feat(creator-channel): 오디오 목록 제목 번역을 적용한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/audio/adapter/out/persistence/DefaultCreatorChannelAudioQueryRepository.kt

@@ -12,6 +12,7 @@ import kr.co.vividnext.sodalive.content.order.QOrder.order
 import kr.co.vividnext.sodalive.content.series.translation.QSeriesTranslation
 import kr.co.vividnext.sodalive.content.theme.QAudioContentTheme.audioContentTheme
 import kr.co.vividnext.sodalive.content.theme.translation.QContentThemeTranslation
+import kr.co.vividnext.sodalive.content.translation.QContentTranslation
 import kr.co.vividnext.sodalive.creator.admin.content.series.QSeries.series
 import kr.co.vividnext.sodalive.creator.admin.content.series.QSeriesContent.seriesContent
 import kr.co.vividnext.sodalive.member.QMember.member
@@ -173,10 +174,11 @@ class DefaultCreatorChannelAudioQueryRepository(
         val rows = findAudioContentRows(creatorId, viewerId, themeId, now, canViewAdultContent, sort, offset, limit)
         val contentIds = rows.map { itAudioId(it) }
         val firstContentId = firstAudioContentId(creatorId, now, canViewAdultContent)
+        val titlesByContentId = audioTitlesByContentIds(contentIds, locale)
         val seriesByContentId = audioSeriesByContentIds(contentIds, locale)
         val orderStatesByContentId = orderStatesByContentIds(viewerId, contentIds, now)
 
-        return rows.map { it.toAudioRecord(firstContentId, seriesByContentId, orderStatesByContentId) }
+        return rows.map { it.toAudioRecord(firstContentId, titlesByContentId, seriesByContentId, orderStatesByContentId) }
     }
 
     private fun findAudioContentRows(
@@ -307,6 +309,7 @@ class DefaultCreatorChannelAudioQueryRepository(
 
     private fun Tuple.toAudioRecord(
         firstContentId: Long?,
+        titlesByContentId: Map<Long, String>,
         seriesByContentId: Map<Long, AudioSeriesSummary>,
         orderStatesByContentId: Map<Long, AudioOrderState>
     ): CreatorChannelAudioContentRecord {
@@ -315,7 +318,7 @@ class DefaultCreatorChannelAudioQueryRepository(
         val orderState = orderStatesByContentId[audioContentId]
         return CreatorChannelAudioContentRecord(
             audioContentId = audioContentId,
-            title = get(audioContent.title)!!,
+            title = titlesByContentId[audioContentId] ?: get(audioContent.title)!!,
             duration = get(audioContent.duration),
             imagePath = get(audioContent.coverImage),
             price = get(audioContent.price)!!,
@@ -329,6 +332,24 @@ class DefaultCreatorChannelAudioQueryRepository(
         )
     }
 
+    private fun audioTitlesByContentIds(contentIds: List<Long>, locale: String): Map<Long, String> {
+        if (contentIds.isEmpty()) return emptyMap()
+        val contentTranslation = QContentTranslation("audioContentTranslation")
+        return queryFactory
+            .select(contentTranslation.contentId, contentTranslation.renderedPayload)
+            .from(contentTranslation)
+            .where(
+                contentTranslation.contentId.`in`(contentIds),
+                contentTranslation.locale.eq(locale)
+            )
+            .fetch()
+            .mapNotNull {
+                val title = it.get(contentTranslation.renderedPayload)?.title.takeUnless(String?::isNullOrBlank)
+                title?.let { translatedTitle -> it.get(contentTranslation.contentId)!! to translatedTitle }
+            }
+            .toMap()
+    }
+
     private fun firstAudioContentId(
         creatorId: Long,
         now: LocalDateTime,

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/audio/adapter/out/persistence/DefaultCreatorChannelAudioQueryRepositoryTest.kt

@@ -10,6 +10,8 @@ import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslation
 import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationPayload
 import kr.co.vividnext.sodalive.content.theme.AudioContentTheme
 import kr.co.vividnext.sodalive.content.theme.translation.ContentThemeTranslation
+import kr.co.vividnext.sodalive.content.translation.ContentTranslation
+import kr.co.vividnext.sodalive.content.translation.ContentTranslationPayload
 import kr.co.vividnext.sodalive.creator.admin.content.series.Series
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesContent
 import kr.co.vividnext.sodalive.member.Member
@@ -204,6 +206,51 @@ class DefaultCreatorChannelAudioQueryRepositoryTest @Autowired constructor(
         assertFalse(firstPage.any { it.audioContentId == oldSelected.id && it.isFirstContent })
     }
 
+    @Test
+    @DisplayName("목록 오디오 제목은 요청 locale 번역을 사용하고 공백 번역은 원문으로 fallback한다")
+    fun shouldFindAudioContentsWithTranslatedTitleFallback() {
+        val now = LocalDateTime.of(2026, 6, 19, 12, 0)
+        val viewer = saveMember("translated-title-viewer", MemberRole.USER)
+        val creator = saveMember("translated-title-creator", MemberRole.CREATOR)
+        val theme = saveTheme("수면")
+        val fallback = saveAudioContent(creator, now.minusDays(2), false, theme)
+        val translated = saveAudioContent(creator, now.minusDays(1), false, theme)
+        saveContentTranslation(translated, "en", "Translated Audio")
+        saveContentTranslation(translated, "ja", "翻訳オーディオ")
+        saveContentTranslation(fallback, "en", " ")
+        flushAndClear()
+
+        val enRecords = repository.findAudioContents(
+            creator.id!!,
+            viewer.id!!,
+            null,
+            now,
+            false,
+            ContentSort.LATEST,
+            "en",
+            offset = 0,
+            limit = 10
+        )
+        val jaRecords = repository.findAudioContents(
+            creator.id!!,
+            viewer.id!!,
+            null,
+            now,
+            false,
+            ContentSort.LATEST,
+            "ja",
+            offset = 0,
+            limit = 10
+        )
+
+        assertEquals(enRecords.map { it.audioContentId }, jaRecords.map { it.audioContentId })
+        assertEquals(listOf(translated.id, fallback.id), enRecords.map { it.audioContentId })
+        assertEquals("Translated Audio", enRecords.first().title)
+        assertEquals("翻訳オーディオ", jaRecords.first().title)
+        assertEquals(fallback.title, enRecords.last().title)
+        assertEquals(fallback.title, jaRecords.last().title)
+    }
+
     @Test
     @DisplayName("목록은 가격순과 인기순 can 매출 정렬을 적용한다")
     fun shouldSortAudioContentsByPriceAndPopularRevenue() {
@@ -391,6 +438,23 @@ class DefaultCreatorChannelAudioQueryRepositoryTest @Autowired constructor(
         return translation
     }
 
+    private fun saveContentTranslation(content: AudioContent, locale: String, title: String): ContentTranslation {
+        val translation = ContentTranslation(
+            contentId = content.id!!,
+            locale = locale,
+            renderedPayload = ContentTranslationPayload(title = title, detail = "", tags = "")
+        )
+        entityManager.persist(translation)
+        entityManager.flush()
+        val payload = "{\"title\":\"$title\",\"detail\":\"\",\"tags\":\"\"}"
+        entityManager.createNativeQuery(
+            "update content_translation set rendered_payload = '$payload' format json where id = :id"
+        )
+            .setParameter("id", translation.id)
+            .executeUpdate()
+        return translation
+    }
+
     private fun saveOrder(
         member: Member,
         creator: Member,