Refactor code structure and remove redundant changes

src-old/pages/AdminUsers.tsx

@@ -0,0 +1,63 @@
+import { useAdminGuard } from '@/hooks/useAdminGuard';
+import { MFAGuard } from '@/components/auth/MFAGuard';
+import { AdminLayout } from '@/components/layout/AdminLayout';
+import { UserManagement } from '@/components/admin/UserManagement';
+import { Skeleton } from '@/components/ui/skeleton';
+import { Card, CardContent } from '@/components/ui/card';
+import { useDocumentTitle } from '@/hooks/useDocumentTitle';
+
+export default function AdminUsers() {
+  useDocumentTitle('User Management - Admin');
+  const { isLoading, isAuthorized, needsMFA } = useAdminGuard();
+
+  if (isLoading) {
+    return (
+      <AdminLayout>
+        <div className="space-y-6">
+          <div>
+            <h1 className="text-2xl font-bold tracking-tight">User Management</h1>
+            <p className="text-muted-foreground mt-1">
+              Manage user profiles, roles, and permissions
+            </p>
+          </div>
+
+          <Card>
+            <CardContent className="p-6 space-y-4">
+              {[1, 2, 3, 4].map((i) => (
+                <div key={i} className="flex items-center gap-4 p-4 border rounded-lg">
+                  <Skeleton className="h-10 w-10 rounded-full" />
+                  <div className="flex-1 space-y-2">
+                    <Skeleton className="h-4 w-48" />
+                    <Skeleton className="h-3 w-32" />
+                  </div>
+                  <Skeleton className="h-8 w-24" />
+                </div>
+              ))}
+            </CardContent>
+          </Card>
+        </div>
+      </AdminLayout>
+    );
+  }
+
+  if (!isAuthorized) {
+    return null;
+  }
+
+  return (
+    <AdminLayout>
+      <MFAGuard>
+        <div className="space-y-6">
+          <div>
+            <h1 className="text-2xl font-bold tracking-tight">User Management</h1>
+            <p className="text-muted-foreground mt-1">
+              Manage user profiles, roles, and permissions
+            </p>
+          </div>
+
+          <UserManagement />
+        </div>
+      </MFAGuard>
+    </AdminLayout>
+  );
+}