feat(character-comment): 캐릭터 댓글 조회시 결과에 언어 코드 추가

src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentDto.kt

@@ -21,7 +21,8 @@ data class CharacterCommentResponse(
     val memberNickname: String,
     val createdAt: Long,
     val replyCount: Int,
-    val comment: String
+    val comment: String,
+    val languageCode: String?
 )
 
 // 답글 Response 단건(목록 원소)

src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentService.kt

@@ -44,7 +44,8 @@ class CharacterCommentService(
             memberNickname = member.nickname,
             createdAt = toEpochMilli(entity.createdAt),
             replyCount = replyCountOverride ?: commentRepository.countByParent_IdAndIsActiveTrue(entity.id!!),
-            comment = entity.comment
+            comment = entity.comment,
+            languageCode = entity.languageCode
         )
     }