微修正

src/pages/dashboard/contract/detail.tsx

@@ -56,7 +56,7 @@ export default function ContractDetail() {
     if (seasonTicketContract) {
       const { vehicle_no } = seasonTicketContract;
       if (vehicle_no !== "") {
-        return "";
+        return vehicle_no;
       }
       return "未登録";
     }