fix(inventory): ERD 수정

추가 ERD 수정을 반영하였다.

src/main/java/com/space/server/core/inventory/domain/Inventory.java

@@ -21,20 +21,16 @@ public class Inventory {
   @JoinColumn(name = "item_id")
   private Item item;
 
-  private int point;
-
   private boolean isEquipped;
 
   @Builder
-  public Inventory(Item item, int point) {
+  public Inventory(Item item) {
     this.item = item;
-    this.point = point;
     this.isEquipped = false;
   }
 
   public void update(Inventory inventory) {
     this.item = inventory.getItem();
-    this.point = inventory.getPoint();
     this.isEquipped = inventory.isEquipped();
   }
 }

src/main/java/com/space/server/core/inventory/presentation/dto/response/InventoryResponse.java

@@ -7,14 +7,12 @@
 public record InventoryResponse(
     Long id,
     //User user,
-    Long itemId,
-    int point
+    Long itemId
 ) {
   public static InventoryResponse from(Inventory inventory) {
     return new InventoryResponse(
         inventory.getId(),
-        inventory.getItem().getId(),
-        inventory.getPoint()
+        inventory.getItem().getId()
     );
   }
 }