카테고리 목록 조회에 언어별 번역 적용

LangContext에 따라 카테고리명을 번역해 반환한다. 번역본이 없으면

Papago API로 번역 후 CategoryTranslation에 저장하고 즉시 결과를

반환한다. 공개 API의 getCategoryList 응답이 요청 로케일을 반영한다.

src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/original/service/AdminOriginalWorkService.kt

@@ -10,6 +10,11 @@ import kr.co.vividnext.sodalive.chat.original.OriginalWorkTag
 import kr.co.vividnext.sodalive.chat.original.OriginalWorkTagMapping
 import kr.co.vividnext.sodalive.chat.original.repository.OriginalWorkTagRepository
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.content.LanguageDetectEvent
+import kr.co.vividnext.sodalive.content.LanguageDetectTargetType
+import kr.co.vividnext.sodalive.i18n.translation.LanguageTranslationEvent
+import kr.co.vividnext.sodalive.i18n.translation.LanguageTranslationTargetType
+import org.springframework.context.ApplicationEventPublisher
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.PageRequest
 import org.springframework.data.domain.Sort
@@ -24,7 +29,9 @@ import org.springframework.transaction.annotation.Transactional
 class AdminOriginalWorkService(
     private val originalWorkRepository: OriginalWorkRepository,
     private val chatCharacterRepository: ChatCharacterRepository,
-    private val originalWorkTagRepository: OriginalWorkTagRepository
+    private val originalWorkTagRepository: OriginalWorkTagRepository,
+
+    private val applicationEventPublisher: ApplicationEventPublisher
 ) {
 
     /** 원작 등록 (중복 제목 방지 포함) */
@@ -56,7 +63,44 @@ class AdminOriginalWorkService(
                 entity.tagMappings.add(OriginalWorkTagMapping(originalWork = entity, tag = tagEntity))
             }
         }
-        return originalWorkRepository.save(entity)
+
+        val originalWork = originalWorkRepository.save(entity)
+
+        /**
+         * 저장이 완료된 후
+         * originalWork의
+         *
+         * languageCode == null이면 언어 감지 이벤트 호출
+         * languageCode != null이면 번역 이벤트 호출
+         *
+         */
+        if (originalWork.languageCode == null) {
+            val papagoQuery = listOf(
+                originalWork.title,
+                originalWork.contentType,
+                originalWork.category,
+                originalWork.description
+            )
+                .filter { it.isNotBlank() }
+                .joinToString(" ")
+
+            applicationEventPublisher.publishEvent(
+                LanguageDetectEvent(
+                    id = originalWork.id!!,
+                    query = papagoQuery,
+                    targetType = LanguageDetectTargetType.ORIGINAL_WORK
+                )
+            )
+        } else {
+            applicationEventPublisher.publishEvent(
+                LanguageTranslationEvent(
+                    id = originalWork.id!!,
+                    targetType = LanguageTranslationTargetType.ORIGINAL_WORK
+                )
+            )
+        }
+
+        return originalWork
     }
 
     /** 원작 수정 (이미지 경로 포함 선택적 변경) */
@@ -107,6 +151,25 @@ class AdminOriginalWorkService(
         if (imagePath != null) {
             ow.imagePath = imagePath
         }
+
+        /**
+         * 번역 이벤트 호출
+         */
+        if (
+            request.title != null ||
+            request.contentType != null ||
+            request.category != null ||
+            request.description != null ||
+            request.tags != null
+        ) {
+            applicationEventPublisher.publishEvent(
+                LanguageTranslationEvent(
+                    id = ow.id!!,
+                    targetType = LanguageTranslationTargetType.ORIGINAL_WORK
+                )
+            )
+        }
+
         return originalWorkRepository.save(ow)
     }
 

src/main/kotlin/kr/co/vividnext/sodalive/api/home/HomeService.kt

@@ -348,12 +348,14 @@ class HomeService(
         val memberId = member?.id
         val isAdult = member?.auth != null && isAdultContentVisible
 
-        return seriesService.getDayOfWeekSeriesList(
+        val dayOfWeekSeriesList = seriesService.getDayOfWeekSeriesList(
             memberId = memberId,
             isAdult = isAdult,
             contentType = contentType,
             dayOfWeek = dayOfWeek
         )
+
+        return getTranslatedSeriesList(seriesList = dayOfWeekSeriesList)
     }
 
     fun getContentRankingBySort(

src/main/kotlin/kr/co/vividnext/sodalive/chat/original/OriginalWork.kt

@@ -33,6 +33,10 @@ class OriginalWork(
     @Column(columnDefinition = "TEXT")
     var description: String = "",
 
+    /** 언어 코드 */
+    @Column(nullable = true)
+    var languageCode: String? = null,
+
     /** 원천 원작 */
     @Column(nullable = true)
     var originalWork: String? = null,

src/main/kotlin/kr/co/vividnext/sodalive/chat/original/controller/OriginalWorkController.kt

@@ -3,12 +3,16 @@ package kr.co.vividnext.sodalive.chat.original.controller
 import kr.co.vividnext.sodalive.chat.character.ChatCharacter
 import kr.co.vividnext.sodalive.chat.character.dto.Character
 import kr.co.vividnext.sodalive.chat.character.image.CharacterImageRepository
+import kr.co.vividnext.sodalive.chat.character.translate.AiCharacterTranslationRepository
 import kr.co.vividnext.sodalive.chat.original.dto.OriginalWorkDetailResponse
 import kr.co.vividnext.sodalive.chat.original.dto.OriginalWorkListItemResponse
 import kr.co.vividnext.sodalive.chat.original.dto.OriginalWorkListResponse
 import kr.co.vividnext.sodalive.chat.original.service.OriginalWorkQueryService
+import kr.co.vividnext.sodalive.chat.original.service.OriginalWorkTranslationService
+import kr.co.vividnext.sodalive.chat.original.translation.OriginalWorkTranslationRepository
 import kr.co.vividnext.sodalive.common.ApiResponse
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.security.core.annotation.AuthenticationPrincipal
@@ -30,6 +34,12 @@ class OriginalWorkController(
     private val queryService: OriginalWorkQueryService,
     private val characterImageRepository: CharacterImageRepository,
 
+    private val langContext: LangContext,
+
+    private val originalWorkTranslationService: OriginalWorkTranslationService,
+    private val originalWorkTranslationRepository: OriginalWorkTranslationRepository,
+    private val aiCharacterTranslationRepository: AiCharacterTranslationRepository,
+
     @Value("\${cloud.aws.cloud-front.host}")
     private val imageHost: String
 ) {
@@ -51,7 +61,57 @@ class OriginalWorkController(
         val includeAdult = member?.auth != null
         val pageRes = queryService.listForAppPage(includeAdult, page, size)
         val content = pageRes.content.map { OriginalWorkListItemResponse.from(it, imageHost) }
-        ApiResponse.ok(OriginalWorkListResponse(totalCount = pageRes.totalElements, content = content))
+
+        /**
+         * 원작 목록의 제목과 콘텐츠 타입을 현재 언어(locale)에 맞춰 일괄 번역한다.
+         *
+         * 처리 절차:
+         * - 입력된 원작들의 originalWorkId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
+         *   originalWorkTranslationRepository 번역 데이터를 한 번에 조회한다.
+         * - 각 항목에 대해 번역된 제목과 콘텐츠 타입이 존재하고 비어있지 않으면 title과 contentType을 번역 값으로 교체한다.
+         * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
+         *
+         * 성능:
+         * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
+         */
+        val translatedContent = run {
+            if (content.isEmpty()) {
+                content
+            } else {
+                val ids = content.map { it.id }.toSet()
+                val locale = langContext.lang.code
+                val translations = originalWorkTranslationRepository
+                    .findByOriginalWorkIdInAndLocale(ids, locale)
+                    .associateBy { it.originalWorkId }
+
+                content.map { item ->
+                    val payload = translations[item.id]?.renderedPayload
+                    if (payload != null) {
+                        val newTitle = payload.title.trim()
+                        val newContentType = payload.contentType.trim()
+                        val hasTitle = newTitle.isNotEmpty()
+                        val hasContentType = newContentType.isNotEmpty()
+                        if (hasTitle || hasContentType) {
+                            item.copy(
+                                title = if (hasTitle) newTitle else item.title,
+                                contentType = if (hasContentType) newContentType else item.contentType
+                            )
+                        } else {
+                            item
+                        }
+                    } else {
+                        item
+                    }
+                }
+            }
+        }
+
+        ApiResponse.ok(
+            OriginalWorkListResponse(
+                totalCount = pageRes.totalElements,
+                content = translatedContent
+            )
+        )
     }
 
     /**
@@ -83,20 +143,56 @@ class OriginalWorkController(
             emptySet()
         }
 
-        ApiResponse.ok(
+        val translatedOriginal = originalWorkTranslationService.ensureTranslated(
-            OriginalWorkDetailResponse.from(
+            originalWork = ow,
-                ow,
+            targetLocale = langContext.lang.code
-                imageHost,
+        )
+
+        /**
+         * 캐릭터 리스트의 캐릭터 이름(name)과 캐릭터 한 줄 소개(description)를 현재 언어(locale)에 맞춰 일괄 번역한다.
+         *
+         * 처리 절차:
+         * - 입력된 콘텐츠들의 characterId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
+         *   AiCharacterTranslationRepository에서 번역 데이터를 한 번에 조회한다.
+         * - 각 항목에 대해 번역된 캐릭터 이름(name)과 캐릭터 한 줄 소개(description)가 존재하고 비어있지 않으면 번역 값으로 교체한다.
+         * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
+         *
+         * 성능:
+         * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
+         */
+        val translatedCharacters = run {
+            if (chars.isEmpty()) {
+                emptyList<Character>()
+            } else {
+                val ids = chars.mapNotNull { it.id }
+                val translations = aiCharacterTranslationRepository
+                    .findByCharacterIdInAndLocale(ids, langContext.lang.code)
+                    .associateBy { it.characterId }
+
                 chars.map<ChatCharacter, Character> {
                     val path = it.imagePath ?: "profile/default-profile.png"
+                    val tr = translations[it.id!!]?.renderedPayload
+                    val newName = tr?.name?.trim().orEmpty()
+                    val newDesc = tr?.description?.trim().orEmpty()
+                    val hasName = newName.isNotEmpty()
+                    val hasDesc = newDesc.isNotEmpty()
                     Character(
                         characterId = it.id!!,
-                        name = it.name,
+                        name = if (hasName) newName else it.name,
-                        description = it.description,
+                        description = if (hasDesc) newDesc else it.description,
                         imageUrl = "$imageHost/$path",
                         new = recentSet.contains(it.id)
                     )
                 }
+            }
+        }
+
+        ApiResponse.ok(
+            OriginalWorkDetailResponse.from(
+                ow,
+                imageHost,
+                translatedCharacters,
+                translated = translatedOriginal
             )
         )
     }

src/main/kotlin/kr/co/vividnext/sodalive/chat/original/dto/OriginalWorkAppDtos.kt

@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.chat.original.dto
 import com.fasterxml.jackson.annotation.JsonProperty
 import kr.co.vividnext.sodalive.chat.character.dto.Character
 import kr.co.vividnext.sodalive.chat.original.OriginalWork
+import kr.co.vividnext.sodalive.chat.original.translation.TranslatedOriginalWork
 
 /**
  * 앱용 원작 목록 아이템 응답 DTO
@@ -54,13 +55,15 @@ data class OriginalWorkDetailResponse(
     @JsonProperty("studio") val studio: String?,
     @JsonProperty("originalLinks") val originalLinks: List<String>,
     @JsonProperty("tags") val tags: List<String>,
-    @JsonProperty("characters") val characters: List<Character>
+    @JsonProperty("characters") val characters: List<Character>,
+    @JsonProperty("translated") val translated: TranslatedOriginalWork?
 ) {
     companion object {
         fun from(
             entity: OriginalWork,
             imageHost: String = "",
-            characters: List<Character>
+            characters: List<Character>,
+            translated: TranslatedOriginalWork?
         ): OriginalWorkDetailResponse {
             val fullImage = if (entity.imagePath != null && imageHost.isNotEmpty()) {
                 "$imageHost/${entity.imagePath}"
@@ -80,7 +83,8 @@ data class OriginalWorkDetailResponse(
                 studio = entity.studio,
                 originalLinks = entity.originalLinks.map { it.url },
                 tags = entity.tagMappings.map { it.tag.tag },
-                characters = characters
+                characters = characters,
+                translated = translated
             )
         }
     }

src/main/kotlin/kr/co/vividnext/sodalive/chat/original/service/OriginalWorkTranslationService.kt

@@ -0,0 +1,124 @@
+package kr.co.vividnext.sodalive.chat.original.service
+
+import kr.co.vividnext.sodalive.chat.original.OriginalWork
+import kr.co.vividnext.sodalive.chat.original.translation.OriginalWorkTranslation
+import kr.co.vividnext.sodalive.chat.original.translation.OriginalWorkTranslationPayload
+import kr.co.vividnext.sodalive.chat.original.translation.OriginalWorkTranslationRepository
+import kr.co.vividnext.sodalive.chat.original.translation.TranslatedOriginalWork
+import kr.co.vividnext.sodalive.i18n.translation.PapagoTranslationService
+import kr.co.vividnext.sodalive.i18n.translation.TranslateRequest
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+class OriginalWorkTranslationService(
+    private val translationRepository: OriginalWorkTranslationRepository,
+    private val papagoTranslationService: PapagoTranslationService
+) {
+
+    private val log = LoggerFactory.getLogger(javaClass)
+
+    /**
+     * 원작의 언어와 요청 언어가 다를 때 번역 데이터를 확보하고 반환한다.
+     * - 기존 번역이 있으면 그대로 사용
+     * - 없으면 파파고 번역 수행 후 저장
+     * - 실패/불필요 시 null 반환
+     */
+    @Transactional
+    fun ensureTranslated(originalWork: OriginalWork, targetLocale: String): TranslatedOriginalWork? {
+        val source = originalWork.languageCode?.lowercase()
+        val target = targetLocale.lowercase()
+
+        if (source.isNullOrBlank() || source == target) {
+            return null
+        }
+
+        // 기존 번역 조회
+        val existed = translationRepository.findByOriginalWorkIdAndLocale(originalWork.id!!, target)
+        val existedPayload = existed?.renderedPayload
+        if (existedPayload != null) {
+            val t = existedPayload.title.trim()
+            val ct = existedPayload.contentType.trim()
+            val cat = existedPayload.category.trim()
+            val desc = existedPayload.description.trim()
+            val tags = existedPayload.tags
+            val hasAny = t.isNotEmpty() || ct.isNotEmpty() || cat.isNotEmpty() || desc.isNotEmpty() || tags.isNotEmpty()
+            if (hasAny) {
+                return TranslatedOriginalWork(
+                    title = t,
+                    contentType = ct,
+                    category = cat,
+                    description = desc,
+                    tags = tags
+                )
+            }
+        }
+
+        // 파파고 번역 수행
+        return try {
+            val tags = originalWork.tagMappings.map { it.tag.tag }.filter { it.isNotBlank() }
+            val texts = buildList {
+                add(originalWork.title)
+                add(originalWork.contentType)
+                add(originalWork.category)
+                add(originalWork.description)
+                addAll(tags)
+            }
+
+            val response = papagoTranslationService.translate(
+                TranslateRequest(
+                    texts = texts,
+                    sourceLanguage = source,
+                    targetLanguage = target
+                )
+            )
+
+            val out = response.translatedText
+            if (out.isEmpty()) return null
+
+            // 앞 4개는 필드, 나머지는 태그
+            val title = out.getOrNull(0)?.trim().orEmpty()
+            val contentType = out.getOrNull(1)?.trim().orEmpty()
+            val category = out.getOrNull(2)?.trim().orEmpty()
+            val description = out.getOrNull(3)?.trim().orEmpty()
+            val translatedTags = if (out.size > 4) {
+                out.drop(4).map { it.trim() }.filter { it.isNotEmpty() }
+            } else {
+                emptyList()
+            }
+
+            val hasAny = title.isNotEmpty() || contentType.isNotEmpty() ||
+                category.isNotEmpty() || description.isNotEmpty() || translatedTags.isNotEmpty()
+            if (!hasAny) return null
+
+            val payload = OriginalWorkTranslationPayload(
+                title = title,
+                contentType = contentType,
+                category = category,
+                description = description,
+                tags = translatedTags
+            )
+
+            val entity = existed?.apply { this.renderedPayload = payload }
+                ?: OriginalWorkTranslation(
+                    originalWorkId = originalWork.id!!,
+                    locale = target,
+                    renderedPayload = payload
+                )
+
+            translationRepository.save(entity)
+
+            TranslatedOriginalWork(
+                title = title,
+                contentType = contentType,
+                category = category,
+                description = description,
+                tags = translatedTags
+            )
+        } catch (e: Exception) {
+            log.warn("Failed to translate OriginalWork(id={}) from {} to {}: {}", originalWork.id, source, target, e.message)
+            null
+        }
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/chat/original/translation/OriginalWorkTranslation.kt

@@ -0,0 +1,102 @@
+package kr.co.vividnext.sodalive.chat.original.translation
+
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import kr.co.vividnext.sodalive.common.BaseEntity
+import javax.persistence.AttributeConverter
+import javax.persistence.Column
+import javax.persistence.Convert
+import javax.persistence.Converter
+import javax.persistence.Entity
+import javax.persistence.Table
+import javax.persistence.UniqueConstraint
+
+@Entity
+@Table(
+    uniqueConstraints = [
+        UniqueConstraint(columnNames = ["original_work_id", "locale"])
+    ]
+)
+class OriginalWorkTranslation(
+    @Column(name = "original_work_id")
+    val originalWorkId: Long,
+    @Column(name = "locale")
+    val locale: String,
+
+    @Column(columnDefinition = "json")
+    @Convert(converter = OriginalWorkTranslationPayloadConverter::class)
+    var renderedPayload: OriginalWorkTranslationPayload
+) : BaseEntity()
+
+data class OriginalWorkTranslationPayload(
+    val title: String,
+    val contentType: String,
+    val category: String,
+    val description: String,
+    val tags: List<String>
+)
+
+data class TranslatedOriginalWork(
+    val title: String,
+    val contentType: String,
+    val category: String,
+    val description: String,
+    val tags: List<String>
+)
+
+@Converter(autoApply = false)
+class OriginalWorkTranslationPayloadConverter : AttributeConverter<OriginalWorkTranslationPayload, String> {
+
+    override fun convertToDatabaseColumn(attribute: OriginalWorkTranslationPayload?): String {
+        if (attribute == null) return "{}"
+        return objectMapper.writeValueAsString(attribute)
+    }
+
+    override fun convertToEntityAttribute(dbData: String?): OriginalWorkTranslationPayload {
+        if (dbData.isNullOrBlank()) {
+            return OriginalWorkTranslationPayload(
+                title = "",
+                contentType = "",
+                category = "",
+                description = "",
+                tags = emptyList()
+            )
+        }
+        return try {
+            val node = objectMapper.readTree(dbData)
+            val title = node.get("title")?.asText() ?: ""
+            val contentType = node.get("contentType")?.asText() ?: ""
+            val category = node.get("category")?.asText() ?: ""
+            val description = node.get("description")?.asText() ?: ""
+            val tagsNode = node.get("tags")
+            val tags: List<String> = when {
+                tagsNode == null || tagsNode.isNull -> emptyList()
+                tagsNode.isArray -> tagsNode.mapNotNull { it.asText(null) }.filter { it.isNotBlank() }
+                tagsNode.isTextual -> tagsNode.asText()
+                    .split(',')
+                    .map { it.trim() }
+                    .filter { it.isNotEmpty() }
+
+                else -> emptyList()
+            }
+            OriginalWorkTranslationPayload(
+                title = title,
+                contentType = contentType,
+                category = category,
+                description = description,
+                tags = tags
+            )
+        } catch (_: Exception) {
+            OriginalWorkTranslationPayload(
+                title = "",
+                contentType = "",
+                category = "",
+                description = "",
+                tags = emptyList()
+            )
+        }
+    }
+
+    companion object {
+        private val objectMapper = jacksonObjectMapper()
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/chat/original/translation/OriginalWorkTranslationRepository.kt

@@ -0,0 +1,9 @@
+package kr.co.vividnext.sodalive.chat.original.translation
+
+import org.springframework.data.jpa.repository.JpaRepository
+
+interface OriginalWorkTranslationRepository : JpaRepository<OriginalWorkTranslation, Long> {
+    fun findByOriginalWorkIdAndLocale(originalWorkId: Long, locale: String): OriginalWorkTranslation?
+
+    fun findByOriginalWorkIdInAndLocale(originalWorkIds: Set<Long>, locale: String): List<OriginalWorkTranslation>
+}

src/main/kotlin/kr/co/vividnext/sodalive/content/LanguageDetectEvent.kt

@@ -2,6 +2,8 @@ package kr.co.vividnext.sodalive.content
 
 import kr.co.vividnext.sodalive.chat.character.comment.CharacterCommentRepository
 import kr.co.vividnext.sodalive.chat.character.repository.ChatCharacterRepository
+import kr.co.vividnext.sodalive.chat.original.OriginalWorkRepository
+import kr.co.vividnext.sodalive.content.category.CategoryRepository
 import kr.co.vividnext.sodalive.content.comment.AudioContentCommentRepository
 import kr.co.vividnext.sodalive.content.series.ContentSeriesRepository
 import kr.co.vividnext.sodalive.explorer.profile.CreatorCheersRepository
@@ -32,7 +34,10 @@ enum class LanguageDetectTargetType {
     CHARACTER,
     CHARACTER_COMMENT,
     CREATOR_CHEERS,
-    SERIES
+    SERIES,
+    ORIGINAL_WORK,
+
+    CREATOR_CONTENT_CATEGORY
 }
 
 class LanguageDetectEvent(
@@ -53,6 +58,8 @@ class LanguageDetectListener(
     private val characterCommentRepository: CharacterCommentRepository,
     private val creatorCheersRepository: CreatorCheersRepository,
     private val seriesRepository: ContentSeriesRepository,
+    private val originalWorkRepository: OriginalWorkRepository,
+    private val categoryRepository: CategoryRepository,
 
     private val applicationEventPublisher: ApplicationEventPublisher,
 
@@ -85,6 +92,8 @@ class LanguageDetectListener(
             LanguageDetectTargetType.CHARACTER_COMMENT -> handleCharacterCommentLanguageDetect(event)
             LanguageDetectTargetType.CREATOR_CHEERS -> handleCreatorCheersLanguageDetect(event)
             LanguageDetectTargetType.SERIES -> handleSeriesLanguageDetect(event)
+            LanguageDetectTargetType.ORIGINAL_WORK -> handleOriginalWorkLanguageDetect(event)
+            LanguageDetectTargetType.CREATOR_CONTENT_CATEGORY -> handleCreatorContentCategoryLanguageDetect(event)
         }
     }
 
@@ -298,6 +307,64 @@ class LanguageDetectListener(
         )
     }
 
+    private fun handleOriginalWorkLanguageDetect(event: LanguageDetectEvent) {
+        val originalWorkId = event.id
+
+        val originalWork = originalWorkRepository.findByIdOrNull(originalWorkId)
+        if (originalWork == null) {
+            log.warn("[PapagoLanguageDetect] OriginalWork not found. originalWorkId={}", originalWorkId)
+            return
+        }
+
+        // 이미 언어 코드가 설정된 경우 호출하지 않음
+        if (!originalWork.languageCode.isNullOrBlank()) {
+            log.debug(
+                "[PapagoLanguageDetect] languageCode already set. Skip language detection. originalWorkId={}, languageCode={}",
+                originalWorkId,
+                originalWork.languageCode
+            )
+            return
+        }
+
+        val langCode = requestPapagoLanguageCode(event.query, originalWorkId) ?: return
+
+        originalWork.languageCode = langCode
+        originalWorkRepository.save(originalWork)
+
+        // 언어 감지가 완료된 후 언어 번역 이벤트 호출
+        applicationEventPublisher.publishEvent(
+            LanguageTranslationEvent(
+                id = originalWorkId,
+                targetType = LanguageTranslationTargetType.ORIGINAL_WORK
+            )
+        )
+
+        log.info(
+            "[PapagoLanguageDetect] languageCode updated from Papago. originalWorkId={}, langCode={}",
+            originalWorkId,
+            langCode
+        )
+    }
+
+    private fun handleCreatorContentCategoryLanguageDetect(event: LanguageDetectEvent) {
+        val categoryId = event.id
+
+        val category = categoryRepository.findByIdOrNull(categoryId) ?: return
+        if (!category.languageCode.isNullOrBlank()) return
+
+        val langCode = requestPapagoLanguageCode(event.query, categoryId) ?: return
+
+        category.languageCode = langCode
+        categoryRepository.save(category)
+
+        applicationEventPublisher.publishEvent(
+            LanguageTranslationEvent(
+                id = categoryId,
+                targetType = LanguageTranslationTargetType.CREATOR_CONTENT_CATEGORY
+            )
+        )
+    }
+
     private fun requestPapagoLanguageCode(query: String, targetIdForLog: Long): String? {
         return try {
             val headers = HttpHeaders().apply {

src/main/kotlin/kr/co/vividnext/sodalive/content/category/Category.kt

@@ -8,9 +8,10 @@ import javax.persistence.JoinColumn
 import javax.persistence.ManyToOne
 
 @Entity
-data class Category(
+class Category(
     var title: String,
     var orders: Int = 1,
+    var languageCode: String? = null,
     var isActive: Boolean = true
 ) : BaseEntity() {
     @ManyToOne(fetch = FetchType.LAZY)

src/main/kotlin/kr/co/vividnext/sodalive/content/category/CategoryService.kt

@@ -2,8 +2,16 @@ package kr.co.vividnext.sodalive.content.category
 
 import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.content.AudioContentRepository
+import kr.co.vividnext.sodalive.content.LanguageDetectEvent
+import kr.co.vividnext.sodalive.content.LanguageDetectTargetType
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.i18n.translation.LanguageTranslationEvent
+import kr.co.vividnext.sodalive.i18n.translation.LanguageTranslationTargetType
+import kr.co.vividnext.sodalive.i18n.translation.PapagoTranslationService
+import kr.co.vividnext.sodalive.i18n.translation.TranslateRequest
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
+import org.springframework.context.ApplicationEventPublisher
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 
@@ -12,7 +20,12 @@ class CategoryService(
     private val repository: CategoryRepository,
     private val contentRepository: AudioContentRepository,
     private val blockMemberRepository: BlockMemberRepository,
-    private val categoryContentRepository: CategoryContentRepository
+    private val categoryContentRepository: CategoryContentRepository,
+    private val categoryTranslationRepository: CategoryTranslationRepository,
+
+    private val langContext: LangContext,
+    private val applicationEventPublisher: ApplicationEventPublisher,
+    private val translationService: PapagoTranslationService
 ) {
     @Transactional
     fun createCategory(request: CreateCategoryRequest, member: Member) {
@@ -40,6 +53,14 @@ class CategoryService(
             )
             categoryContent.isActive = true
         }
+
+        applicationEventPublisher.publishEvent(
+            LanguageDetectEvent(
+                id = category.id!!,
+                query = request.title,
+                targetType = LanguageDetectTargetType.CREATOR_CONTENT_CATEGORY
+            )
+        )
     }
 
     @Transactional
@@ -50,6 +71,13 @@ class CategoryService(
         if (!request.title.isNullOrBlank()) {
             validateTitle(title = request.title)
             category.title = request.title
+
+            applicationEventPublisher.publishEvent(
+                LanguageTranslationEvent(
+                    id = request.categoryId,
+                    targetType = LanguageTranslationTargetType.CREATOR_CONTENT_CATEGORY
+                )
+            )
         }
 
         for (contentId in request.addContentIdList) {
@@ -97,11 +125,83 @@ class CategoryService(
         }
     }
 
+    @Transactional
     fun getCategoryList(creatorId: Long, memberId: Long): List<GetCategoryListResponse> {
         val isBlocked = blockMemberRepository.isBlocked(blockedMemberId = memberId, memberId = creatorId)
         if (isBlocked) throw SodaException("잘못된 접근입니다.")
 
-        return repository.findByCreatorId(creatorId = creatorId)
+        // 기본 카테고리 목록 조회 (원본 언어 기준)
+        val baseList = repository.findByCreatorId(creatorId = creatorId)
+        if (baseList.isEmpty()) return baseList
+
+        val locale = langContext.lang.code
+
+        // 원본 엔티티를 조회하여 languageCode 파악
+        val categoryIds = baseList.map { it.categoryId }
+        val entities = repository.findAllById(categoryIds)
+        val entityMap = entities.associateBy { it.id!! }
+
+        // 요청 로케일로 이미 저장된 번역 일괄 조회
+        val translations = categoryTranslationRepository
+            .findByCategoryIdInAndLocale(categoryIds, locale)
+            .associateBy { it.categoryId }
+
+        // 각 항목에 대해 번역 적용. 없으면 Papago로 번역 저장 후 적용
+        val result = mutableListOf<GetCategoryListResponse>()
+        for (item in baseList) {
+            val entity = entityMap[item.categoryId]
+            if (entity == null) {
+                result.add(item)
+                continue
+            }
+
+            val sourceLang = entity.languageCode
+            if (!sourceLang.isNullOrBlank() && sourceLang != locale) {
+                val existing = translations[item.categoryId]
+                if (existing != null && !existing.category.isNullOrBlank()) {
+                    result.add(GetCategoryListResponse(categoryId = item.categoryId, category = existing.category))
+                    continue
+                }
+
+                // 번역본이 없으면 Papago 번역 후 저장
+                val texts = listOf(entity.title)
+                val response = translationService.translate(
+                    request = TranslateRequest(
+                        texts = texts,
+                        sourceLanguage = sourceLang,
+                        targetLanguage = locale
+                    )
+                )
+
+                val translatedTexts = response.translatedText
+                if (translatedTexts.size == texts.size) {
+                    val translatedCategory = translatedTexts[0]
+
+                    val existingOne = categoryTranslationRepository
+                        .findByCategoryIdAndLocale(entity.id!!, locale)
+                    if (existingOne == null) {
+                        categoryTranslationRepository.save(
+                            CategoryTranslation(
+                                categoryId = entity.id!!,
+                                locale = locale,
+                                category = translatedCategory
+                            )
+                        )
+                    } else {
+                        existingOne.category = translatedCategory
+                        categoryTranslationRepository.save(existingOne)
+                    }
+
+                    result.add(GetCategoryListResponse(categoryId = item.categoryId, category = translatedCategory))
+                    continue
+                }
+            }
+
+            // 번역이 필요 없거나 실패한 경우 원본 사용
+            result.add(item)
+        }
+
+        return result
     }
 
     private fun validateTitle(title: String) {

src/main/kotlin/kr/co/vividnext/sodalive/content/category/CategoryTranslation.kt

@@ -0,0 +1,18 @@
+package kr.co.vividnext.sodalive.content.category
+
+import kr.co.vividnext.sodalive.common.BaseEntity
+import javax.persistence.Entity
+import javax.persistence.Table
+import javax.persistence.UniqueConstraint
+
+@Entity
+@Table(
+    uniqueConstraints = [
+        UniqueConstraint(columnNames = ["categoryId", "locale"])
+    ]
+)
+class CategoryTranslation(
+    val categoryId: Long,
+    val locale: String,
+    var category: String
+) : BaseEntity()

src/main/kotlin/kr/co/vividnext/sodalive/content/category/CategoryTranslationRepository.kt

@@ -0,0 +1,9 @@
+package kr.co.vividnext.sodalive.content.category
+
+import org.springframework.data.jpa.repository.JpaRepository
+
+interface CategoryTranslationRepository : JpaRepository<CategoryTranslation, Long> {
+    fun findByCategoryIdAndLocale(categoryId: Long, locale: String): CategoryTranslation?
+
+    fun findByCategoryIdInAndLocale(categoryIds: Collection<Long>, locale: String): List<CategoryTranslation>
+}

src/main/kotlin/kr/co/vividnext/sodalive/content/series/ContentSeriesService.kt

@@ -7,8 +7,11 @@ import kr.co.vividnext.sodalive.content.order.OrderType
 import kr.co.vividnext.sodalive.content.series.content.ContentSeriesContentRepository
 import kr.co.vividnext.sodalive.content.series.content.GetSeriesContentListResponse
 import kr.co.vividnext.sodalive.content.series.translation.SeriesGenreTranslationRepository
+import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslation
+import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationPayload
 import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationRepository
 import kr.co.vividnext.sodalive.content.series.translation.TranslatedSeries
+import kr.co.vividnext.sodalive.content.translation.ContentTranslationRepository
 import kr.co.vividnext.sodalive.creator.admin.content.series.Series
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesSortType
@@ -39,6 +42,7 @@ class ContentSeriesService(
 
     private val seriesTranslationRepository: SeriesTranslationRepository,
     private val seriesGenreTranslationRepository: SeriesGenreTranslationRepository,
+    private val contentTranslationRepository: ContentTranslationRepository,
     private val translationService: PapagoTranslationService,
 
     @Value("\${cloud.aws.cloud-front.host}")
@@ -56,11 +60,77 @@ class ContentSeriesService(
         limit: Long = 20
     ): List<GetSeriesListResponse.SeriesListItem> {
         val originalAudioDramaList = repository.getOriginalAudioDramaList(isAdult, contentType, orderByRandom, offset, limit)
-        return seriesToSeriesListItem(originalAudioDramaList, isAdult, contentType)
+        return getTranslatedSeriesList(seriesToSeriesListItem(originalAudioDramaList, isAdult, contentType))
     }
 
     fun getGenreList(memberId: Long, isAdult: Boolean, contentType: ContentType): List<GetSeriesGenreListResponse> {
-        return repository.getGenreList(memberId = memberId, isAdult = isAdult, contentType = contentType)
+        /**
+         * langContext.lang == Lang.EN || Lang.JA 일 때 번역된 콘텐츠 테마 반환
+         * 번역이 없으면 번역 API 호출 후 저장하고 반환
+         */
+        val genres = repository.getGenreList(memberId = memberId, isAdult = isAdult, contentType = contentType)
+
+        val currentLang = langContext.lang
+        if (currentLang == Lang.EN || currentLang == Lang.JA) {
+            val targetLocale = currentLang.code
+            val ids = genres.map { it.id }
+
+            // 기존 번역 일괄 조회
+            val existing = if (ids.isNotEmpty()) {
+                // 메서드가 없을 경우 개별 조회로 대체되지만, 성능을 위해 우선 시도
+                try {
+                    seriesGenreTranslationRepository
+                        .findBySeriesGenreIdInAndLocale(ids, targetLocale)
+                } catch (_: Exception) {
+                    // Spring Data 메서드 미존재 시 안전하게 개별 조회로 폴백
+                    ids.mapNotNull { id ->
+                        seriesGenreTranslationRepository.findBySeriesGenreIdAndLocale(id, targetLocale)
+                    }
+                }
+            } else {
+                emptyList()
+            }
+
+            val existingMap = existing.associateBy { it.seriesGenreId }.toMutableMap()
+
+            // 미번역 항목 수집
+            val untranslated = genres.filter { existingMap[it.id] == null }
+            if (untranslated.isNotEmpty()) {
+                val texts = untranslated.map { it.genre }
+                val response = translationService.translate(
+                    request = TranslateRequest(
+                        texts = texts,
+                        sourceLanguage = "ko",
+                        targetLanguage = targetLocale
+                    )
+                )
+
+                val translatedTexts = response.translatedText
+                val toSave = mutableListOf<kr.co.vividnext.sodalive.content.series.translation.SeriesGenreTranslation>()
+                untranslated.forEachIndexed { index, item ->
+                    val translated = translatedTexts.getOrNull(index) ?: item.genre
+                    toSave.add(
+                        kr.co.vividnext.sodalive.content.series.translation.SeriesGenreTranslation(
+                            seriesGenreId = item.id,
+                            locale = targetLocale,
+                            genre = translated
+                        )
+                    )
+                }
+                if (toSave.isNotEmpty()) {
+                    seriesGenreTranslationRepository.saveAll(toSave)
+                    toSave.forEach { saved -> existingMap[saved.seriesGenreId] = saved }
+                }
+            }
+
+            // 원래 순서 보존하여 결과 조립
+            return genres.map { g ->
+                val translated = existingMap[g.id]?.genre ?: g.genre
+                GetSeriesGenreListResponse(id = g.id, genre = translated)
+            }
+        }
+
+        return genres
     }
 
     fun getSeriesList(
@@ -126,7 +196,7 @@ class ContentSeriesService(
         ).filter { !blockMemberRepository.isBlocked(blockedMemberId = member.id!!, memberId = it.member!!.id!!) }
 
         val items = seriesToSeriesListItem(seriesList = rawItems, isAdult = isAuth, contentType = contentType)
-        return GetSeriesListResponse(totalCount, items)
+        return GetSeriesListResponse(totalCount, getTranslatedSeriesList(items))
     }
 
     @Transactional
@@ -232,14 +302,14 @@ class ContentSeriesService(
                             keywordList
                         }
 
-                        val payload = kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationPayload(
+                        val payload = SeriesTranslationPayload(
                             title = translatedTitle,
                             introduction = translatedIntroduction,
                             keywords = translatedKeywords
                         )
 
                         seriesTranslationRepository.save(
-                            kr.co.vividnext.sodalive.content.series.translation.SeriesTranslation(
+                            SeriesTranslation(
                                 seriesId = seriesId,
                                 locale = locale,
                                 renderedPayload = payload
@@ -354,7 +424,33 @@ class ContentSeriesService(
                 it
             }
 
-        return GetSeriesContentListResponse(totalCount, contentList)
+        /**
+         * 콘텐츠 리스트의 제목을 현재 언어(locale)에 맞춰 일괄 번역한다.
+         *
+         * 처리 절차:
+         * - 입력된 콘텐츠들의 contentId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
+         *   contentTranslationRepository에서 번역 데이터를 한 번에 조회한다.
+         * - 각 항목에 대해 번역된 제목이 존재하고 비어있지 않으면 title만 번역 값으로 교체한다.
+         * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
+         *
+         * 성능:
+         * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
+         */
+        val contentIds = contentList.map { it.contentId }
+        val translatedItems = if (contentIds.isNotEmpty()) {
+            val translations = contentTranslationRepository
+                .findByContentIdInAndLocale(contentIds = contentIds, locale = langContext.lang.code)
+                .associateBy { it.contentId }
+
+            contentList.map { item ->
+                val translatedTitle = translations[item.contentId]?.renderedPayload?.title
+                if (translatedTitle.isNullOrBlank()) item else item.copy(title = translatedTitle)
+            }
+        } else {
+            contentList
+        }
+
+        return GetSeriesContentListResponse(totalCount, translatedItems)
     }
 
     fun getRecommendSeriesList(
@@ -369,7 +465,13 @@ class ContentSeriesService(
             limit = 20
         ).filter { !blockMemberRepository.isBlocked(blockedMemberId = member.id!!, memberId = it.member!!.id!!) }
 
-        return seriesToSeriesListItem(seriesList = seriesList, isAdult = isAuth, contentType = contentType)
+        return getTranslatedSeriesList(
+            seriesToSeriesListItem(
+                seriesList = seriesList,
+                isAdult = isAuth,
+                contentType = contentType
+            )
+        )
     }
 
     fun fetchSeriesByCurationId(
@@ -384,7 +486,7 @@ class ContentSeriesService(
             isAdult = isAdult,
             contentType = contentType
         )
-        return seriesToSeriesListItem(seriesList, isAdult, contentType)
+        return getTranslatedSeriesList(seriesToSeriesListItem(seriesList, isAdult, contentType))
     }
 
     fun getDayOfWeekSeriesList(
@@ -414,7 +516,7 @@ class ContentSeriesService(
             seriesList
         }
 
-        return seriesToSeriesListItem(seriesList, isAdult, contentType)
+        return getTranslatedSeriesList(seriesToSeriesListItem(seriesList, isAdult, contentType))
     }
 
     private fun seriesToSeriesListItem(

src/main/kotlin/kr/co/vividnext/sodalive/content/series/translation/SeriesGenreTranslationRepository.kt

@@ -4,4 +4,6 @@ import org.springframework.data.jpa.repository.JpaRepository
 
 interface SeriesGenreTranslationRepository : JpaRepository<SeriesGenreTranslation, Long> {
     fun findBySeriesGenreIdAndLocale(seriesGenreId: Long, locale: String): SeriesGenreTranslation?
+
+    fun findBySeriesGenreIdInAndLocale(seriesGenreIds: List<Long>, locale: String): List<SeriesGenreTranslation>
 }

src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/content/CreatorAdminContentService.kt

@@ -10,9 +10,12 @@ import kr.co.vividnext.sodalive.content.ContentPriceChangeLogRepository
 import kr.co.vividnext.sodalive.content.hashtag.AudioContentHashTag
 import kr.co.vividnext.sodalive.content.hashtag.HashTag
 import kr.co.vividnext.sodalive.content.hashtag.HashTagRepository
+import kr.co.vividnext.sodalive.i18n.translation.LanguageTranslationEvent
+import kr.co.vividnext.sodalive.i18n.translation.LanguageTranslationTargetType
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.utils.generateFileName
 import org.springframework.beans.factory.annotation.Value
+import org.springframework.context.ApplicationEventPublisher
 import org.springframework.data.domain.Pageable
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
@@ -27,6 +30,8 @@ class CreatorAdminContentService(
     private val objectMapper: ObjectMapper,
     private val s3Uploader: S3Uploader,
 
+    private val applicationEventPublisher: ApplicationEventPublisher,
+
     @Value("\${cloud.aws.s3.bucket}")
     private val bucket: String,
 
@@ -194,6 +199,13 @@ class CreatorAdminContentService(
             }
 
             audioContent.audioContentHashTags.addAll(newAudioContentHashTagList)
+
+            applicationEventPublisher.publishEvent(
+                LanguageTranslationEvent(
+                    id = request.id,
+                    targetType = LanguageTranslationTargetType.CONTENT
+                )
+            )
         }
     }
 }

src/main/kotlin/kr/co/vividnext/sodalive/i18n/translation/LanguageTranslationEvent.kt

@@ -8,7 +8,14 @@ import kr.co.vividnext.sodalive.chat.character.translate.AiCharacterTranslationR
 import kr.co.vividnext.sodalive.chat.character.translate.AiCharacterTranslationRepository
 import kr.co.vividnext.sodalive.chat.character.translate.TranslatedAiCharacterBackground
 import kr.co.vividnext.sodalive.chat.character.translate.TranslatedAiCharacterPersonality
+import kr.co.vividnext.sodalive.chat.original.OriginalWorkRepository
+import kr.co.vividnext.sodalive.chat.original.translation.OriginalWorkTranslation
+import kr.co.vividnext.sodalive.chat.original.translation.OriginalWorkTranslationPayload
+import kr.co.vividnext.sodalive.chat.original.translation.OriginalWorkTranslationRepository
 import kr.co.vividnext.sodalive.content.AudioContentRepository
+import kr.co.vividnext.sodalive.content.category.CategoryRepository
+import kr.co.vividnext.sodalive.content.category.CategoryTranslation
+import kr.co.vividnext.sodalive.content.category.CategoryTranslationRepository
 import kr.co.vividnext.sodalive.content.series.translation.SeriesGenreTranslation
 import kr.co.vividnext.sodalive.content.series.translation.SeriesGenreTranslationRepository
 import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslation
@@ -35,7 +42,11 @@ enum class LanguageTranslationTargetType {
     CONTENT_THEME,
 
     SERIES,
-    SERIES_GENRE
+    SERIES_GENRE,
+
+    ORIGINAL_WORK,
+
+    CREATOR_CONTENT_CATEGORY
 }
 
 class LanguageTranslationEvent(
@@ -50,12 +61,17 @@ class LanguageTranslationListener(
     private val audioContentThemeRepository: AudioContentThemeQueryRepository,
     private val seriesRepository: AdminContentSeriesRepository,
     private val seriesGenreRepository: AdminContentSeriesGenreRepository,
+    private val originalWorkRepository: OriginalWorkRepository,
 
     private val contentTranslationRepository: ContentTranslationRepository,
     private val aiCharacterTranslationRepository: AiCharacterTranslationRepository,
     private val contentThemeTranslationRepository: ContentThemeTranslationRepository,
     private val seriesTranslationRepository: SeriesTranslationRepository,
     private val seriesGenreTranslationRepository: SeriesGenreTranslationRepository,
+    private val originalWorkTranslationRepository: OriginalWorkTranslationRepository,
+
+    private val categoryRepository: CategoryRepository,
+    private val categoryTranslationRepository: CategoryTranslationRepository,
 
     private val translationService: PapagoTranslationService
 ) {
@@ -69,6 +85,8 @@ class LanguageTranslationListener(
             LanguageTranslationTargetType.CONTENT_THEME -> handleContentThemeLanguageTranslation(event)
             LanguageTranslationTargetType.SERIES -> handleSeriesLanguageTranslation(event)
             LanguageTranslationTargetType.SERIES_GENRE -> handleSeriesGenreLanguageTranslation(event)
+            LanguageTranslationTargetType.ORIGINAL_WORK -> handleOriginalWorkLanguageTranslation(event)
+            LanguageTranslationTargetType.CREATOR_CONTENT_CATEGORY -> handleCreatorContentCategoryLanguageTranslation(event)
         }
     }
 
@@ -364,4 +382,125 @@ class LanguageTranslationListener(
             }
         }
     }
+
+    private fun handleOriginalWorkLanguageTranslation(event: LanguageTranslationEvent) {
+        val originalWork = originalWorkRepository.findByIdOrNull(event.id) ?: return
+        val languageCode = originalWork.languageCode
+        if (languageCode != null) return
+
+        /**
+         * handleSeriesLanguageTranslation 참조하여 원작 번역 구현
+         *
+         * originalWorkTranslationRepository
+         *
+         * 번역대상
+         * - title
+         * - contentType
+         * - category
+         * - description
+         * - tags
+         */
+        getTranslatableLanguageCodes(languageCode).forEach { locale ->
+            val tagsJoined = originalWork.tagMappings
+                .mapNotNull { it.tag.tag }
+                .joinToString(", ")
+
+            val texts = mutableListOf<String>()
+            texts.add(originalWork.title)
+            texts.add(originalWork.contentType)
+            texts.add(originalWork.category)
+            texts.add(originalWork.description)
+            texts.add(tagsJoined)
+
+            val sourceLanguage = originalWork.languageCode ?: "ko"
+
+            val response = translationService.translate(
+                request = TranslateRequest(
+                    texts = texts,
+                    sourceLanguage = sourceLanguage,
+                    targetLanguage = locale
+                )
+            )
+
+            val translatedTexts = response.translatedText
+            if (translatedTexts.size == texts.size) {
+                var index = 0
+                val translatedTitle = translatedTexts[index++]
+                val translatedContentType = translatedTexts[index++]
+                val translatedCategory = translatedTexts[index++]
+                val translatedDescription = translatedTexts[index++]
+                val translatedTagsJoined = translatedTexts[index]
+
+                val translatedTags = translatedTagsJoined
+                    .split(",")
+                    .map { it.trim() }
+                    .filter { it.isNotBlank() }
+
+                val payload = OriginalWorkTranslationPayload(
+                    title = translatedTitle,
+                    contentType = translatedContentType,
+                    category = translatedCategory,
+                    description = translatedDescription,
+                    tags = translatedTags
+                )
+
+                val existing = originalWorkTranslationRepository
+                    .findByOriginalWorkIdAndLocale(originalWork.id!!, locale)
+
+                if (existing == null) {
+                    originalWorkTranslationRepository.save(
+                        OriginalWorkTranslation(
+                            originalWorkId = originalWork.id!!,
+                            locale = locale,
+                            renderedPayload = payload
+                        )
+                    )
+                } else {
+                    existing.renderedPayload = payload
+                    originalWorkTranslationRepository.save(existing)
+                }
+            }
+        }
+    }
+
+    private fun handleCreatorContentCategoryLanguageTranslation(event: LanguageTranslationEvent) {
+        val category = categoryRepository.findByIdOrNull(event.id)
+
+        if (category == null || !category.isActive || category.languageCode.isNullOrBlank()) return
+
+        val sourceLanguage = category.languageCode ?: "ko"
+        getTranslatableLanguageCodes(sourceLanguage).forEach { locale ->
+            val texts = mutableListOf<String>()
+            texts.add(category.title)
+
+            val response = translationService.translate(
+                request = TranslateRequest(
+                    texts = texts,
+                    sourceLanguage = sourceLanguage,
+                    targetLanguage = locale
+                )
+            )
+
+            val translatedTexts = response.translatedText
+            if (translatedTexts.size == texts.size) {
+                val translatedCategory = translatedTexts[0]
+
+                val existing = categoryTranslationRepository
+                    .findByCategoryIdAndLocale(category.id!!, locale)
+
+                if (existing == null) {
+                    categoryTranslationRepository.save(
+                        CategoryTranslation(
+                            categoryId = category.id!!,
+                            locale = locale,
+                            category = translatedCategory
+                        )
+                    )
+                } else {
+                    existing.category = translatedCategory
+                    categoryTranslationRepository.save(existing)
+                }
+            }
+        }
+    }
 }

src/main/kotlin/kr/co/vividnext/sodalive/i18n/translation/PapagoTranslationService.kt

@@ -6,6 +6,7 @@ import org.springframework.http.HttpHeaders
 import org.springframework.http.MediaType
 import org.springframework.stereotype.Service
 import org.springframework.web.client.RestTemplate
+import org.springframework.web.client.postForEntity
 
 @Service
 class PapagoTranslationService(
@@ -46,10 +47,9 @@ class PapagoTranslationService(
 
                 val requestEntity = HttpEntity(body, headers)
 
-                val response = restTemplate.postForEntity(
+                val response = restTemplate.postForEntity<PapagoTranslationResponse>(
                     papagoTranslateUrl,
-                    requestEntity,
+                    requestEntity
-                    PapagoTranslationResponse::class.java
                 )
 
                 if (!response.statusCode.is2xxSuccessful) {