app.use(router)
 
 app.mount('#app')
+
+// Register PWA service worker
+if ('serviceWorker' in navigator) {
+  window.addEventListener('load', () => {
+    navigator.serviceWorker.register('/sw.js').catch(() => {
+      // Service worker registration failed, that's okay
+    })
+  })
+}