fix: DTO ã내 boolean 필드 -> Boolean 타입으로 변경

src/main/java/com/umc/networkingService/domain/album/dto/response/AlbumDetailResponse.java

@@ -1,5 +1,6 @@
 package com.umc.networkingService.domain.album.dto.response;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Builder;
 import lombok.Getter;
 
@@ -15,7 +16,7 @@ public class AlbumDetailResponse {
     private int hitCount;
     private int heartCount;
     private int commentCount;
-    private boolean isLiked;
-    private boolean isMine;
+    private Boolean isLiked;
+    private Boolean isMine;
     private String createdAt;
 }

src/main/java/com/umc/networkingService/domain/album/dto/response/AlbumHeartResponse.java

@@ -1,11 +1,12 @@
 package com.umc.networkingService.domain.album.dto.response;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 
 @Getter
 @AllArgsConstructor
 public class AlbumHeartResponse {
-    private boolean isChecked;
+    private Boolean isChecked;
     private int heartCnt;
 }