오디오 콘텐츠 테마 번역을 적용한다

오디오 콘텐츠 목록 응답에서 테마 문자열에 번역을 적용한다.

번역 데이터가 없을 때는 기존 원문을 유지한다.

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

@@ -920,12 +920,34 @@ class AudioContentService(
             contentId = audioContent.id!!
         )
 
+        /**
+         * themeStr 번역 처리
+         */
+        val themeStrTranslated = run {
+            val theme = audioContent.theme
+            if (theme?.id != null) {
+                val locale = langContext.lang.code
+                val translated = contentThemeTranslationRepository
+                    .findByContentThemeIdAndLocale(theme.id!!, locale)
+                val text = translated?.theme
+                if (!text.isNullOrBlank()) text else theme.theme
+            } else {
+                audioContent.theme!!.theme
+            }
+        }
+
         return GetAudioContentListItem(
             contentId = audioContent.id!!,
             coverImageUrl = "$coverImageHost/${audioContent.coverImage}",
-            title = audioContent.title,
+            title = run {
+                val translatedTitle = contentTranslationRepository
+                    .findByContentIdAndLocale(audioContent.id!!, langContext.lang.code)
+                    ?.renderedPayload
+                    ?.title
+                if (translatedTitle.isNullOrBlank()) audioContent.title else translatedTitle
+            },
             price = audioContent.price,
-            themeStr = audioContent.theme!!.theme,
+            themeStr = themeStrTranslated,
             duration = audioContent.duration,
             likeCount = likeCount,
             commentCount = commentCount,
@@ -1017,9 +1039,42 @@ class AudioContentService(
             items
         }
 
+        // theme 번역 적용: 번역 데이터가 있으면 번역, 없으면 원문 유지
+        val themeTranslatedList = run {
+            if (translatedContentList.isEmpty()) {
+                translatedContentList
+            } else {
+                val locale = langContext.lang.code
+
+                // 활성 테마 목록에서 한글 원문 -> ID 매핑 구성
+                val themesWithIds = themeQueryRepository.getActiveThemeWithIdsOfContent(
+                    isAdult = isAdult,
+                    isFree = false,
+                    isPointAvailableOnly = false,
+                    contentType = contentType
+                )
+                val idByKorean = themesWithIds.associate { it.theme to it.id }
+
+                val themeIds = idByKorean.values.distinct()
+                val translatedById = if (themeIds.isNotEmpty()) {
+                    contentThemeTranslationRepository
+                        .findByContentThemeIdInAndLocale(themeIds, locale)
+                        .associate { it.contentThemeId to it.theme }
+                } else {
+                    emptyMap()
+                }
+
+                translatedContentList.map { item ->
+                    val themeId = idByKorean[item.themeStr]
+                    val translated = if (themeId != null) translatedById[themeId] else null
+                    if (!translated.isNullOrBlank()) item.copy(themeStr = translated) else item
+                }
+            }
+        }
+
         return GetAudioContentListResponse(
             totalCount = totalCount,
-            items = translatedContentList
+            items = themeTranslatedList
         )
     }