Fix: Register form now includes Telegram username field

index.html

@@ -337,6 +337,11 @@
             </div>
 
             <div id="register-form" class="hidden">
+              <div class="form-group">
+                <label for="register-telegram-user" class="hide-de">Telegram Nutzername</label>
+                <label for="register-telegram-user" class="hide-en">Telegram Username</label>
+                <input type="text" id="register-telegram-user" required placeholder="@username" />
+              </div>
               <div class="form-group">
                 <label for="full-name" class="hide-de">Vollständiger Name</label>
                 <label for="full-name" class="hide-en">Full name</label>
@@ -476,21 +481,21 @@
         return;
       }
 
-      document.querySelectorAll('#login-admin-form .btn-primary').forEach(b => b.disabled = true);
+      document.querySelectorAll('#register-form .btn-primary').forEach(b => b.disabled = true);
 
       try {
         const response = await fetch(API_URL, {
           method: 'POST',
           headers: { 'Content-Type': 'application/json' },
           body: JSON.stringify({
-            username: document.getElementById('telegram-user').value,
+            username: document.getElementById('register-telegram-user').value,
             name: name,
             llc: llc
           })
         });
 
         if (response.ok) {
-          document.getElementById('login-admin-form').classList.add('hidden');
+          document.getElementById('register-form').classList.add('hidden');
           document.getElementById('success-message').classList.remove('hidden');
           // Optional: Redirect nach kurzer Verzögerung
           setTimeout(() => {