채팅방 서비스에 언어 컨텍스트에 따라 캐릭터명 번역을 적용하는 기능이 추가되어, 영어와 일본어 설정 시 번역된 캐릭터명이 표시되도록 수정

src/main/kotlin/kr/co/vividnext/sodalive/chat/room/service/ChatRoomService.kt

@@ -5,6 +5,7 @@ import kr.co.vividnext.sodalive.can.use.CanUsage
 import kr.co.vividnext.sodalive.chat.character.image.CharacterImage
 import kr.co.vividnext.sodalive.chat.character.image.CharacterImageService
 import kr.co.vividnext.sodalive.chat.character.service.ChatCharacterService
+import kr.co.vividnext.sodalive.chat.character.translate.AiCharacterTranslationRepository
 import kr.co.vividnext.sodalive.chat.quota.room.ChatRoomQuotaService
 import kr.co.vividnext.sodalive.chat.room.ChatMessage
 import kr.co.vividnext.sodalive.chat.room.ChatMessageType
@@ -26,6 +27,8 @@ import kr.co.vividnext.sodalive.chat.room.repository.ChatMessageRepository
 import kr.co.vividnext.sodalive.chat.room.repository.ChatParticipantRepository
 import kr.co.vividnext.sodalive.chat.room.repository.ChatRoomRepository
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import org.slf4j.LoggerFactory
 import org.springframework.beans.factory.annotation.Value
@@ -50,6 +53,8 @@ class ChatRoomService(
     private val messageRepository: ChatMessageRepository,
     private val characterService: ChatCharacterService,
     private val characterImageService: CharacterImageService,
+    private val langContext: LangContext,
+    private val aiCharacterTranslationRepository: AiCharacterTranslationRepository,
     private val canPaymentService: kr.co.vividnext.sodalive.can.payment.CanPaymentService,
     private val imageCloudFront: kr.co.vividnext.sodalive.aws.cloudfront.ImageContentCloudFront,
     private val chatQuotaService: kr.co.vividnext.sodalive.chat.quota.ChatQuotaService,
@@ -270,10 +275,22 @@ class ChatRoomService(
             val time = latest?.createdAt ?: q.lastActivityAt
             val timeLabel = formatRelativeTime(time)
 
+            // 언어 컨텍스트(en/ja)에서 번역본이 존재하면 번역된 캐릭터명을 사용
+            val localizedTitle = when (langContext.lang) {
+                Lang.EN, Lang.JA -> {
+                    val tr = aiCharacterTranslationRepository
+                        .findByCharacterIdAndLocale(q.characterId, langContext.lang.code)
+                    val name = tr?.renderedPayload?.name
+                    if (!name.isNullOrBlank()) name else q.title
+                }
+
+                else -> q.title
+            }
+
             ChatRoomListItemDto(
                 chatRoomId = q.chatRoomId,
                 characterId = q.characterId,
-                title = q.title,
+                title = localizedTitle,
                 imageUrl = imageUrl,
                 opponentType = opponentType,
                 lastMessagePreview = preview,