3D Secure handling

frontend/src/App.tsx

@@ -26,6 +26,7 @@ import ForumPostDetail from './pages/ForumPostDetail';
 import CreateForumPost from './pages/CreateForumPost';
 import MyPosts from './pages/MyPosts';
 import EarningsDashboard from './pages/EarningsDashboard';
+import CompletePayment from './pages/CompletePayment';
 import FAQ from './pages/FAQ';
 import NotFound from './pages/NotFound';
 import PrivateRoute from './components/PrivateRoute';
@@ -126,6 +127,14 @@ const AppContent: React.FC = () => {
               </PrivateRoute>
             }
           />
+          <Route
+            path="/complete-payment/:rentalId"
+            element={
+              <PrivateRoute>
+                <CompletePayment />
+              </PrivateRoute>
+            }
+          />
           <Route
             path="/owning"
             element={