prepare to merge between dev-backend-tobuys

backend/src/main/java/com/example/todoapp/dto/StockDTO.java

@@ -17,8 +17,8 @@ import java.time.LocalDate;
 
 @Data
 public class StockDTO {
-    private int stock_id;
-    private int stuff_id;
+    private Long stock_id;
+    private Long stuff_id;
     private Long user_id;
     private int amount;
     private int price;

backend/src/main/java/com/example/todoapp/model/Stocks.java

@@ -39,7 +39,7 @@ public class Stocks {
      */
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private int stock_id ;
+    private Long stock_id ;
 
 
      /**
@@ -52,7 +52,7 @@ public class Stocks {
          referencedColumnName = "stuff_id",
          nullable = false
      )
-     private int stuff_id;
+     private Long stuff_id;
 
 
     /**