refactor: 🎨 remove /backup route

templates/admin.html

@@ -66,16 +66,6 @@
                     <i class="fas fa-chevron-right text-gray-400"></i>
                 </a>
                 {% endif %}
-                <a href="/backup" class="bg-gray-200 dark:bg-zinc-800 hover:bg-gray-300 dark:hover:bg-zinc-700 p-6 rounded-lg shadow-md flex items-center justify-between transition-colors">
-                    <div class="flex items-center space-x-4">
-                        <i class="fas fa-database text-3xl text-gray-600 dark:text-gray-400"></i>
-                        <div>
-                            <h3 class="text-lg font-bold">Backup & Restore</h3>
-                            <p class="text-sm text-gray-600 dark:text-gray-400">Database backup and restore</p>
-                        </div>
-                    </div>
-                    <i class="fas fa-chevron-right text-gray-400"></i>
-                </a>
             </div>
             
             <!-- Subnet Management Section -->