Merge development into main - Admin console, security fixes, sidebar toggle

# Conflicts:
#	engine/templates/layout.mustache
#	public/assets/js/app.js

public/assets/js/app.js

@@ -1,4 +1,94 @@
-// Basic CodePress CMS JavaScript
+// Main application JavaScript
+// This file contains general application functionality
+
+/**
+ * Toggle sidebar visibility (open/close)
+ */
+function toggleSidebar() {
+    const sidebar = document.getElementById('site-sidebar');
+    const contentCol = sidebar ? sidebar.nextElementSibling || sidebar.parentElement.querySelector('.content-column') : null;
+    const btn = document.querySelector('.sidebar-toggle-btn');
+    const icon = btn ? btn.querySelector('i') : null;
+
+    if (!sidebar) return;
+
+    sidebar.classList.toggle('sidebar-hidden');
+
+    // Adjust content column width, toggle icon, and update aria-expanded
+    if (sidebar.classList.contains('sidebar-hidden')) {
+        if (contentCol) {
+            contentCol.classList.remove('col-lg-9', 'col-md-8');
+            contentCol.classList.add('col-12');
+        }
+        if (icon) {
+            icon.classList.remove('bi-layout-sidebar-inset');
+            icon.classList.add('bi-layout-sidebar');
+        }
+        if (btn) {
+            btn.setAttribute('aria-expanded', 'false');
+        }
+        sessionStorage.setItem('sidebarHidden', 'true');
+    } else {
+        if (contentCol) {
+            contentCol.classList.remove('col-12');
+            contentCol.classList.add('col-lg-9', 'col-md-8');
+        }
+        if (icon) {
+            icon.classList.remove('bi-layout-sidebar');
+            icon.classList.add('bi-layout-sidebar-inset');
+        }
+        if (btn) {
+            btn.setAttribute('aria-expanded', 'true');
+        }
+        sessionStorage.setItem('sidebarHidden', 'false');
+    }
+}
+
+/**
+ * Restore sidebar state from sessionStorage on page load
+ */
+function restoreSidebarState() {
+    if (sessionStorage.getItem('sidebarHidden') === 'true') {
+        const sidebar = document.getElementById('site-sidebar');
+        if (sidebar) {
+            toggleSidebar();
+        }
+    }
+}
+
+// Initialize application when DOM is ready
 document.addEventListener('DOMContentLoaded', function() {
-    console.log('CodePress CMS loaded');
+    // Restore sidebar state
+    restoreSidebarState();
+
+    // Handle nested dropdowns for touch devices using event delegation
+    document.addEventListener('click', function(e) {
+        const toggle = e.target.closest('.dropdown-submenu .dropdown-toggle');
+
+        if (toggle) {
+            e.preventDefault();
+            e.stopPropagation();
+
+            const submenu = toggle.closest('.dropdown-submenu');
+            const dropdown = submenu.querySelector('.dropdown-menu');
+
+            // Close other submenus at the same level
+            const parent = submenu.parentElement;
+            parent.querySelectorAll('.dropdown-submenu').forEach(function(sibling) {
+                if (sibling !== submenu) {
+                    var siblingMenu = sibling.querySelector('.dropdown-menu');
+                    if (siblingMenu) siblingMenu.classList.remove('show');
+                }
+            });
+
+            // Toggle current submenu
+            if (dropdown) dropdown.classList.toggle('show');
+            return;
+        }
+
+        // Close all open submenus when clicking outside
+        document.querySelectorAll('.dropdown-submenu .dropdown-menu.show').forEach(function(menu) {
+            menu.classList.remove('show');
+        });
+    });
 });