holds order of stock list, after item updated

backend/src/main/java/com/example/todoapp/repository/StocksRepository.java

@@ -35,7 +35,7 @@ public interface StocksRepository extends JpaRepository<Stocks, Long> {
      * @param userId 検索するユーザーID
      * @return 在庫リスト
      */
-    List<Stocks> findStocksByUserId(Long userId);
+    List<Stocks> findStocksByUserIdOrderByStockIdAsc(Long userId);
 
     /**
      * 在庫情報を更新する

backend/src/main/java/com/example/todoapp/service/StocksService.java

@@ -50,7 +50,7 @@ public class StocksService {
      */
     public List<Stocks> getALLStocksByUser(String username) {
         User user = getUserByUsername(username);
-        return stocksRepository.findStocksByUserId(user.getId());
+        return stocksRepository.findStocksByUserIdOrderByStockIdAsc(user.getId());
     }
 
     /**