Fix sidebar toggle button by binding directly instead of delegating

Event delegation for toggle-sidebar was inside the isDashboard guard
so it could silently not register. Bind .lt-sidebar-toggle buttons
directly on DOMContentLoaded — simple and guaranteed to work.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

assets/js/dashboard.js

@@ -76,7 +76,7 @@ function initMobileSidebar() {
 
 }
 
-// Restore sidebar state on page load
+// Restore sidebar state and bind toggle button directly (no event delegation)
 document.addEventListener('DOMContentLoaded', function() {
     const savedState = localStorage.getItem('sidebarCollapsed');
     const sidebar = document.getElementById('lt-sidebar');
@@ -89,6 +89,15 @@ document.addEventListener('DOMContentLoaded', function() {
             btn.setAttribute('aria-expanded', 'false');
         }
     }
+
+    // Bind directly — bypass event delegation entirely so it works
+    // regardless of isDashboard guard or overflow/clipping issues
+    document.querySelectorAll('.lt-sidebar-toggle').forEach(function(btn) {
+        btn.addEventListener('click', function(e) {
+            e.stopPropagation();
+            toggleSidebar();
+        });
+    });
 });
 
 // Main initialization
@@ -226,10 +235,6 @@ document.addEventListener('DOMContentLoaded', function() {
             case 'open-advanced-search':
                 if (typeof openAdvancedSearch === 'function') openAdvancedSearch();
                 break;
-            // Sidebar toggle
-            case 'toggle-sidebar':
-                toggleSidebar();
-                break;
             // Mobile navigation
             case 'open-mobile-sidebar':
                 if (typeof openMobileSidebar === 'function') openMobileSidebar();