Improve PWA offline functionality and fix session caching

- Enable navigateFallback for offline navigation support
- Add JSON files to glob patterns for heroicons support
- Change Authentik API caching from NetworkFirst to NetworkOnly to prevent stale session data
- Add offline detection in checkSessionStatus with proper user feedback
- Add no-cache headers to /api/auth/status endpoint to prevent browser caching
- Show "Modo Offline" toast when user tries to check session while offline

nuxt4/nuxt.config.ts

@@ -72,22 +72,15 @@ export default defineNuxtConfig({
       ]
     },
     workbox: {
-      navigateFallback: undefined,
-      globPatterns: ['**/*.{js,css,html,png,svg,ico}'],
+      navigateFallback: '/',
+      globPatterns: ['**/*.{js,css,html,png,svg,ico,json}'],
       cleanupOutdatedCaches: true,
       runtimeCaching: [
         {
           urlPattern: /^https:\/\/authentik\.nucleoriofrio\.com\/.*/i,
-          handler: 'NetworkFirst',
+          handler: 'NetworkOnly',
           options: {
-            cacheName: 'authentik-api-cache',
-            expiration: {
-              maxEntries: 10,
-              maxAgeSeconds: 60 * 60 * 24 // 24 hours
-            },
-            cacheableResponse: {
-              statuses: [0, 200]
-            }
+            networkTimeoutSeconds: 10
           }
         }
       ]