Fix PWA manifest link injection and navigateFallback error

- Add useHead() in app.vue to inject manifest and PWA meta tags
- Set navigateFallback to undefined to prevent non-precached-url error
- Add includeAssets configuration for PWA module
- Fixes service worker error on initial page load

🤖 Generated with [Claude Code](https://claude.com/claude-code)

nuxt4/app/app.vue

@@ -50,4 +50,18 @@
 
 <script setup lang="ts">
 const { isAuthenticated } = useAuthentik()
+
+// Configurar meta tags para PWA
+useHead({
+  link: [
+    { rel: 'manifest', href: '/manifest.webmanifest' },
+    { rel: 'icon', type: 'image/svg+xml', href: '/icon.svg' },
+    { rel: 'apple-touch-icon', href: '/apple-touch-icon.png' }
+  ],
+  meta: [
+    { name: 'theme-color', content: '#00DC82' },
+    { name: 'apple-mobile-web-app-capable', content: 'yes' },
+    { name: 'apple-mobile-web-app-status-bar-style', content: 'default' }
+  ]
+})
 </script>