chore: complete update

resources/js/main.js

@@ -1 +1,48 @@
 import '../css/styles.css';
+
+import { initApp } from './core/init.js';
+
+// resources/js/app.js (dein Einstiegspunkt)
+import { registerSW } from 'virtual:pwa-register';
+
+const updateSW = registerSW({
+    onNeedRefresh() {
+        const reload = confirm('🔄 Neue Version verfügbar. Seite neu laden?');
+        if (reload) updateSW(true);
+    },
+    onOfflineReady() {
+        console.log('📦 Offline-Inhalte sind bereit.');
+    }
+});
+
+registerSW({
+    onRegistered(reg) {
+        console.log('Service Worker registriert:', reg);
+    },
+    onRegisterError(error) {
+        console.error('Service Worker Fehler:', error);
+    }
+});
+
+document.addEventListener("DOMContentLoaded", () => {
+    initApp();
+});
+
+function isHtmlAttributeSupported(elementName, attribute) {
+    const element = document.createElement(elementName);
+    return attribute in element;
+}
+
+
+let closedAttr = document.getElementById('my-dialog');
+if(! 'closedby' in closedAttr) {
+    alert('oh no');
+}
+
+/*
+if (isHtmlAttributeSupported('dialog', 'closedby')) {
+    alert('Attribut wird unterstützt!');
+} else {
+    alert('Nicht unterstützt!');
+}
+*/