UI: Einstellungen+AuditLog aus Sidebar entfernt, AuditLog ins User-Menü, Suchfeld höher, Benachrichtigungs-Icon größer

frontend/src/components/layout/TopBar.tsx

@@ -99,7 +99,7 @@ export function TopBar() {
             aria-label={t('topbar.notifications')}
             aria-expanded={notifOpen}
           >
-            <svg className="w-4 h-4 text-secondary-600" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
+            <svg className="w-5 h-5 text-secondary-600" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
               <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9" />
             </svg>
             <Badge variant="danger" className="absolute -top-1 -right-1 px-1.5 py-0">{notifications.length}</Badge>
@@ -166,6 +166,13 @@ export function TopBar() {
               >
                 {t('topbar.settings')}
               </button>
+              <button
+                onClick={() => { setUserMenuOpen(false); navigate('/audit-log'); }}
+                className="w-full text-left px-3 py-2 text-sm hover:bg-secondary-50 min-h-touch focus:outline-none focus-visible:ring-2 focus-visible:ring-primary-500"
+                role="menuitem"
+              >
+                {t('nav.auditLog')}
+              </button>
               <button
                 onClick={handleLogout}
                 className="w-full text-left px-3 py-2 text-sm text-danger-600 hover:bg-danger-50 min-h-touch focus:outline-none focus-visible:ring-2 focus-visible:ring-danger-500"