fix: Wrap ternary branch in fragment to fix JSX syntax error

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

frontend/src/app/admin/vehicle-requests/page.tsx

@@ -351,6 +351,7 @@ export default function AdminVehicleRequestsPage() {
                     No vehicles added yet
                   </div>
                 ) : (
+                  <>
                   <div className="space-y-2 max-h-[300px] overflow-y-auto">
                     {selectedRequest.approved_vehicles.map((vehicle) => {
                       const hasPdf = vehicle.car_data.has_pdf === true;
@@ -472,6 +473,7 @@ export default function AdminVehicleRequestsPage() {
                       </div>
                     </div>
                   )}
+                  </>
                 )}
               </div>
             </div>