feat(creatorname): v2 조회와 채팅에 언어별 이름을 적용한다

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/all/adapter/in/web/MainContentAllControllerTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.content.all.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
 import kr.co.vividnext.sodalive.configs.SecurityConfig
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.jwt.JwtAccessDeniedHandler
@@ -14,6 +15,7 @@ import kr.co.vividnext.sodalive.v2.api.content.all.application.MainContentAllFac
 import kr.co.vividnext.sodalive.v2.api.content.all.dto.MainContentAllTabResponse
 import kr.co.vividnext.sodalive.v2.common.domain.ContentSort
 import kr.co.vividnext.sodalive.v2.content.all.domain.MainContentAllType
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -41,6 +43,11 @@ class MainContentAllControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -57,7 +64,7 @@ class MainContentAllControllerTest @Autowired constructor(
     @DisplayName("전체 탭 조회는 비회원에게 200 OK와 기본 응답을 반환한다")
     fun shouldAllowAnonymousAndUseDefaultType() {
         Mockito.doReturn(response(MainContentAllType.AUDIO, ContentSort.LATEST)).`when`(facade)
-            .getContents(null, null, null, null, null, null)
+            .getContents(null, null, null, null, null, null, Lang.KO)
 
         mockMvc.perform(get("/api/v2/audio/contents"))
             .andExpect(status().isOk)
@@ -76,7 +83,7 @@ class MainContentAllControllerTest @Autowired constructor(
             role = MemberRole.USER
         ).apply { id = 10L }
         Mockito.doReturn(response(MainContentAllType.SERIES, ContentSort.POPULAR)).`when`(facade)
-            .getContents("SERIES", "POPULAR", "MON", 1, 30, member)
+            .getContents("SERIES", "POPULAR", "MON", 1, 30, member, Lang.KO)
 
         mockMvc.perform(
             get("/api/v2/audio/contents")
@@ -92,7 +99,7 @@ class MainContentAllControllerTest @Autowired constructor(
             .andExpect(jsonPath("$.data.type").value("SERIES"))
             .andExpect(jsonPath("$.data.sort").value("POPULAR"))
 
-        Mockito.verify(facade).getContents("SERIES", "POPULAR", "MON", 1, 30, member)
+        Mockito.verify(facade).getContents("SERIES", "POPULAR", "MON", 1, 30, member, Lang.KO)
     }
 
     private fun response(type: MainContentAllType, sort: ContentSort): MainContentAllTabResponse {

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/all/adapter/in/web/MainContentAllEndToEndTest.kt

@@ -10,12 +10,16 @@ import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDays
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.support.EmbeddedRedisInitializer
+import org.hamcrest.Matchers.contains
 import org.hamcrest.Matchers.nullValue
+import org.hibernate.SessionFactory
+import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc
 import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.jdbc.core.JdbcTemplate
 import org.springframework.test.annotation.DirtiesContext
 import org.springframework.test.context.ContextConfiguration
 import org.springframework.test.web.servlet.MockMvc
@@ -30,6 +34,7 @@ import javax.persistence.EntityManager
     properties = [
         "cloud.aws.cloud-front.host=https://cdn.test",
         "spring.cache.type=none",
+        "spring.jpa.properties.hibernate.generate_statistics=true",
         "spring.datasource.url=jdbc:h2:mem:main-content-all-e2e;MODE=MySQL;NON_KEYWORDS=VALUE;DB_CLOSE_ON_EXIT=FALSE"
     ]
 )
@@ -39,8 +44,107 @@ import javax.persistence.EntityManager
 class MainContentAllEndToEndTest @Autowired constructor(
     private val mockMvc: MockMvc,
     private val entityManager: EntityManager,
-    private val transactionTemplate: TransactionTemplate
+    private val transactionTemplate: TransactionTemplate,
+    private val jdbcTemplate: JdbcTemplate
 ) {
+    @Test
+    @DisplayName("전체 콘텐츠 API는 JA 별칭을 우선하고 KO 별칭 미등록 시 일본어 원본을, 별칭 없는 작성자는 현재 원본을 반환한다")
+    fun shouldSelectLocalizedCreatorNamesWithoutChangingAudioTitles() {
+        transactionTemplate.executeWithoutResult { saveMember("main-all-resource-id-control", MemberRole.USER) }
+        val localized = createAudioFixture("main-all-localized")
+        val fallback = createAudioFixture("main-all-fallback")
+        transactionTemplate.executeWithoutResult {
+            jdbcTemplate.update(
+                """
+                insert into creator_localized_name (member_id, lang, display_name, is_active, created_at, updated_at)
+                values (?, 'JA', ?, true, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+                """.trimIndent(),
+                localized.creatorId,
+                "日本語クリエイター"
+            )
+            entityManager.find(Member::class.java, localized.creatorId).nickname = "改名さくら"
+        }
+
+        mockMvc.perform(get("/api/v2/audio/contents").param("type", "AUDIO").header("Accept-Language", "ko"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.totalCount").value(2))
+            .andExpect(
+                jsonPath("$.data.audios[?(@.audioContentId == ${localized.audioContentId})].creatorNickname")
+                    .value(contains("改名さくら"))
+            )
+
+        val statistics = entityManager.entityManagerFactory.unwrap(SessionFactory::class.java).statistics
+        statistics.clear()
+        mockMvc.perform(get("/api/v2/audio/contents").param("type", "AUDIO").header("Accept-Language", "ja"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.totalCount").value(2))
+            .andExpect(
+                jsonPath("$.data.audios[?(@.audioContentId == ${localized.audioContentId})].creatorNickname")
+                    .value(contains("日本語クリエイター"))
+            )
+            .andExpect(
+                jsonPath("$.data.audios[?(@.audioContentId == ${fallback.audioContentId})].creatorNickname")
+                    .value(contains("main-all-fallback-creator"))
+            )
+            .andExpect(
+                jsonPath("$.data.audios[?(@.audioContentId == ${localized.audioContentId})].title")
+                    .value(contains("main-all-localized-audio"))
+            )
+            .andExpect(jsonPath("$.data.audios[0].creatorId").doesNotExist())
+            .andExpect(jsonPath("$.data.audios[0].creatorMemberId").doesNotExist())
+
+        val aliasQueries = statistics.queries.filter {
+            Regex("""(?is)^select\s+\w+\.memberId,\s*\w+\.displayName\s+from\s+CreatorLocalizedNameEntity\b""")
+                .containsMatchIn(it)
+        }
+        val aliasQueryCount = aliasQueries.sumOf { statistics.getQueryStatistics(it).executionCount }
+        assertEquals(
+            0L,
+            aliasQueryCount,
+            "Standalone alias SELECTs (total queries=${statistics.queryExecutionCount}): $aliasQueries"
+        )
+    }
+
+    @Test
+    @DisplayName("영어 활성 이름도 JOIN으로 읽으며 비활성 이름은 원본으로 fallback하고 인기순 집계를 유지한다")
+    fun shouldReadActiveEnglishCreatorNameAndFallbackWhenInactive() {
+        val active = createAudioFixture("main-all-english-active")
+        val inactive = createAudioFixture("main-all-english-inactive")
+        transactionTemplate.executeWithoutResult {
+            listOf(Triple(active.creatorId, "English creator", true), Triple(inactive.creatorId, "Inactive name", false))
+                .forEach { (creatorId, name, isActive) ->
+                    jdbcTemplate.update(
+                        """
+                        insert into creator_localized_name (member_id, lang, display_name, is_active, created_at, updated_at)
+                        values (?, 'EN', ?, ?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+                        """.trimIndent(),
+                        creatorId,
+                        name,
+                        isActive
+                    )
+                }
+        }
+
+        mockMvc.perform(
+            get("/api/v2/audio/contents").param("type", "AUDIO").param("sort", "POPULAR").header("Accept-Language", "en")
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.totalCount").value(2))
+            .andExpect(jsonPath("$.data.audios.length()").value(2))
+            .andExpect(
+                jsonPath("$.data.audios[?(@.audioContentId == ${active.audioContentId})].creatorNickname")
+                    .value(contains("English creator"))
+            )
+            .andExpect(
+                jsonPath("$.data.audios[?(@.audioContentId == ${inactive.audioContentId})].creatorNickname")
+                    .value(contains("main-all-english-inactive-creator"))
+            )
+            .andExpect(
+                jsonPath("$.data.audios[?(@.audioContentId == ${active.audioContentId})].title")
+                    .value(contains("main-all-english-active-audio"))
+            )
+    }
+
     @Test
     @DisplayName("전체 탭 AUDIO API는 controller-service-repository를 거쳐 오디오 응답과 빈 series를 반환한다")
     fun shouldReturnAudioContentsThroughControllerServiceAndRepository() {
@@ -196,7 +300,7 @@ class MainContentAllEndToEndTest @Autowired constructor(
             entityManager.flush()
             entityManager.clear()
 
-            AudioFixture(audioContentId = audio.id!!)
+            AudioFixture(audioContentId = audio.id!!, creatorId = creator.id!!)
         }!!
     }
 
@@ -308,7 +412,8 @@ class MainContentAllEndToEndTest @Autowired constructor(
     }
 
     private data class AudioFixture(
-        val audioContentId: Long
+        val audioContentId: Long,
+        val creatorId: Long
     )
 
     private data class SeriesFixture(

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/all/application/MainContentAllFacadeTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.api.content.all.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.common.domain.ContentSort
@@ -36,7 +37,7 @@ class MainContentAllFacadeTest {
                 page = MainContentPage(1, 30),
                 hasNext = false
             )
-        ).`when`(queryService).getContents("FREE", "PRICE_LOW", "MON", 1, 30, member)
+        ).`when`(queryService).getContents("FREE", "PRICE_LOW", "MON", 1, 30, member, Lang.KO)
 
         val response = facade.getContents(
             type = "FREE",
@@ -44,10 +45,11 @@ class MainContentAllFacadeTest {
             dayOfWeek = "MON",
             page = 1,
             size = 30,
-            member = member
+            member = member,
+            lang = Lang.KO
         )
 
-        Mockito.verify(queryService).getContents("FREE", "PRICE_LOW", "MON", 1, 30, member)
+        Mockito.verify(queryService).getContents("FREE", "PRICE_LOW", "MON", 1, 30, member, Lang.KO)
         assertEquals(MainContentAllType.FREE, response.type)
         assertEquals(ContentSort.PRICE_LOW, response.sort)
     }

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/all/dto/MainContentAllTabResponseTest.kt

@@ -27,6 +27,7 @@ class MainContentAllTabResponseTest {
                 audios = emptyList(),
                 series = listOf(
                     MainContentAllSeries(
+                        creatorMemberId = 100L,
                         seriesId = 10L,
                         title = "시리즈",
                         coverImageUrl = "https://cdn/series.jpg",
@@ -58,6 +59,7 @@ class MainContentAllTabResponseTest {
                 totalCount = 1,
                 audios = listOf(
                     MainContentAllAudio(
+                        creatorMemberId = 100L,
                         audioContentId = 1L,
                         title = "audio",
                         imageUrl = "https://cdn/audio.jpg",
@@ -69,6 +71,7 @@ class MainContentAllTabResponseTest {
                         creatorNickname = "creator"
                     ),
                     MainContentAllAudio(
+                        creatorMemberId = 100L,
                         audioContentId = 2L,
                         title = "free audio",
                         imageUrl = "https://cdn/free-audio.jpg",
@@ -80,6 +83,7 @@ class MainContentAllTabResponseTest {
                         creatorNickname = "creator"
                     ),
                     MainContentAllAudio(
+                        creatorMemberId = 100L,
                         audioContentId = 3L,
                         title = "point unavailable audio",
                         imageUrl = "https://cdn/point-unavailable-audio.jpg",

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/overview/adapter/in/web/ContentOverviewControllerTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.content.overview.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
 import kr.co.vividnext.sodalive.configs.SecurityConfig
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.jwt.JwtAccessDeniedHandler
@@ -13,6 +14,7 @@ import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.api.content.overview.application.ContentOverviewFacade
 import kr.co.vividnext.sodalive.v2.api.content.overview.dto.ContentOverviewPageResponse
 import kr.co.vividnext.sodalive.v2.api.content.overview.dto.ContentOverviewType
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -41,6 +43,11 @@ class ContentOverviewControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -62,7 +69,7 @@ class ContentOverviewControllerTest @Autowired constructor(
     fun shouldPassAuthenticatedMemberAndQueryParameters() {
         val member = member(id = 10L)
         Mockito.doReturn(emptyResponse(ContentOverviewType.FIRST_AUDIO_CONTENT)).`when`(facade)
-            .getContents(eqValue("FIRST_AUDIO_CONTENT"), eqValue(1), eqValue(30), eqValue(member))
+            .getContents(eqValue("FIRST_AUDIO_CONTENT"), eqValue(1), eqValue(30), eqValue(member), eqValue(Lang.KO))
 
         mockMvc.perform(
             get("/api/v2/contents")
@@ -75,7 +82,8 @@ class ContentOverviewControllerTest @Autowired constructor(
             .andExpect(jsonPath("$.success").value(true))
             .andExpect(jsonPath("$.data.type").value("FIRST_AUDIO_CONTENT"))
 
-        Mockito.verify(facade).getContents(eqValue("FIRST_AUDIO_CONTENT"), eqValue(1), eqValue(30), eqValue(member))
+        Mockito.verify(facade)
+            .getContents(eqValue("FIRST_AUDIO_CONTENT"), eqValue(1), eqValue(30), eqValue(member), eqValue(Lang.KO))
     }
 
     private fun <T> eqValue(value: T): T {

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/overview/application/ContentOverviewFacadeTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.api.content.overview.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
@@ -31,9 +32,9 @@ class ContentOverviewFacadeTest {
     fun shouldReturnNewAndHotPage() {
         val member = member(id = 10L)
         Mockito.doReturn((1L..21L).map { audioCard(it) }).`when`(audioRecommendationQueryService)
-            .findNewAndHotAudios(member, offset = 0L, limit = 21)
+            .findNewAndHotAudios(member, offset = 0L, limit = 21, lang = Lang.KO)
 
-        val response = facade.getContents("NEW_AND_HOT_AUDIO", page = 0, size = 20, member = member)
+        val response = facade.getContents("NEW_AND_HOT_AUDIO", page = 0, size = 20, member = member, lang = Lang.KO)
 
         assertEquals(ContentOverviewType.NEW_AND_HOT_AUDIO, response.type)
         assertEquals((1L..20L).toList(), response.items.map { it.contentId })
@@ -54,10 +55,11 @@ class ContentOverviewFacadeTest {
                 eqValue(20L),
                 eqValue(21),
                 eqValue(member.id),
-                eqValue(true)
+                eqValue(true),
+                eqValue(Lang.KO)
             )
 
-        val response = facade.getContents("FIRST_AUDIO_CONTENT", page = 1, size = 20, member = member)
+        val response = facade.getContents("FIRST_AUDIO_CONTENT", page = 1, size = 20, member = member, lang = Lang.KO)
 
         assertEquals(ContentOverviewType.FIRST_AUDIO_CONTENT, response.type)
         assertEquals(listOf(1L, 2L), response.items.map { it.contentId })
@@ -79,6 +81,7 @@ class ContentOverviewFacadeTest {
 
     private fun audioCard(id: Long): AudioCard {
         return AudioCard(
+            creatorMemberId = id + 100L,
             audioContentId = id,
             title = "audio$id",
             duration = "00:01",

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/overview/dto/ContentOverviewPageResponseTest.kt

@@ -120,6 +120,7 @@ class ContentOverviewPageResponseTest {
 
     private fun audioCard(price: Int, isPointAvailable: Boolean): AudioCard {
         return AudioCard(
+            creatorMemberId = 10L,
             audioContentId = price.toLong() + 1,
             title = "audio",
             duration = "00:01",

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/ranking/application/AudioRankingFacadeTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.api.content.ranking.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.v2.content.ranking.application.AudioRankingQueryService
 import kr.co.vividnext.sodalive.v2.content.ranking.domain.AudioRanking
@@ -23,6 +24,7 @@ class AudioRankingFacadeTest {
             type = AudioRankingType.RISING,
             items = listOf(
                 AudioRankingItem(
+                    creatorMemberId = 10L,
                     contentId = 1L,
                     title = "audio",
                     creatorNickname = "creator",
@@ -33,11 +35,11 @@ class AudioRankingFacadeTest {
                 )
             )
         )
-        Mockito.doReturn(ranking).`when`(queryService).getRankings(AudioRankingType.RISING, member)
+        Mockito.doReturn(ranking).`when`(queryService).getRankings(AudioRankingType.RISING, member, Lang.KO)
 
-        val response = facade.getRankings(AudioRankingType.RISING, member)
+        val response = facade.getRankings(AudioRankingType.RISING, member, Lang.KO)
 
-        Mockito.verify(queryService).getRankings(AudioRankingType.RISING, member)
+        Mockito.verify(queryService).getRankings(AudioRankingType.RISING, member, Lang.KO)
         assertEquals(true, response.showRankChange)
         assertEquals(AudioRankingType.RISING, response.type)
         assertEquals(1, response.items.size)

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/ranking/dto/AudioRankingResponseTest.kt

@@ -19,6 +19,7 @@ class AudioRankingResponseTest {
             type = AudioRankingType.RISING,
             items = listOf(
                 AudioRankingItem(
+                    creatorMemberId = 10L,
                     contentId = 1001L,
                     title = "rising audio",
                     creatorNickname = "creator",

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/recommendation/adapter/in/web/AudioRecommendationControllerTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.content.recommendation.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
 import kr.co.vividnext.sodalive.configs.SecurityConfig
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.jwt.JwtAccessDeniedHandler
@@ -12,6 +13,7 @@ import kr.co.vividnext.sodalive.member.MemberAdapter
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.api.content.recommendation.application.AudioRecommendationFacade
 import kr.co.vividnext.sodalive.v2.api.content.recommendation.dto.AudioRecommendationsResponse
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -39,6 +41,11 @@ class AudioRecommendationControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -54,7 +61,7 @@ class AudioRecommendationControllerTest @Autowired constructor(
     @Test
     @DisplayName("오디오 추천 조회는 비회원에게 200 OK와 ApiResponse.ok wrapper를 반환한다")
     fun shouldReturnRecommendationsForAnonymous() {
-        Mockito.doReturn(emptyResponse()).`when`(facade).getRecommendations(null)
+        Mockito.doReturn(emptyResponse()).`when`(facade).getRecommendations(null, Lang.KO)
 
         mockMvc.perform(get("/api/v2/audio/recommendations"))
             .andExpect(status().isOk)
@@ -74,13 +81,13 @@ class AudioRecommendationControllerTest @Autowired constructor(
             nickname = "viewer",
             role = MemberRole.USER
         ).apply { id = 10L }
-        Mockito.doReturn(emptyResponse()).`when`(facade).getRecommendations(eqValue(member))
+        Mockito.doReturn(emptyResponse()).`when`(facade).getRecommendations(eqValue(member), eqValue(Lang.KO))
 
         mockMvc.perform(get("/api/v2/audio/recommendations").with(user(MemberAdapter(member))))
             .andExpect(status().isOk)
             .andExpect(jsonPath("$.success").value(true))
 
-        Mockito.verify(facade).getRecommendations(eqValue(member))
+        Mockito.verify(facade).getRecommendations(eqValue(member), eqValue(Lang.KO))
     }
 
     private fun emptyResponse(): AudioRecommendationsResponse {

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/content/recommendation/application/AudioRecommendationFacadeTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.api.content.recommendation.application
 
 import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.v2.common.domain.RecommendationBanner
 import kr.co.vividnext.sodalive.v2.content.recommendation.application.AudioRecommendationQueryService
 import kr.co.vividnext.sodalive.v2.content.recommendation.domain.AudioCard
@@ -20,9 +21,9 @@ class AudioRecommendationFacadeTest {
     @Test
     @DisplayName("facade는 도메인 추천 결과를 모든 공개 응답 필드로 변환한다")
     fun shouldConvertDomainRecommendationsToResponse() {
-        Mockito.doReturn(domain()).`when`(queryService).getRecommendations(null)
+        Mockito.doReturn(domain()).`when`(queryService).getRecommendations(null, Lang.KO)
 
-        val response = facade.getRecommendations(null)
+        val response = facade.getRecommendations(null, Lang.KO)
 
         assertEquals(1, response.banners.size)
         assertEquals(1, response.originalSeries.size)
@@ -49,6 +50,7 @@ class AudioRecommendationFacadeTest {
 
     private fun domain(): AudioRecommendations {
         val card = AudioCard(
+            creatorMemberId = 10L,
             audioContentId = 1L,
             title = "audio",
             duration = "00:01",

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/audio/adapter/in/web/CreatorChannelAudioControllerTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.audio.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Member
@@ -11,6 +12,7 @@ import kr.co.vividnext.sodalive.v2.api.creator.channel.audio.dto.CreatorChannelA
 import kr.co.vividnext.sodalive.v2.api.creator.channel.audio.dto.CreatorChannelAudioThemeResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.common.dto.CreatorChannelAudioContentResponse
 import kr.co.vividnext.sodalive.v2.common.domain.ContentSort
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -47,6 +49,11 @@ class CreatorChannelAudioControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -88,7 +95,8 @@ class CreatorChannelAudioControllerTest @Autowired constructor(
             eqValue(null),
             eqValue(null),
             eqValue(null),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -118,7 +126,8 @@ class CreatorChannelAudioControllerTest @Autowired constructor(
             eqValue(null),
             eqValue(null),
             eqValue(null),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 
@@ -133,7 +142,8 @@ class CreatorChannelAudioControllerTest @Autowired constructor(
             eqValue(999L),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -158,7 +168,8 @@ class CreatorChannelAudioControllerTest @Autowired constructor(
             eqValue(999L),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/audio/application/CreatorChannelAudioFacadeTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.creator.channel.audio.application
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.module.kotlin.KotlinModule
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.common.domain.ContentSort
@@ -33,7 +34,8 @@ class CreatorChannelAudioFacadeTest {
             themeId = 10L,
             page = 0,
             size = 20,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         val response = facade.getAudioTab(
@@ -43,7 +45,8 @@ class CreatorChannelAudioFacadeTest {
             themeId = 10L,
             page = 0,
             size = 20,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         assertEquals(3, response.audioContentCount)

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/community/adapter/in/web/CreatorChannelCommunityControllerTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.community.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Member
@@ -14,6 +15,7 @@ import kr.co.vividnext.sodalive.v2.api.creator.channel.community.dto.CreatorChan
 import kr.co.vividnext.sodalive.v2.api.creator.channel.community.dto.CreatorChannelCommunityRepliesResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.community.dto.CreatorChannelCommunityReplyResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.community.dto.CreatorChannelCommunityTabResponse
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -50,6 +52,11 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -89,7 +96,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(1),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -117,7 +125,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(1),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 
@@ -130,7 +139,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -148,7 +158,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 
@@ -169,7 +180,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
         Mockito.doReturn(createDetailResponse()).`when`(facade).getCommunityPostDetail(
             eqValue(101L),
             eqValue(viewer),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -195,7 +207,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(0),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -222,7 +235,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -240,7 +254,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 
@@ -253,7 +268,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(0),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -278,7 +294,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -296,7 +313,8 @@ class CreatorChannelCommunityControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/community/adapter/in/web/CreatorChannelCommunityEndToEndTest.kt

@@ -22,6 +22,7 @@ import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc
 import org.springframework.boot.test.context.SpringBootTest
 import org.springframework.boot.test.mock.mockito.MockBean
+import org.springframework.jdbc.core.JdbcTemplate
 import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.user
 import org.springframework.test.context.ContextConfiguration
 import org.springframework.test.web.servlet.MockMvc
@@ -44,7 +45,8 @@ import javax.persistence.EntityManager
 class CreatorChannelCommunityEndToEndTest @Autowired constructor(
     private val mockMvc: MockMvc,
     private val entityManager: EntityManager,
-    private val transactionTemplate: TransactionTemplate
+    private val transactionTemplate: TransactionTemplate,
+    private val jdbcTemplate: JdbcTemplate
 ) {
     @MockBean
     private lateinit var audioContentCloudFront: AudioContentCloudFront
@@ -52,6 +54,67 @@ class CreatorChannelCommunityEndToEndTest @Autowired constructor(
     @MockBean
     private lateinit var creatorCommunityTranslationService: CreatorCommunityTranslationService
 
+    @Test
+    @DisplayName("커뮤니티 상세의 JA 이름은 크리에이터 댓글과 최신 답글에만 적용하고 USER 이름은 유지한다")
+    fun shouldLocalizeCreatorAuthorsAndLatestRepliesWithoutChangingUserNames() {
+        val fixture = transactionTemplate.execute {
+            val viewer = saveMember("community-localized-viewer", MemberRole.USER)
+            val creator = saveMember("community-localized-creator", MemberRole.CREATOR)
+            savePreference(viewer, isAdultContentVisible = true)
+            val post = saveCommunity(creator, isFixed = false, price = 0, content = "localized-name community")
+            val userComment = saveCommunityComment(viewer, post)
+            val creatorComment = saveCommunityComment(creator, post)
+            saveCommunityComment(creator, post, parent = userComment)
+            entityManager.flush()
+            listOf(creator.id!! to "日本語の投稿者", viewer.id!! to "USERには使わない名前").forEach { (memberId, name) ->
+                jdbcTemplate.update(
+                    """
+                    insert into creator_localized_name (member_id, lang, display_name, is_active, created_at, updated_at)
+                    values (?, 'JA', ?, true, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+                    """.trimIndent(),
+                    memberId,
+                    name
+                )
+            }
+            updateCommentCreatedAt(userComment.id!!, LocalDateTime.of(2026, 10, 14, 10, 0))
+            updateCommentCreatedAt(creatorComment.id!!, LocalDateTime.of(2026, 10, 14, 11, 0))
+            entityManager.clear()
+            PostFixture(viewer = viewer, postId = post.id!!)
+        }!!
+
+        mockMvc.perform(
+            get("/api/v2/creator-channels/community-posts/${fixture.postId}")
+                .header("Accept-Language", "ja")
+                .with(user(MemberAdapter(fixture.viewer)))
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.success").value(true))
+            .andExpect(jsonPath("$.data.creatorNickname").value("日本語の投稿者"))
+            .andExpect(jsonPath("$.data.content").value("localized-name community"))
+            .andExpect(jsonPath("$.data.comments.comments.length()").value(2))
+            .andExpect(jsonPath("$.data.comments.comments[0].writerNickname").value("日本語の投稿者"))
+            .andExpect(jsonPath("$.data.comments.comments[1].writerId").value(fixture.viewer.id))
+            .andExpect(jsonPath("$.data.comments.comments[1].writerNickname").value("community-localized-viewer"))
+            .andExpect(jsonPath("$.data.comments.comments[1].latestReply.writerNickname").value("日本語の投稿者"))
+
+        transactionTemplate.executeWithoutResult {
+            jdbcTemplate.update(
+                "update creator_localized_name set display_name = ? where member_id = ? and lang = 'JA'",
+                "deleted_表示名そのまま",
+                entityManager.find(CreatorCommunity::class.java, fixture.postId).member!!.id!!
+            )
+        }
+        mockMvc.perform(
+            get("/api/v2/creator-channels/community-posts/${fixture.postId}")
+                .header("Accept-Language", "ja")
+                .with(user(MemberAdapter(fixture.viewer)))
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.creatorNickname").value("deleted_表示名そのまま"))
+            .andExpect(jsonPath("$.data.comments.comments[0].writerNickname").value("deleted_表示名そのまま"))
+            .andExpect(jsonPath("$.data.comments.comments[1].latestReply.writerNickname").value("deleted_表示名そのまま"))
+    }
+
     @Test
     @DisplayName("커뮤니티 탭 API는 E2E로 정렬, fallback, 성인 필터, 유료 미디어 접근 정책을 반환한다")
     fun shouldReturnCommunityTabThroughControllerServiceAndRepository() {

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/community/application/CreatorChannelCommunityFacadeTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.creator.channel.community.application
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.module.kotlin.KotlinModule
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.api.creator.channel.community.dto.CreatorChannelCommunityTabResponse
@@ -71,7 +72,8 @@ class CreatorChannelCommunityFacadeTest {
             viewer = viewer,
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         val response = facade.getCommunityTab(
@@ -79,7 +81,8 @@ class CreatorChannelCommunityFacadeTest {
             viewer = viewer,
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         assertEquals(2, response.communityPostCount)
@@ -99,9 +102,9 @@ class CreatorChannelCommunityFacadeTest {
         val facade = CreatorChannelCommunityFacade(service)
         val viewer = createMember(id = 10L)
         val now = LocalDateTime.of(2026, 7, 6, 12, 0)
-        Mockito.doReturn(createDetail()).`when`(service).getCommunityPostDetail(101L, viewer, now)
+        Mockito.doReturn(createDetail()).`when`(service).getCommunityPostDetail(101L, viewer, now, Lang.KO)
 
-        val response = facade.getCommunityPostDetail(101L, viewer, now)
+        val response = facade.getCommunityPostDetail(101L, viewer, now, Lang.KO)
 
         assertEquals(101L, response.postId)
         assertTrue(response.isLiked)
@@ -119,9 +122,9 @@ class CreatorChannelCommunityFacadeTest {
         val facade = CreatorChannelCommunityFacade(service)
         val viewer = createMember(id = 10L)
         val now = LocalDateTime.of(2026, 7, 6, 12, 0)
-        Mockito.doReturn(createComments()).`when`(service).getCommunityComments(101L, viewer, -1, 100, now)
+        Mockito.doReturn(createComments()).`when`(service).getCommunityComments(101L, viewer, -1, 100, now, Lang.KO)
 
-        val response = facade.getCommunityComments(101L, viewer, -1, 100, now)
+        val response = facade.getCommunityComments(101L, viewer, -1, 100, now, Lang.KO)
 
         assertEquals(1, response.commentCount)
         assertEquals(0, response.page)
@@ -139,9 +142,9 @@ class CreatorChannelCommunityFacadeTest {
         val facade = CreatorChannelCommunityFacade(service)
         val viewer = createMember(id = 10L)
         val now = LocalDateTime.of(2026, 7, 6, 12, 0)
-        Mockito.doReturn(createReplies()).`when`(service).getCommunityReplies(201L, viewer, -1, 100, now)
+        Mockito.doReturn(createReplies()).`when`(service).getCommunityReplies(201L, viewer, -1, 100, now, Lang.KO)
 
-        val response = facade.getCommunityReplies(201L, viewer, -1, 100, now)
+        val response = facade.getCommunityReplies(201L, viewer, -1, 100, now, Lang.KO)
 
         assertEquals(1, response.replyCount)
         assertEquals(201L, response.replies.first().commentId)

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/donation/adapter/in/web/CreatorChannelDonationControllerTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.donation.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Member
@@ -10,6 +11,7 @@ import kr.co.vividnext.sodalive.v2.api.creator.channel.donation.application.Crea
 import kr.co.vividnext.sodalive.v2.api.creator.channel.donation.dto.CreatorChannelDonationResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.donation.dto.CreatorChannelDonationTabResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.donation.dto.MemberDonationRankingResponse
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -46,6 +48,11 @@ class CreatorChannelDonationControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -85,7 +92,8 @@ class CreatorChannelDonationControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(1),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -117,7 +125,8 @@ class CreatorChannelDonationControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(1),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/donation/application/CreatorChannelDonationFacadeTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.creator.channel.donation.application
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.module.kotlin.KotlinModule
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.api.creator.channel.donation.dto.CreatorChannelDonationTabResponse
@@ -10,6 +11,7 @@ import kr.co.vividnext.sodalive.v2.creator.channel.donation.domain.CreatorChanne
 import kr.co.vividnext.sodalive.v2.creator.channel.donation.domain.CreatorChannelDonationRanking
 import kr.co.vividnext.sodalive.v2.creator.channel.donation.domain.CreatorChannelDonationTab
 import kr.co.vividnext.sodalive.v2.creator.channel.live.domain.CreatorChannelPage
+import kr.co.vividnext.sodalive.v2.creatorname.application.CreatorLocalizedNameService
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Assertions.assertFalse
 import org.junit.jupiter.api.Assertions.assertTrue
@@ -57,7 +59,10 @@ class CreatorChannelDonationFacadeTest {
     @DisplayName("후원 탭 facade는 query service 결과를 공개 응답 DTO로 변환한다")
     fun shouldMapDonationTabQueryResultToPublicResponse() {
         val service = Mockito.mock(CreatorChannelDonationQueryService::class.java)
-        val facade = CreatorChannelDonationFacade(service)
+        val facade = CreatorChannelDonationFacade(
+            service,
+            Mockito.mock(CreatorLocalizedNameService::class.java)
+        )
         val viewer = createMember(id = 10L)
         val now = LocalDateTime.of(2026, 6, 21, 12, 0)
         Mockito.doReturn(createTab()).`when`(service).getDonationTab(
@@ -65,7 +70,8 @@ class CreatorChannelDonationFacadeTest {
             viewer = viewer,
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         val response = facade.getDonationTab(
@@ -73,7 +79,8 @@ class CreatorChannelDonationFacadeTest {
             viewer = viewer,
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         assertEquals(3, response.donationCount)
@@ -106,6 +113,7 @@ class CreatorChannelDonationFacadeTest {
             ),
             donations = listOf(
                 CreatorChannelDonation(
+                    memberId = 10L,
                     nickname = "donor",
                     profileImageUrl = "https://cdn.test/donor.png",
                     can = 50,

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/fantalk/adapter/in/web/CreatorChannelFanTalkControllerTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Member
@@ -10,6 +11,7 @@ import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.application.Creat
 import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.dto.CreatorChannelFanTalkReplyResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.dto.CreatorChannelFanTalkResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.dto.CreatorChannelFanTalkTabResponse
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -46,6 +48,11 @@ class CreatorChannelFanTalkControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -85,7 +92,8 @@ class CreatorChannelFanTalkControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(1),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -111,7 +119,8 @@ class CreatorChannelFanTalkControllerTest @Autowired constructor(
             eqValue(viewer),
             eqValue(1),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/fantalk/application/CreatorChannelFanTalkFacadeTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.application
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.module.kotlin.KotlinModule
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.api.creator.channel.fantalk.dto.CreatorChannelFanTalkTabResponse
@@ -59,7 +60,8 @@ class CreatorChannelFanTalkFacadeTest {
             viewer = viewer,
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         val response = facade.getFanTalkTab(
@@ -67,7 +69,8 @@ class CreatorChannelFanTalkFacadeTest {
             viewer = viewer,
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         assertEquals(2, response.fanTalkCount)

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/home/adapter/in/web/CreatorChannelHomeControllerTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.home.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Member
@@ -21,6 +22,7 @@ import kr.co.vividnext.sodalive.v2.creator.channel.home.domain.CreatorChannelLiv
 import kr.co.vividnext.sodalive.v2.creator.channel.home.domain.CreatorChannelSchedule
 import kr.co.vividnext.sodalive.v2.creator.channel.home.domain.CreatorChannelSeries
 import kr.co.vividnext.sodalive.v2.creator.channel.home.domain.CreatorChannelSns
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -57,6 +59,11 @@ class CreatorChannelHomeControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -94,7 +101,8 @@ class CreatorChannelHomeControllerTest @Autowired constructor(
         Mockito.doReturn(CreatorChannelHomeResponse.from(createHome())).`when`(facade).getHome(
             Mockito.eq(1L),
             Mockito.any(Member::class.java) ?: viewer,
-            Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now()
+            Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now(),
+            Mockito.eq(Lang.KO) ?: Lang.KO
         )
 
         mockMvc.perform(
@@ -147,7 +155,8 @@ class CreatorChannelHomeControllerTest @Autowired constructor(
         Mockito.verify(facade).getHome(
             Mockito.eq(1L),
             Mockito.eq(viewer) ?: viewer,
-            Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now()
+            Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now(),
+            Mockito.eq(Lang.KO) ?: Lang.KO
         )
     }
 
@@ -158,7 +167,8 @@ class CreatorChannelHomeControllerTest @Autowired constructor(
         Mockito.doReturn(CreatorChannelHomeResponse.from(createEmptyHome())).`when`(facade).getHome(
             Mockito.eq(1L),
             Mockito.any(Member::class.java) ?: viewer,
-            Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now()
+            Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now(),
+            Mockito.eq(Lang.KO) ?: Lang.KO
         )
 
         mockMvc.perform(
@@ -244,6 +254,7 @@ class CreatorChannelHomeControllerTest @Autowired constructor(
             ),
             channelDonations = listOf(
                 CreatorChannelDonation(
+                    memberId = 20L,
                     nickname = "fan",
                     profileImageUrl = "fan.png",
                     can = 50,

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/home/application/CreatorChannelHomeFacadeTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.home.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.common.domain.CreatorActivityType
@@ -39,13 +40,15 @@ class CreatorChannelHomeFacadeTest {
         Mockito.doReturn(createHome()).`when`(service).getHome(
             creatorId = 1L,
             viewer = viewer,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         val response = facade.getHome(
             creatorId = 1L,
             viewer = viewer,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         assertEquals(1L, response.creator.creatorId)
@@ -90,21 +93,23 @@ class CreatorChannelHomeFacadeTest {
         Mockito.doReturn(createHome()).`when`(service).getHome(
             Mockito.eq(1L),
             Mockito.eq(viewer) ?: viewer,
-            Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now()
+            Mockito.any(LocalDateTime::class.java) ?: LocalDateTime.now(),
+            Mockito.eq(Lang.KO) ?: Lang.KO
         )
 
         try {
             TimeZone.setDefault(TimeZone.getTimeZone("Asia/Seoul"))
             val beforeUtc = LocalDateTime.now(ZoneOffset.UTC).minusSeconds(1)
 
-            facade.getHome(creatorId = 1L, viewer = viewer)
+            facade.getHome(creatorId = 1L, viewer = viewer, lang = Lang.KO)
 
             val afterUtc = LocalDateTime.now(ZoneOffset.UTC).plusSeconds(1)
             val nowCaptor = ArgumentCaptor.forClass(LocalDateTime::class.java)
             Mockito.verify(service).getHome(
                 Mockito.eq(1L),
                 Mockito.eq(viewer) ?: viewer,
-                nowCaptor.capture() ?: LocalDateTime.MIN
+                nowCaptor.capture() ?: LocalDateTime.MIN,
+                Mockito.eq(Lang.KO) ?: Lang.KO
             )
             val capturedNow = nowCaptor.value
             assertTrue(!capturedNow.isBefore(beforeUtc), "captured now should be after UTC lower bound")
@@ -180,6 +185,7 @@ class CreatorChannelHomeFacadeTest {
             ),
             channelDonations = listOf(
                 CreatorChannelDonation(
+                    memberId = 20L,
                     nickname = "fan",
                     profileImageUrl = "fan.png",
                     can = 50,

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/live/adapter/in/web/CreatorChannelLiveControllerTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.live.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Member
@@ -11,6 +12,7 @@ import kr.co.vividnext.sodalive.v2.api.creator.channel.live.application.CreatorC
 import kr.co.vividnext.sodalive.v2.api.creator.channel.live.dto.CreatorChannelLiveResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.live.dto.CreatorChannelLiveTabResponse
 import kr.co.vividnext.sodalive.v2.common.domain.ContentSort
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -47,6 +49,11 @@ class CreatorChannelLiveControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -87,7 +94,8 @@ class CreatorChannelLiveControllerTest @Autowired constructor(
             eqValue(ContentSort.LATEST),
             eqValue(0),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -112,7 +120,8 @@ class CreatorChannelLiveControllerTest @Autowired constructor(
             eqValue(ContentSort.LATEST),
             eqValue(0),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 
@@ -127,7 +136,8 @@ class CreatorChannelLiveControllerTest @Autowired constructor(
                 eqValue(ContentSort.LATEST),
                 eqValue(0),
                 eqValue(20),
-                anyValue(LocalDateTime.now())
+                anyValue(LocalDateTime.now()),
+                eqValue(Lang.KO)
             )
 
         mockMvc.perform(
@@ -162,7 +172,8 @@ class CreatorChannelLiveControllerTest @Autowired constructor(
                 eqValue(ContentSort.LATEST),
                 eqValue(-1),
                 eqValue(20),
-                anyValue(LocalDateTime.now())
+                anyValue(LocalDateTime.now()),
+                eqValue(Lang.KO)
             )
 
         mockMvc.perform(
@@ -185,7 +196,8 @@ class CreatorChannelLiveControllerTest @Autowired constructor(
                 eqValue(ContentSort.LATEST),
                 eqValue(0),
                 eqValue(0),
-                anyValue(LocalDateTime.now())
+                anyValue(LocalDateTime.now()),
+                eqValue(Lang.KO)
             )
 
         mockMvc.perform(

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/live/application/CreatorChannelLiveFacadeTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.live.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.common.domain.ContentSort
@@ -30,7 +31,8 @@ class CreatorChannelLiveFacadeTest {
             sort = ContentSort.LATEST,
             page = 0,
             size = 20,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         val response = facade.getLiveTab(
@@ -39,7 +41,8 @@ class CreatorChannelLiveFacadeTest {
             sort = ContentSort.LATEST,
             page = 0,
             size = 20,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         assertEquals(1, response.liveReplayContentCount)

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/series/adapter/in/web/CreatorChannelSeriesControllerTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.api.creator.channel.series.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Member
@@ -10,6 +11,7 @@ import kr.co.vividnext.sodalive.v2.api.creator.channel.series.application.Creato
 import kr.co.vividnext.sodalive.v2.api.creator.channel.series.dto.CreatorChannelSeriesResponse
 import kr.co.vividnext.sodalive.v2.api.creator.channel.series.dto.CreatorChannelSeriesTabResponse
 import kr.co.vividnext.sodalive.v2.common.domain.ContentSort
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -46,6 +48,11 @@ class CreatorChannelSeriesControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -86,7 +93,8 @@ class CreatorChannelSeriesControllerTest @Autowired constructor(
             eqValue("POPULAR"),
             eqValue(1),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -118,7 +126,8 @@ class CreatorChannelSeriesControllerTest @Autowired constructor(
             eqValue("POPULAR"),
             eqValue(1),
             eqValue(20),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 
@@ -132,7 +141,8 @@ class CreatorChannelSeriesControllerTest @Autowired constructor(
             eqValue("INVALID"),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
 
         mockMvc.perform(
@@ -153,7 +163,8 @@ class CreatorChannelSeriesControllerTest @Autowired constructor(
             eqValue("INVALID"),
             eqValue(-1),
             eqValue(100),
-            anyValue(LocalDateTime.now())
+            anyValue(LocalDateTime.now()),
+            eqValue(Lang.KO)
         )
     }
 

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/creator/channel/series/application/CreatorChannelSeriesFacadeTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.creator.channel.series.application
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.module.kotlin.KotlinModule
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.api.creator.channel.series.dto.CreatorChannelSeriesTabResponse
@@ -63,7 +64,8 @@ class CreatorChannelSeriesFacadeTest {
             sort = "OWNED",
             page = 1,
             size = 20,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         val response = facade.getSeriesTab(
@@ -72,7 +74,8 @@ class CreatorChannelSeriesFacadeTest {
             sort = "OWNED",
             page = 1,
             size = 20,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         assertEquals(2, response.seriesCount)

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/CreatorRankingControllerTest.kt

@@ -9,11 +9,13 @@ import kr.co.vividnext.sodalive.support.EmbeddedRedisInitializer
 import kr.co.vividnext.sodalive.v2.ranking.adapter.out.persistence.CreatorRankingSnapshot
 import kr.co.vividnext.sodalive.v2.ranking.domain.CreatorRankingScoreSpec
 import kr.co.vividnext.sodalive.v2.ranking.domain.CreatorRankingType
+import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc
 import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.jdbc.core.JdbcTemplate
 import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.user
 import org.springframework.test.context.ContextConfiguration
 import org.springframework.test.web.servlet.MockMvc
@@ -37,8 +39,51 @@ import javax.persistence.EntityManager
 class CreatorRankingControllerTest @Autowired constructor(
     private val mockMvc: MockMvc,
     private val memberRepository: MemberRepository,
-    private val entityManager: EntityManager
+    private val entityManager: EntityManager,
+    private val jdbcTemplate: JdbcTemplate
 ) {
+    @Test
+    @DisplayName("언어 중립 랭킹은 조회 언어의 현재 이름을 반환하고 저장된 스냅샷 이름은 변경하지 않는다")
+    fun shouldRenderCurrentLocalizedNamesWithoutRewritingRankingSnapshots() {
+        val localized = saveMember("ranking-localized-before", MemberRole.CREATOR)
+        val fallback = saveMember("ranking-fallback-before", MemberRole.CREATOR)
+        saveSnapshot(localized.id!!, "ranking-localized-before", null, rankNo = 1)
+        saveSnapshot(fallback.id!!, "ranking-fallback-before", null, rankNo = 2)
+        jdbcTemplate.update(
+            """
+            insert into creator_localized_name (member_id, lang, display_name, is_active, created_at, updated_at)
+            values (?, 'JA', ?, true, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+            """.trimIndent(),
+            localized.id,
+            "日本語ランキング名"
+        )
+        localized.nickname = "ranking-localized-current"
+        fallback.nickname = "ranking-fallback-current"
+        entityManager.flush()
+        entityManager.clear()
+
+        mockMvc.perform(get("/api/v2/home/rankings/creators").header("Accept-Language", "ja"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.items[0].creatorId").value(localized.id))
+            .andExpect(jsonPath("$.data.items[0].nickname").value("日本語ランキング名"))
+            .andExpect(jsonPath("$.data.items[1].creatorId").value(fallback.id))
+            .andExpect(jsonPath("$.data.items[1].nickname").value("ranking-fallback-current"))
+
+        mockMvc.perform(get("/api/v2/home/rankings/creators").header("Accept-Language", "ko"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.items[0].nickname").value("ranking-localized-current"))
+            .andExpect(jsonPath("$.data.items[1].nickname").value("ranking-fallback-current"))
+
+        assertEquals(
+            listOf("ranking-localized-before", "ranking-fallback-before"),
+            entityManager.createQuery(
+                "select s.nickname from CreatorRankingSnapshot s order by s.rankNo",
+                String::class.java
+            ).resultList
+        )
+        assertEquals("ranking-localized-current", memberRepository.findById(localized.id!!).get().nickname)
+    }
+
     @Test
     @DisplayName("크리에이터 랭킹 API는 공개 응답 스키마만 노출하고 내부 스냅샷 필드를 숨긴다")
     fun shouldReturnOnlyPublicCreatorRankingSchemaThroughEndpoint() {

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/HomeRecommendationControllerTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.home
 
 import kr.co.vividnext.sodalive.chat.character.ChatCharacter
 import kr.co.vividnext.sodalive.explorer.profile.creatorCommunity.CreatorCommunity
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.live.room.LiveRoom
 import kr.co.vividnext.sodalive.member.Gender
 import kr.co.vividnext.sodalive.member.Member
@@ -35,6 +36,7 @@ import org.springframework.boot.test.mock.mockito.MockBean
 import org.springframework.boot.test.system.CapturedOutput
 import org.springframework.boot.test.system.OutputCaptureExtension
 import org.springframework.http.MediaType
+import org.springframework.jdbc.core.JdbcTemplate
 import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.user
 import org.springframework.test.context.ContextConfiguration
 import org.springframework.test.web.servlet.MockMvc
@@ -56,11 +58,50 @@ class HomeRecommendationControllerTest @Autowired constructor(
     private val mockMvc: MockMvc,
     private val memberRepository: MemberRepository,
     private val creatorFollowingRepository: CreatorFollowingRepository,
-    private val entityManager: EntityManager
+    private val entityManager: EntityManager,
+    private val jdbcTemplate: JdbcTemplate
 ) {
     @MockBean
     private lateinit var creatorCommunityTranslationService: CreatorCommunityTranslationService
 
+    @Test
+    @DisplayName("native 데뷔 크리에이터 조회도 JA 별칭을 우선하고 KO 별칭 미등록 시 현재 원본 이름을 반환한다")
+    fun shouldLocalizeNativeDebutCreatorResultsByRequestLanguage() {
+        val viewer = saveMember("localized-native-viewer", MemberRole.USER)
+        val creator = saveMember("localized-native-before", MemberRole.CREATOR)
+        saveLiveRoom(creator, LocalDateTime.now().minusDays(1), "localized-native-live", isAdult = false)
+        entityManager.flush()
+        jdbcTemplate.update(
+            """
+            insert into creator_localized_name (member_id, lang, display_name, is_active, created_at, updated_at)
+            values (?, 'JA', ?, true, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+            """.trimIndent(),
+            creator.id,
+            "日本語デビュー名"
+        )
+        creator.nickname = "localized-native-current"
+        entityManager.flush()
+        entityManager.clear()
+
+        mockMvc.perform(
+            get("/api/v2/home/recommendations/debut-creators")
+                .header("Accept-Language", "ko")
+                .with(user(MemberAdapter(viewer)))
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.items[0].creatorId").value(creator.id))
+            .andExpect(jsonPath("$.data.items[0].creatorNickname").value("localized-native-current"))
+
+        mockMvc.perform(
+            get("/api/v2/home/recommendations/debut-creators")
+                .header("Accept-Language", "ja")
+                .with(user(MemberAdapter(viewer)))
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.items[0].creatorId").value(creator.id))
+            .andExpect(jsonPath("$.data.items[0].creatorNickname").value("日本語デビュー名"))
+    }
+
     @Test
     @DisplayName("추천 크리에이터 동시 팔로우 비로그인 요청은 Spring Security에서 거부한다")
     fun shouldRejectAnonymousFollowRequest() {
@@ -328,12 +369,16 @@ class HomeRecommendationControllerTest @Autowired constructor(
     fun shouldLogHomeRecommendationFailure(output: CapturedOutput) {
         val failingQueryService = Mockito.mock(HomeRecommendationQueryService::class.java)
         val preferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
-        val facade = HomeRecommendationFacade(failingQueryService, preferenceService, "https://cdn.test")
-        Mockito.`when`(failingQueryService.findLiveRecommendations(limit = 20, memberId = null, includeAdultLives = false))
+        val facade = HomeRecommendationFacade(
+            failingQueryService,
+            preferenceService,
+            "https://cdn.test"
+        )
+        Mockito.`when`(failingQueryService.findLiveRecommendations(limit = 20, memberId = null, lang = Lang.KO))
             .thenThrow(IllegalStateException("home query failed"))
 
         val exception = assertThrows(IllegalStateException::class.java) {
-            facade.getHomeRecommendations(member = null)
+            facade.getHomeRecommendations(member = null, lang = Lang.KO)
         }
 
         assertEquals("home query failed", exception.message)
@@ -366,7 +411,11 @@ class HomeRecommendationControllerTest @Autowired constructor(
         val member = saveMember("page-failure-viewer", MemberRole.USER)
         val failingQueryService = Mockito.mock(HomeRecommendationQueryService::class.java)
         val preferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
-        val facade = HomeRecommendationFacade(failingQueryService, preferenceService, "https://cdn.test")
+        val facade = HomeRecommendationFacade(
+            failingQueryService,
+            preferenceService,
+            "https://cdn.test"
+        )
         Mockito.`when`(preferenceService.canViewAdultContent(member)).thenReturn(false)
         Mockito.`when`(
             failingQueryService.findLiveRecommendations(
@@ -375,13 +424,14 @@ class HomeRecommendationControllerTest @Autowired constructor(
                 memberId = member.id,
                 includeAdultLives = false,
                 isViewerCreator = false,
-                effectiveViewerGender = Gender.NONE
+                effectiveViewerGender = Gender.NONE,
+                lang = Lang.KO
             )
         )
             .thenThrow(IllegalStateException("page query failed"))
 
         val exception = assertThrows(IllegalStateException::class.java) {
-            facade.getLives(member, page = 0, size = 20)
+            facade.getLives(member, page = 0, size = 20, lang = Lang.KO)
         }
 
         assertEquals("page query failed", exception.message)
@@ -395,7 +445,11 @@ class HomeRecommendationControllerTest @Autowired constructor(
         val member = saveMember("other-page-failure-viewer", MemberRole.USER)
         val failingQueryService = Mockito.mock(HomeRecommendationQueryService::class.java)
         val preferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
-        val facade = HomeRecommendationFacade(failingQueryService, preferenceService, "https://cdn.test")
+        val facade = HomeRecommendationFacade(
+            failingQueryService,
+            preferenceService,
+            "https://cdn.test"
+        )
         Mockito.`when`(preferenceService.canViewAdultContent(member)).thenReturn(false)
         Mockito.`when`(
             failingQueryService.findRecentDebutCreators(
@@ -403,13 +457,16 @@ class HomeRecommendationControllerTest @Autowired constructor(
                 offset = Mockito.eq(0L),
                 limit = Mockito.eq(21),
                 memberId = Mockito.eq(member.id),
-                includeAdultContents = Mockito.eq(false)
+                includeAdultContents = Mockito.eq(false),
+                lang = Mockito.eq(Lang.KO) ?: Lang.KO
             )
         ).thenThrow(IllegalStateException("debut page failed"))
         Mockito.`when`(failingQueryService.findAiCharacterRecommendations(offset = 0L, limit = 21))
             .thenThrow(IllegalStateException("ai page failed"))
 
-        assertThrows(IllegalStateException::class.java) { facade.getRecentDebutCreators(member, page = 0, size = 20) }
+        assertThrows(IllegalStateException::class.java) {
+            facade.getRecentDebutCreators(member, page = 0, size = 20, lang = Lang.KO)
+        }
         assertThrows(IllegalStateException::class.java) { facade.getAiCharacters(member, page = 0, size = 20) }
 
         assertTrue(output.out.contains("section=DEBUT_CREATOR"))

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/application/HomeRecommendationFacadeTest.kt

@@ -1,7 +1,6 @@
 package kr.co.vividnext.sodalive.v2.api.home.application
 
 import kr.co.vividnext.sodalive.i18n.Lang
-import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Gender
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
@@ -35,11 +34,14 @@ class HomeRecommendationFacadeTest {
     private val queryService = HomeRecommendationQueryService(
         queryPort,
         EmptyRecommendationSnapshotPort(),
-        langContext = LangContext(),
         creatorCommunityTranslationService = creatorCommunityTranslationService
     )
     private val preferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
-    private val facade = HomeRecommendationFacade(queryService, preferenceService, "https://cdn.test")
+    private val facade = HomeRecommendationFacade(
+        queryService,
+        preferenceService,
+        "https://cdn.test"
+    )
 
     @Test
     @DisplayName("홈 첫 오디오 응답은 무료 콘텐츠의 포인트 가능 여부를 false로 보정한다")
@@ -50,7 +52,7 @@ class HomeRecommendationFacadeTest {
             firstAudio(price = 100, isPointAvailable = false)
         )
 
-        val response = facade.getHomeRecommendations(null)
+        val response = facade.getHomeRecommendations(null, Lang.KO)
 
         assertFalse(response.firstAudioContents[0].isPointAvailable)
         assertTrue(response.firstAudioContents[1].isPointAvailable)
@@ -63,7 +65,7 @@ class HomeRecommendationFacadeTest {
         val member = Member(password = "password", nickname = "member").apply { id = 10L }
         Mockito.doReturn(true).`when`(preferenceService).canViewAdultContent(member)
 
-        facade.getHomeRecommendations(member)
+        facade.getHomeRecommendations(member, Lang.KO)
 
         assertTrue(queryPort.bannerIncludeAdultBanners)
     }
@@ -74,7 +76,7 @@ class HomeRecommendationFacadeTest {
         val member = Member(password = "password", nickname = "jp-member").apply { id = 11L }
         Mockito.doReturn("JP").`when`(preferenceService).resolveCountryCode(member)
 
-        facade.getHomeRecommendations(member)
+        facade.getHomeRecommendations(member, Lang.KO)
 
         assertTrue(queryPort.bannerLang == Lang.JA)
     }
@@ -84,7 +86,7 @@ class HomeRecommendationFacadeTest {
     fun shouldPassKoToHomeBannerQueryForNonJapan() {
         Mockito.doReturn("KR").`when`(preferenceService).resolveCountryCode(null)
 
-        facade.getHomeRecommendations(null)
+        facade.getHomeRecommendations(null, Lang.KO)
 
         assertTrue(queryPort.bannerLang == Lang.KO)
     }
@@ -94,7 +96,7 @@ class HomeRecommendationFacadeTest {
     fun shouldPassCreatorRoleAndAuthGenderToHomeLiveQuery() {
         val member = createMember(id = 12L, role = MemberRole.CREATOR, gender = Gender.FEMALE, authGender = 1)
 
-        facade.getHomeRecommendations(member)
+        facade.getHomeRecommendations(member, Lang.KO)
 
         assertTrue(queryPort.liveIsViewerCreator == true)
         assertTrue(queryPort.liveEffectiveViewerGender == Gender.MALE)
@@ -105,7 +107,7 @@ class HomeRecommendationFacadeTest {
     fun shouldPassCreatorRoleAndMemberGenderToLivePageQuery() {
         val member = createMember(id = 13L, role = MemberRole.CREATOR, gender = Gender.FEMALE)
 
-        facade.getLives(member, page = 0, size = 20)
+        facade.getLives(member, page = 0, size = 20, lang = Lang.KO)
 
         assertTrue(queryPort.liveIsViewerCreator == true)
         assertTrue(queryPort.liveEffectiveViewerGender == Gender.FEMALE)
@@ -153,7 +155,8 @@ class HomeRecommendationFacadeTest {
             memberId: Long?,
             includeAdultLives: Boolean,
             isViewerCreator: Boolean,
-            effectiveViewerGender: Gender?
+            effectiveViewerGender: Gender?,
+            lang: Lang
         ): List<HomeLiveRecommendationRecord> {
             liveIsViewerCreator = isViewerCreator
             liveEffectiveViewerGender = effectiveViewerGender
@@ -174,7 +177,8 @@ class HomeRecommendationFacadeTest {
         override fun findRecentlyActiveCreators(
             limit: Int,
             memberId: Long?,
-            includeAdultActivities: Boolean
+            includeAdultActivities: Boolean,
+            lang: Lang
         ): List<RecentlyActiveCreatorRecord> = emptyList()
 
         override fun findRecentDebutCreators(
@@ -182,7 +186,8 @@ class HomeRecommendationFacadeTest {
             offset: Long,
             limit: Int,
             memberId: Long?,
-            includeAdultContents: Boolean
+            includeAdultContents: Boolean,
+            lang: Lang
         ): List<RecentDebutCreatorRecord> = emptyList()
 
         override fun findFirstAudioContents(
@@ -220,20 +225,23 @@ class HomeRecommendationFacadeTest {
 
         override fun findCheerCreatorRecommendationDetails(
             creatorIds: List<Long>,
-            memberId: Long?
+            memberId: Long?,
+            lang: Lang
         ): List<HomeCheerCreatorRecommendationRecord> = emptyList()
 
         override fun findPopularCommunityRecommendationDetails(
             communityIds: List<Long>,
             memberId: Long?,
-            includeAdultCommunities: Boolean
+            includeAdultCommunities: Boolean,
+            lang: Lang
         ): List<HomePopularCommunityRecommendationRecord> = emptyList()
 
         override fun findGenreCreatorRecommendations(
             memberId: Long?,
             includeAdultGenres: Boolean,
             genreLimit: Int,
-            creatorLimit: Int
+            creatorLimit: Int,
+            lang: Lang
         ): List<HomeGenreCreatorRecommendationGroup> = emptyList()
     }
 

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/following/adapter/in/web/HomeFollowingControllerTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.home.following.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
 import kr.co.vividnext.sodalive.configs.SecurityConfig
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.jwt.JwtAccessDeniedHandler
@@ -12,6 +13,7 @@ import kr.co.vividnext.sodalive.member.MemberAdapter
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.api.home.following.application.HomeFollowingFacade
 import kr.co.vividnext.sodalive.v2.api.home.following.dto.HomeFollowingTabResponse
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -39,6 +41,11 @@ class HomeFollowingControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -54,7 +61,7 @@ class HomeFollowingControllerTest @Autowired constructor(
     @Test
     @DisplayName("팔로잉 탭 조회는 비회원에게 200 OK와 로그인 필요 응답을 반환한다")
     fun shouldReturnLoginRequiredForAnonymous() {
-        Mockito.doReturn(HomeFollowingTabResponse.loginRequired()).`when`(facade).getFollowingTab(null)
+        Mockito.doReturn(HomeFollowingTabResponse.loginRequired()).`when`(facade).getFollowingTab(null, Lang.KO)
 
         mockMvc.perform(get("/api/v2/home/following"))
             .andExpect(status().isOk)
@@ -76,14 +83,14 @@ class HomeFollowingControllerTest @Autowired constructor(
             nickname = "viewer",
             role = MemberRole.USER
         ).apply { id = 10L }
-        Mockito.doReturn(loggedInEmptyResponse()).`when`(facade).getFollowingTab(eqValue(member))
+        Mockito.doReturn(loggedInEmptyResponse()).`when`(facade).getFollowingTab(eqValue(member), eqValue(Lang.KO))
 
         mockMvc.perform(get("/api/v2/home/following").with(user(MemberAdapter(member))))
             .andExpect(status().isOk)
             .andExpect(jsonPath("$.success").value(true))
             .andExpect(jsonPath("$.data.isLoginRequired").value(false))
 
-        Mockito.verify(facade).getFollowingTab(eqValue(member))
+        Mockito.verify(facade).getFollowingTab(eqValue(member), eqValue(Lang.KO))
     }
 
     private fun loggedInEmptyResponse(): HomeFollowingTabResponse {

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/following/application/HomeFollowingFacadeTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.api.home.following.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.chat.dto.ChatRoomListItemResponse
@@ -24,12 +25,15 @@ import org.mockito.Mockito
 class HomeFollowingFacadeTest {
     private val queryService = Mockito.mock(HomeFollowingQueryService::class.java)
     private val chatRoomListService = Mockito.mock(ChatRoomListService::class.java)
-    private val facade = HomeFollowingFacade(queryService, chatRoomListService)
+    private val facade = HomeFollowingFacade(
+        queryService,
+        chatRoomListService
+    )
 
     @Test
     @DisplayName("비로그인 회원은 로그인 필요 응답을 반환하고 조회/채팅 서비스를 호출하지 않는다")
     fun shouldReturnLoginRequiredWithoutCallingServicesForAnonymous() {
-        val response = facade.getFollowingTab(null)
+        val response = facade.getFollowingTab(null, Lang.KO)
 
         assertTrue(response.isLoginRequired)
         assertTrue(response.followingCreators.isEmpty())
@@ -58,12 +62,12 @@ class HomeFollowingFacadeTest {
             lastMessage = "hello",
             lastMessageAt = "2026-06-25T01:00:00Z"
         )
-        Mockito.doReturn(home).`when`(queryService).findHomeFollowing(member)
+        Mockito.doReturn(home).`when`(queryService).findHomeFollowing(member, Lang.KO)
         Mockito.doReturn(ChatRoomListPageResponse(rooms = listOf(recentChat), hasMore = false, nextCursor = null))
             .`when`(chatRoomListService)
-            .getRooms(member, filter = "ALL", cursor = null, limit = 10, followedCreatorsOnly = true)
+            .getRooms(member, Lang.KO, filter = "ALL", cursor = null, limit = 10, followedCreatorsOnly = true)
 
-        val response = facade.getFollowingTab(member)
+        val response = facade.getFollowingTab(member, Lang.KO)
 
         assertFalse(response.isLoginRequired)
         assertEquals(1L, response.followingCreators.single().creatorId)
@@ -71,9 +75,9 @@ class HomeFollowingFacadeTest {
         assertEquals(listOf(recentChat), response.recentChats)
         assertEquals("LIVE:4", response.monthlySchedules.single().scheduleId)
         assertEquals("news-5", response.recentNews.single().newsId)
-        Mockito.verify(queryService).findHomeFollowing(member)
+        Mockito.verify(queryService).findHomeFollowing(member, Lang.KO)
         Mockito.verify(chatRoomListService)
-            .getRooms(member, filter = "ALL", cursor = null, limit = 10, followedCreatorsOnly = true)
+            .getRooms(member, Lang.KO, filter = "ALL", cursor = null, limit = 10, followedCreatorsOnly = true)
     }
 
     private fun homeFollowing(): HomeFollowing {
@@ -87,6 +91,7 @@ class HomeFollowingFacadeTest {
             ),
             onAirLives = listOf(
                 HomeFollowingLive(
+                    creatorMemberId = 1L,
                     liveId = 2L,
                     creatorProfileImageUrl = "https://cdn.test/live.png",
                     creatorNickname = "creator",
@@ -110,6 +115,7 @@ class HomeFollowingFacadeTest {
             ),
             recentNews = listOf(
                 HomeFollowingNews(
+                    creatorMemberId = 1L,
                     newsId = "news-5",
                     type = FollowingNewsType.CREATOR_RANKING,
                     visibleFromAtUtc = "2026-06-25T04:00:00Z",

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/following/dto/HomeFollowingTabResponseTest.kt

@@ -115,6 +115,7 @@ class HomeFollowingTabResponseTest {
             followingCreators = listOf(HomeFollowingCreator(1L, "creator", "https://cdn/profile.jpg")),
             onAirLives = listOf(
                 HomeFollowingLive(
+                    creatorMemberId = 101L,
                     liveId = 10L,
                     creatorProfileImageUrl = "https://cdn/live-profile.jpg",
                     creatorNickname = "live-creator",
@@ -147,6 +148,7 @@ class HomeFollowingTabResponseTest {
             ),
             recentNews = listOf(
                 HomeFollowingNews(
+                    creatorMemberId = 1L,
                     newsId = "30",
                     type = FollowingNewsType.CREATOR_RANKING,
                     visibleFromAtUtc = "2026-06-25T09:00:00Z",
@@ -158,6 +160,7 @@ class HomeFollowingTabResponseTest {
                     )
                 ),
                 HomeFollowingNews(
+                    creatorMemberId = 2L,
                     newsId = "31",
                     type = FollowingNewsType.AUDIO_CONTENT,
                     visibleFromAtUtc = "2026-06-26T00:00:00Z",
@@ -170,6 +173,7 @@ class HomeFollowingTabResponseTest {
                     )
                 ),
                 HomeFollowingNews(
+                    creatorMemberId = 3L,
                     newsId = "32",
                     type = FollowingNewsType.PHOTO_CONTENT,
                     visibleFromAtUtc = "2026-06-27T00:00:00Z",
@@ -182,6 +186,7 @@ class HomeFollowingTabResponseTest {
                     )
                 ),
                 HomeFollowingNews(
+                    creatorMemberId = 4L,
                     newsId = "33",
                     type = FollowingNewsType.CONTENT_RANKING,
                     visibleFromAtUtc = "2026-06-28T00:00:00Z",
@@ -193,6 +198,7 @@ class HomeFollowingTabResponseTest {
                     )
                 ),
                 HomeFollowingNews(
+                    creatorMemberId = 5L,
                     newsId = "34",
                     type = FollowingNewsType.COMMUNITY_POST,
                     visibleFromAtUtc = "2026-06-25T03:00:00Z",

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/live/adapter/in/web/HomeOnAirLiveControllerTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.api.home.live.adapter.`in`.web
 
 import kr.co.vividnext.sodalive.common.CountryContext
 import kr.co.vividnext.sodalive.configs.SecurityConfig
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.jwt.JwtAccessDeniedHandler
@@ -13,6 +14,7 @@ import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.v2.api.home.live.application.HomeOnAirLiveFacade
 import kr.co.vividnext.sodalive.v2.api.home.live.dto.HomeOnAirLivePageResponse
 import kr.co.vividnext.sodalive.v2.api.home.live.dto.HomeOnAirLiveResponse
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
@@ -41,6 +43,11 @@ class HomeOnAirLiveControllerTest @Autowired constructor(
     @MockBean
     private lateinit var langContext: LangContext
 
+    @BeforeEach
+    fun setUpLanguage() {
+        Mockito.`when`(langContext.lang).thenReturn(Lang.KO)
+    }
+
     @MockBean
     private lateinit var sodaMessageSource: SodaMessageSource
 
@@ -61,7 +68,7 @@ class HomeOnAirLiveControllerTest @Autowired constructor(
     @DisplayName("현재 진행 중인 라이브 조회는 인증 회원과 page를 facade에 전달하고 성공 응답을 반환한다")
     fun shouldPassAuthenticatedMemberAndPageToFacade() {
         val member = createMember(100L)
-        Mockito.doReturn(createResponse()).`when`(facade).getOnAirLives(eqValue(member), eqValue(2))
+        Mockito.doReturn(createResponse()).`when`(facade).getOnAirLives(eqValue(member), eqValue(2), eqValue(Lang.KO))
 
         mockMvc.perform(
             get("/api/v2/home/on-air-lives")
@@ -73,7 +80,7 @@ class HomeOnAirLiveControllerTest @Autowired constructor(
             .andExpect(jsonPath("$.data.size").value(20))
             .andExpect(jsonPath("$.data.items[0].title").value("paid live"))
 
-        Mockito.verify(facade).getOnAirLives(eqValue(member), eqValue(2))
+        Mockito.verify(facade).getOnAirLives(eqValue(member), eqValue(2), eqValue(Lang.KO))
     }
 
     private fun createResponse() = HomeOnAirLivePageResponse(

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/live/application/HomeOnAirLiveFacadeTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.api.home.live.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Gender
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
@@ -16,7 +17,11 @@ import java.time.LocalDateTime
 class HomeOnAirLiveFacadeTest {
     private val queryService = Mockito.mock(HomeRecommendationQueryService::class.java)
     private val preferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
-    private val facade = HomeOnAirLiveFacade(queryService, preferenceService, "https://cdn.test")
+    private val facade = HomeOnAirLiveFacade(
+        queryService,
+        preferenceService,
+        "https://cdn.test"
+    )
 
     @Test
     @DisplayName("현재 진행 중인 라이브 facade는 20개 고정 page와 hasNext를 조립한다")
@@ -29,10 +34,11 @@ class HomeOnAirLiveFacadeTest {
             eqValue(member.id),
             eqValue(true),
             eqValue(false),
-            eqValue(Gender.NONE)
+            eqValue(Gender.NONE),
+            eqValue(Lang.KO)
         )
 
-        val response = facade.getOnAirLives(member, page = 0)
+        val response = facade.getOnAirLives(member, page = 0, lang = Lang.KO)
 
         assertEquals(0, response.page)
         assertEquals(20, response.size)
@@ -44,7 +50,8 @@ class HomeOnAirLiveFacadeTest {
             eqValue(member.id),
             eqValue(true),
             eqValue(false),
-            eqValue(Gender.NONE)
+            eqValue(Gender.NONE),
+            eqValue(Lang.KO)
         )
     }
 
@@ -59,10 +66,11 @@ class HomeOnAirLiveFacadeTest {
             eqValue(member.id),
             eqValue(false),
             eqValue(false),
-            eqValue(Gender.NONE)
+            eqValue(Gender.NONE),
+            eqValue(Lang.KO)
         )
 
-        val response = facade.getOnAirLives(member, page = 0)
+        val response = facade.getOnAirLives(member, page = 0, lang = Lang.KO)
 
         assertEquals("https://cdn.test/profile/default-profile.png", response.items.single().creatorProfileImage)
     }
@@ -79,10 +87,11 @@ class HomeOnAirLiveFacadeTest {
                 eqValue(member.id),
                 eqValue(false),
                 eqValue(false),
-                eqValue(Gender.NONE)
+                eqValue(Gender.NONE),
+                eqValue(Lang.KO)
             )
 
-        val response = facade.getOnAirLives(member, page = 0)
+        val response = facade.getOnAirLives(member, page = 0, lang = Lang.KO)
 
         assertEquals("2026-06-26T12:30:00Z", response.items.single().beginDateTimeUtc)
     }
@@ -98,10 +107,11 @@ class HomeOnAirLiveFacadeTest {
             eqValue(member.id),
             eqValue(true),
             eqValue(true),
-            eqValue(Gender.MALE)
+            eqValue(Gender.MALE),
+            eqValue(Lang.KO)
         )
 
-        facade.getOnAirLives(member, page = 0)
+        facade.getOnAirLives(member, page = 0, lang = Lang.KO)
 
         Mockito.verify(queryService).findLiveRecommendations(
             eqValue(0L),
@@ -109,7 +119,8 @@ class HomeOnAirLiveFacadeTest {
             eqValue(member.id),
             eqValue(true),
             eqValue(true),
-            eqValue(Gender.MALE)
+            eqValue(Gender.MALE),
+            eqValue(Lang.KO)
         )
     }
 
@@ -118,6 +129,7 @@ class HomeOnAirLiveFacadeTest {
         creatorProfileImage: String? = "profile.png",
         beginDateTime: LocalDateTime = LocalDateTime.of(2026, 6, 26, 12, 30)
     ) = HomeLiveRecommendationRecord(
+        creatorMemberId = id + 100L,
         liveRoomId = id,
         creatorNickname = "creator-$id",
         creatorProfileImage = creatorProfileImage,

src/test/kotlin/kr/co/vividnext/sodalive/v2/chat/ChatRoomListControllerTest.kt

@@ -1,5 +1,7 @@
 package kr.co.vividnext.sodalive.v2.chat
 
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.v2.chat.controller.ChatRoomListController
 import kr.co.vividnext.sodalive.v2.chat.dto.ChatRoomListItemResponse
@@ -21,7 +23,7 @@ class ChatRoomListControllerTest {
     @BeforeEach
     fun setUp() {
         service = Mockito.mock(ChatRoomListService::class.java)
-        controller = ChatRoomListController(service)
+        controller = ChatRoomListController(service, LangContext())
     }
 
     @Test
@@ -45,12 +47,12 @@ class ChatRoomListControllerTest {
             hasMore = false,
             nextCursor = null
         )
-        Mockito.`when`(service.getRooms(member, "DM", "cursor", 10)).thenReturn(serviceResponse)
+        Mockito.`when`(service.getRooms(member, Lang.KO, "DM", "cursor", 10)).thenReturn(serviceResponse)
 
         val response = controller.getRooms(member = member, filter = "DM", cursor = "cursor", limit = 10)
 
         assertTrue(response.success)
         assertEquals(serviceResponse, response.data)
-        Mockito.verify(service).getRooms(member, "DM", "cursor", 10)
+        Mockito.verify(service).getRooms(member, Lang.KO, "DM", "cursor", 10)
     }
 }

src/test/kotlin/kr/co/vividnext/sodalive/v2/chat/ChatRoomListServiceTest.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.v2.chat
 
 import kr.co.vividnext.sodalive.chat.room.ChatMessageType
 import kr.co.vividnext.sodalive.chat.room.repository.ChatRoomRepository
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.v2.chat.dto.ChatRoomListQueryDto
 import kr.co.vividnext.sodalive.v2.chat.service.ChatRoomListService
@@ -55,7 +56,7 @@ class ChatRoomListServiceTest {
             )
         )
         Mockito.`when`(
-            dmRoomRepository.findDmChatListRooms(1L, null, null, null, false, PageRequest.of(0, 31))
+            dmRoomRepository.findDmChatListRooms(1L, null, null, null, false, Lang.KO, PageRequest.of(0, 31))
         ).thenReturn(
             listOf(
                 ChatRoomListQueryDto(
@@ -70,7 +71,7 @@ class ChatRoomListServiceTest {
             )
         )
 
-        val response = service.getRooms(member, filter = "ALL", cursor = null, limit = 30)
+        val response = service.getRooms(member, Lang.KO, filter = "ALL", cursor = null, limit = 30)
 
         assertFalse(response.hasMore)
         assertEquals(listOf("DM", "AI"), response.rooms.map { it.chatType })
@@ -85,7 +86,7 @@ class ChatRoomListServiceTest {
     fun shouldReturnOnlyDmRoomsWithVoicePreview() {
         val member = member(1L)
         Mockito.`when`(
-            dmRoomRepository.findDmChatListRooms(1L, null, null, null, false, PageRequest.of(0, 31))
+            dmRoomRepository.findDmChatListRooms(1L, null, null, null, false, Lang.KO, PageRequest.of(0, 31))
         ).thenReturn(
             listOf(
                 ChatRoomListQueryDto(
@@ -100,7 +101,7 @@ class ChatRoomListServiceTest {
             )
         )
 
-        val response = service.getRooms(member, filter = "DM", cursor = null, limit = 30)
+        val response = service.getRooms(member, Lang.KO, filter = "DM", cursor = null, limit = 30)
 
         assertEquals(1, response.rooms.size)
         assertEquals("DM", response.rooms[0].chatType)
@@ -128,7 +129,7 @@ class ChatRoomListServiceTest {
             aiRoomRepository.findAiChatListRooms(1L, null, null, null, false, PageRequest.of(0, 31))
         ).thenReturn(rows)
 
-        val response = service.getRooms(member, filter = "AI", cursor = null, limit = 30)
+        val response = service.getRooms(member, Lang.KO, filter = "AI", cursor = null, limit = 30)
 
         assertEquals(30, response.rooms.size)
         assertTrue(response.hasMore)
@@ -157,7 +158,7 @@ class ChatRoomListServiceTest {
             )
         )
         Mockito.`when`(
-            dmRoomRepository.findDmChatListRooms(1L, cursorAt, "DM", 20L, false, PageRequest.of(0, 31))
+            dmRoomRepository.findDmChatListRooms(1L, cursorAt, "DM", 20L, false, Lang.KO, PageRequest.of(0, 31))
         ).thenReturn(
             listOf(
                 ChatRoomListQueryDto(
@@ -181,7 +182,7 @@ class ChatRoomListServiceTest {
             )
         )
 
-        val response = service.getRooms(member, filter = "ALL", cursor = "2026-05-14T12:00:00:DM:20", limit = 30)
+        val response = service.getRooms(member, Lang.KO, filter = "ALL", cursor = "2026-05-14T12:00:00:DM:20", limit = 30)
 
         assertEquals(listOf(30L, 10L), response.rooms.map { it.roomId })
         assertEquals("https://cdn.test/profile/default-profile.png", response.rooms[0].targetImageUrl)
@@ -194,13 +195,13 @@ class ChatRoomListServiceTest {
         val pageable = PageRequest.of(0, 11)
         Mockito.`when`(aiRoomRepository.findAiChatListRooms(1L, null, null, null, true, pageable))
             .thenReturn(emptyList())
-        Mockito.`when`(dmRoomRepository.findDmChatListRooms(1L, null, null, null, true, pageable))
+        Mockito.`when`(dmRoomRepository.findDmChatListRooms(1L, null, null, null, true, Lang.KO, pageable))
             .thenReturn(emptyList())
 
-        service.getRooms(member, filter = "ALL", cursor = null, limit = 10, followedCreatorsOnly = true)
+        service.getRooms(member, Lang.KO, filter = "ALL", cursor = null, limit = 10, followedCreatorsOnly = true)
 
         Mockito.verify(aiRoomRepository).findAiChatListRooms(1L, null, null, null, true, pageable)
-        Mockito.verify(dmRoomRepository).findDmChatListRooms(1L, null, null, null, true, pageable)
+        Mockito.verify(dmRoomRepository).findDmChatListRooms(1L, null, null, null, true, Lang.KO, pageable)
     }
 
     private fun member(id: Long) = Member(password = "pw", nickname = "user").apply { this.id = id }

src/test/kotlin/kr/co/vividnext/sodalive/v2/content/all/application/MainContentAllQueryServiceTest.kt

@@ -2,7 +2,6 @@ package kr.co.vividnext.sodalive.v2.content.all.application
 
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
 import kr.co.vividnext.sodalive.i18n.Lang
-import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
@@ -27,7 +26,15 @@ class MainContentAllQueryServiceTest {
         val port = FakeMainContentAllQueryPort()
         val service = createService(port)
 
-        val tab = service.getContents(type = "AUDIO", sort = "POPULAR", dayOfWeek = "MON", page = 1, size = 20, member = null)
+        val tab = service.getContents(
+            type = "AUDIO",
+            sort = "POPULAR",
+            dayOfWeek = "MON",
+            page = 1,
+            size = 20,
+            member = null,
+            lang = Lang.EN
+        )
 
         assertEquals(MainContentAllType.AUDIO, tab.type)
         assertEquals("audio", port.lastListKind)
@@ -50,7 +57,15 @@ class MainContentAllQueryServiceTest {
         val port = FakeMainContentAllQueryPort()
         val service = createService(port)
 
-        val tab = service.getContents(type = "FREE", sort = "LATEST", dayOfWeek = null, page = 0, size = 20, member = null)
+        val tab = service.getContents(
+            type = "FREE",
+            sort = "LATEST",
+            dayOfWeek = null,
+            page = 0,
+            size = 20,
+            member = null,
+            lang = Lang.EN
+        )
 
         assertEquals(MainContentAllType.FREE, tab.type)
         assertEquals("audio", port.lastListKind)
@@ -69,7 +84,15 @@ class MainContentAllQueryServiceTest {
         val port = FakeMainContentAllQueryPort()
         val service = createService(port)
 
-        val tab = service.getContents(type = "POINT", sort = "PRICE_LOW", dayOfWeek = null, page = 0, size = 20, member = null)
+        val tab = service.getContents(
+            type = "POINT",
+            sort = "PRICE_LOW",
+            dayOfWeek = null,
+            page = 0,
+            size = 20,
+            member = null,
+            lang = Lang.EN
+        )
 
         assertEquals(MainContentAllType.POINT, tab.type)
         assertEquals("audio", port.lastListKind)
@@ -87,9 +110,9 @@ class MainContentAllQueryServiceTest {
     @DisplayName("SERIES는 요일을 전달하고 ORIGINAL은 original 필터와 dayOfWeek null을 전달한다")
     fun shouldQuerySeriesByType() {
         val seriesPort = FakeMainContentAllQueryPort()
-        val service = createService(seriesPort, lang = Lang.JA)
+        val service = createService(seriesPort)
 
-        val seriesTab = service.getContents("SERIES", "POPULAR", "MON", 0, 20, null)
+        val seriesTab = service.getContents("SERIES", "POPULAR", "MON", 0, 20, null, Lang.JA)
 
         assertEquals(MainContentAllType.SERIES, seriesTab.type)
         assertEquals("series", seriesPort.lastListKind)
@@ -100,7 +123,7 @@ class MainContentAllQueryServiceTest {
         val originalPort = FakeMainContentAllQueryPort()
         val originalService = createService(originalPort)
 
-        val originalTab = originalService.getContents("ORIGINAL", "POPULAR", "MON", 0, 20, null)
+        val originalTab = originalService.getContents("ORIGINAL", "POPULAR", "MON", 0, 20, null, Lang.EN)
 
         assertEquals(MainContentAllType.ORIGINAL, originalTab.type)
         assertEquals("series", originalPort.lastListKind)
@@ -112,7 +135,7 @@ class MainContentAllQueryServiceTest {
     @DisplayName("비회원은 성인 콘텐츠 비노출로 조회하고 회원은 preference 결과를 전달한다")
     fun shouldPassAdultVisibilityByMember() {
         val anonymousPort = FakeMainContentAllQueryPort()
-        createService(anonymousPort).getContents("AUDIO", null, null, null, null, null)
+        createService(anonymousPort).getContents("AUDIO", null, null, null, null, null, Lang.EN)
 
         assertEquals(null, anonymousPort.lastMemberId)
         assertFalse(anonymousPort.lastCanViewAdultContent)
@@ -127,7 +150,7 @@ class MainContentAllQueryServiceTest {
         val preferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
         Mockito.doReturn(true).`when`(preferenceService).canViewAdultContent(member)
 
-        createService(memberPort, preferenceService).getContents("AUDIO", null, null, null, null, member)
+        createService(memberPort, preferenceService).getContents("AUDIO", null, null, null, null, member, Lang.EN)
 
         assertEquals(10L, memberPort.lastMemberId)
         assertTrue(memberPort.lastCanViewAdultContent)
@@ -136,16 +159,12 @@ class MainContentAllQueryServiceTest {
 
     private fun createService(
         port: MainContentAllQueryPort,
-        preferenceService: MemberContentPreferenceService = Mockito.mock(MemberContentPreferenceService::class.java),
-        lang: Lang = Lang.EN
+        preferenceService: MemberContentPreferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
     ): MainContentAllQueryService {
-        val langContext = LangContext()
-        langContext.setLang(lang)
         return MainContentAllQueryService(
             queryPort = port,
             memberContentPreferenceService = preferenceService,
-            queryPolicy = MainContentAllQueryPolicy(),
-            langContext = langContext
+            queryPolicy = MainContentAllQueryPolicy()
         )
     }
 }
@@ -204,6 +223,7 @@ private class FakeMainContentAllQueryPort : MainContentAllQueryPort {
         lastOnlyPointAvailable = onlyPointAvailable
         return (1L..limit.toLong()).map { id ->
             MainContentAllAudio(
+                creatorMemberId = 10L,
                 audioContentId = id,
                 title = "audio-$id",
                 imageUrl = null,
@@ -253,6 +273,7 @@ private class FakeMainContentAllQueryPort : MainContentAllQueryPort {
         lastLocale = locale
         return listOf(
             MainContentAllSeries(
+                creatorMemberId = 10L,
                 seriesId = 1L,
                 title = "series",
                 coverImageUrl = null,

src/test/kotlin/kr/co/vividnext/sodalive/v2/content/ranking/adapter/out/persistence/DefaultAudioRankingSnapshotPersistenceAdapterTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.content.ranking.adapter.out.persistence
 
+import com.querydsl.jpa.impl.JPAQueryFactory
 import kr.co.vividnext.sodalive.configs.QueryDslConfig
 import kr.co.vividnext.sodalive.content.translation.ContentTranslation
 import kr.co.vividnext.sodalive.content.translation.ContentTranslationPayload
@@ -31,7 +32,11 @@ class DefaultAudioRankingSnapshotPersistenceAdapterTest @Autowired constructor(
     private val entityManager: EntityManager,
     private val entityManagerFactory: EntityManagerFactory
 ) {
-    private val adapter = DefaultAudioRankingSnapshotPersistenceAdapter(repository, contentTranslationRepository)
+    private val adapter = DefaultAudioRankingSnapshotPersistenceAdapter(
+        repository,
+        contentTranslationRepository,
+        JPAQueryFactory(entityManager)
+    )
 
     @Test
     @DisplayName("SQL NULL 번역 payload는 snapshot 제목으로 fallback한다")

src/test/kotlin/kr/co/vividnext/sodalive/v2/content/ranking/application/AudioRankingQueryServiceTest.kt

@@ -1,7 +1,6 @@
 package kr.co.vividnext.sodalive.v2.content.ranking.application
 
 import kr.co.vividnext.sodalive.i18n.Lang
-import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
 import kr.co.vividnext.sodalive.v2.content.ranking.domain.AudioRankingType
@@ -35,14 +34,11 @@ class AudioRankingQueryServiceTest {
             "en" to originalLatestSnapshots.map { it.copy(title = "en-title-${it.contentId}") },
             "ja" to originalLatestSnapshots.map { it.copy(title = "ja-title-${it.contentId}") }
         )
-        val langContext = LangContext().apply { setLang(Lang.EN) }
-        val service = service(snapshotPort, langContext = langContext)
+        val service = service(snapshotPort)
 
-        val english = service.getRankings(AudioRankingType.REVENUE, member = null)
-        langContext.setLang(Lang.JA)
-        val japanese = service.getRankings(AudioRankingType.REVENUE, member = null)
-        langContext.setLang(Lang.EN)
-        val englishAgain = service.getRankings(AudioRankingType.REVENUE, member = null)
+        val english = service.getRankings(AudioRankingType.REVENUE, member = null, lang = Lang.EN)
+        val japanese = service.getRankings(AudioRankingType.REVENUE, member = null, lang = Lang.JA)
+        val englishAgain = service.getRankings(AudioRankingType.REVENUE, member = null, lang = Lang.EN)
 
         assertEquals(listOf("en-title-2", "en-title-1"), english.items.map { it.title })
         assertEquals(listOf("ja-title-2", "ja-title-1"), japanese.items.map { it.title })
@@ -64,7 +60,8 @@ class AudioRankingQueryServiceTest {
         val method = AudioRankingQueryService::class.java.getDeclaredMethod(
             "getRankings",
             AudioRankingType::class.java,
-            Member::class.java
+            Member::class.java,
+            Lang::class.java
         )
 
         assertEquals(null, method.getAnnotation(Transactional::class.java))
@@ -84,7 +81,7 @@ class AudioRankingQueryServiceTest {
         )
         val service = service(snapshotPort)
 
-        val result = service.getRankings(AudioRankingType.REVENUE, member = null)
+        val result = service.getRankings(AudioRankingType.REVENUE, member = null, lang = Lang.KO)
 
         assertTrue(result.showRankChange)
         assertEquals(AudioRankingType.REVENUE, result.type)
@@ -106,7 +103,7 @@ class AudioRankingQueryServiceTest {
         snapshotPort.latestSnapshots = listOf(snapshot(contentId = 1L, rank = 1))
         val service = service(snapshotPort)
 
-        val result = service.getRankings(AudioRankingType.WEEKLY_POPULAR, member = null)
+        val result = service.getRankings(AudioRankingType.WEEKLY_POPULAR, member = null, lang = Lang.KO)
 
         assertFalse(result.showRankChange)
         assertEquals(listOf(1L), result.items.map { it.contentId })
@@ -116,7 +113,11 @@ class AudioRankingQueryServiceTest {
 
     @Test
     fun shouldReturnEmptyRankingWhenLatestSnapshotDoesNotExist() {
-        val result = service(FakeAudioRankingQuerySnapshotPort()).getRankings(AudioRankingType.LIKE_COUNT, member = null)
+        val result = service(FakeAudioRankingQuerySnapshotPort()).getRankings(
+            AudioRankingType.LIKE_COUNT,
+            member = null,
+            lang = Lang.KO
+        )
 
         assertFalse(result.showRankChange)
         assertEquals(AudioRankingType.LIKE_COUNT, result.type)
@@ -136,7 +137,7 @@ class AudioRankingQueryServiceTest {
             snapshot(contentId = 2L, rank = 2)
         )
 
-        val result = service(snapshotPort).getRankings(AudioRankingType.REVENUE, member = null)
+        val result = service(snapshotPort).getRankings(AudioRankingType.REVENUE, member = null, lang = Lang.KO)
 
         assertEquals(listOf(2L, 3L), result.items.map { it.contentId })
         assertEquals(listOf(1, 2), result.items.map { it.rank })
@@ -150,7 +151,7 @@ class AudioRankingQueryServiceTest {
         val member = Mockito.mock(Member::class.java)
         snapshotPort.latestSnapshots = listOf(snapshot(contentId = 1L, rank = 1, isAdult = true))
 
-        val result = service(snapshotPort, adultMember = member).getRankings(AudioRankingType.REVENUE, member)
+        val result = service(snapshotPort, adultMember = member).getRankings(AudioRankingType.REVENUE, member, Lang.KO)
 
         assertEquals(listOf(1L), result.items.map { it.contentId })
     }
@@ -170,7 +171,7 @@ class AudioRankingQueryServiceTest {
             snapshot(contentId = 1L, rank = 2, creatorMemberId = 101L)
         )
 
-        val result = service(snapshotPort, blockPort = blockPort).getRankings(AudioRankingType.REVENUE, member)
+        val result = service(snapshotPort, blockPort = blockPort).getRankings(AudioRankingType.REVENUE, member, Lang.KO)
 
         assertEquals(listOf(1L, 3L), result.items.map { it.contentId })
         assertEquals(listOf(1, 2), result.items.map { it.rank })
@@ -185,7 +186,11 @@ class AudioRankingQueryServiceTest {
         val blockPort = FakeAudioRankingBlockPort(blockedCreatorMemberIds = setOf(101L))
         snapshotPort.latestSnapshots = listOf(snapshot(contentId = 1L, rank = 1, creatorMemberId = 101L))
 
-        val result = service(snapshotPort, blockPort = blockPort).getRankings(AudioRankingType.REVENUE, member = null)
+        val result = service(snapshotPort, blockPort = blockPort).getRankings(
+            AudioRankingType.REVENUE,
+            member = null,
+            lang = Lang.KO
+        )
 
         assertEquals(listOf(1L), result.items.map { it.contentId })
         assertEquals(0, blockPort.callCount)
@@ -200,7 +205,11 @@ class AudioRankingQueryServiceTest {
             listOf(snapshot(contentId = 1L, rank = 1))
         )
 
-        val result = service(snapshotPort, jobService = jobService).getRankings(AudioRankingType.LIKE_COUNT, member = null)
+        val result = service(snapshotPort, jobService = jobService).getRankings(
+            AudioRankingType.LIKE_COUNT,
+            member = null,
+            lang = Lang.KO
+        )
 
         assertEquals(listOf(1L), result.items.map { it.contentId })
         assertEquals(2, snapshotPort.latestCallCount)
@@ -214,7 +223,11 @@ class AudioRankingQueryServiceTest {
         Mockito.doThrow(IllegalStateException("aggregate failed"))
             .`when`(jobService).refreshLastCompletedWeekByFallback(AudioRankingType.LIKE_COUNT)
 
-        val result = service(snapshotPort, jobService = jobService).getRankings(AudioRankingType.LIKE_COUNT, member = null)
+        val result = service(snapshotPort, jobService = jobService).getRankings(
+            AudioRankingType.LIKE_COUNT,
+            member = null,
+            lang = Lang.KO
+        )
 
         assertFalse(result.showRankChange)
         assertEquals(AudioRankingType.LIKE_COUNT, result.type)
@@ -230,7 +243,7 @@ class AudioRankingQueryServiceTest {
         val jobService = Mockito.mock(AudioRankingSnapshotJobService::class.java)
         snapshotPort.latestSnapshots = listOf(snapshot(contentId = 1L, rank = 1))
 
-        service(snapshotPort, jobService = jobService).getRankings(AudioRankingType.REVENUE, member = null)
+        service(snapshotPort, jobService = jobService).getRankings(AudioRankingType.REVENUE, member = null, lang = Lang.KO)
 
         Mockito.verify(jobService, Mockito.never()).refreshLastCompletedWeekByFallback(AudioRankingType.REVENUE)
     }
@@ -250,7 +263,7 @@ class AudioRankingQueryServiceTest {
             snapshot(contentId = 2L, rank = 3, creatorMemberId = 102L)
         )
 
-        val result = service(snapshotPort, blockPort = blockPort).getRankings(AudioRankingType.REVENUE, member)
+        val result = service(snapshotPort, blockPort = blockPort).getRankings(AudioRankingType.REVENUE, member, Lang.KO)
 
         assertEquals(setOf(101L, 102L, 999L), blockPort.creatorMemberIds)
         assertEquals(listOf(0, 0), result.items.map { it.rankChange })
@@ -261,8 +274,7 @@ class AudioRankingQueryServiceTest {
         snapshotPort: FakeAudioRankingQuerySnapshotPort,
         adultMember: Member? = null,
         blockPort: AudioRankingBlockPort = FakeAudioRankingBlockPort(),
-        jobService: AudioRankingSnapshotJobService = Mockito.mock(AudioRankingSnapshotJobService::class.java),
-        langContext: LangContext = LangContext()
+        jobService: AudioRankingSnapshotJobService = Mockito.mock(AudioRankingSnapshotJobService::class.java)
     ): AudioRankingQueryService {
         val memberContentPreferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
         if (adultMember != null) {
@@ -270,7 +282,6 @@ class AudioRankingQueryServiceTest {
         }
         return AudioRankingQueryService(
             snapshotPort = snapshotPort,
-            langContext = langContext,
             memberContentPreferenceService = memberContentPreferenceService,
             blockPort = blockPort,
             jobService = jobService,

src/test/kotlin/kr/co/vividnext/sodalive/v2/content/recommendation/application/AudioRecommendationQueryServiceTest.kt

@@ -1,7 +1,6 @@
 package kr.co.vividnext.sodalive.v2.content.recommendation.application
 
 import kr.co.vividnext.sodalive.i18n.Lang
-import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
@@ -20,12 +19,10 @@ class AudioRecommendationQueryServiceTest {
     private val queryPort = Mockito.mock(AudioRecommendationQueryPort::class.java)
     private val preferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
     private val fallbackService = Mockito.mock(AudioRecommendationSnapshotFallbackService::class.java)
-    private val langContext = LangContext().apply { setLang(Lang.EN) }
     private val service = AudioRecommendationQueryService(
         queryPort,
         preferenceService,
-        fallbackService,
-        langContext
+        fallbackService
     )
 
     @Test
@@ -63,7 +60,7 @@ class AudioRecommendationQueryServiceTest {
             emptyList()
         )
 
-        val recommendations = service.getRecommendations(null)
+        val recommendations = service.getRecommendations(null, Lang.EN)
 
         assertEquals(0, recommendations.mostCommentedAudios.size)
         verifyFallback(
@@ -134,7 +131,7 @@ class AudioRecommendationQueryServiceTest {
             listOf(snapshot(RecommendedSectionType.RECOMMENDED_AUDIO_SAFE, 2L))
         )
 
-        service.getRecommendations(null)
+        service.getRecommendations(null, Lang.EN)
 
         verifyFallback(
             RecommendedSectionType.MOST_COMMENTED_AUDIO_SAFE,
@@ -156,7 +153,7 @@ class AudioRecommendationQueryServiceTest {
             listOf(snapshot(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 10L))
         )
 
-        service.getRecommendations(member)
+        service.getRecommendations(member, Lang.EN)
 
         Mockito.verify(preferenceService).canViewAdultContent(member)
         Mockito.verify(queryPort).findBanners(AudioRecommendationQueryService.BANNER_LIMIT, member.id, true, Lang.JA)
@@ -180,7 +177,7 @@ class AudioRecommendationQueryServiceTest {
             listOf(snapshot(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 10L))
         )
 
-        service.getRecommendations(member)
+        service.getRecommendations(member, Lang.EN)
 
         verifyFallback(
             RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL,
@@ -209,7 +206,7 @@ class AudioRecommendationQueryServiceTest {
                 eqValue(Lang.EN.code)
             )
 
-        val result = service.findNewAndHotAudios(member, offset = 20L, limit = 21)
+        val result = service.findNewAndHotAudios(member, offset = 20L, limit = 21, lang = Lang.EN)
 
         assertEquals(listOf(3L, 4L, 5L), result.map { it.audioContentId })
         verifyFallback(RecommendedSectionType.NEW_AND_HOT_AUDIO_ALL, 20L, 21)
@@ -261,6 +258,7 @@ class AudioRecommendationQueryServiceTest {
 
     private fun audioCard(id: Long): AudioCard {
         return AudioCard(
+            creatorMemberId = id + 100L,
             audioContentId = id,
             title = "audio$id",
             duration = "00:01",

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

@@ -14,6 +14,7 @@ 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.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.block.BlockMember
@@ -62,7 +63,7 @@ class DefaultCreatorChannelAudioQueryRepositoryTest @Autowired constructor(
         saveBlock(creator, viewer)
         flushAndClear()
 
-        val record = repository.findCreator(creator.id!!, viewer.id!!)
+        val record = repository.findCreator(creator.id!!, viewer.id!!, Lang.KO)
         val themes = repository.findAudioThemes(creator.id!!, now, canViewAdultContent = false, "en")
 
         assertEquals(creator.id, record!!.creatorId)

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/audio/application/CreatorChannelAudioQueryServiceTest.kt

@@ -45,7 +45,8 @@ class CreatorChannelAudioQueryServiceTest {
             themeId = 999L,
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.EN
         )
 
         assertEquals(ContentSort.LATEST, tab.sort)
@@ -78,7 +79,7 @@ class CreatorChannelAudioQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 10L)
 
-        val tab = service.getAudioTab(1L, viewer, null, null, null, null, LocalDateTime.of(2026, 6, 19, 10, 0))
+        val tab = service.getAudioTab(1L, viewer, null, null, null, null, LocalDateTime.of(2026, 6, 19, 10, 0), Lang.EN)
 
         assertEquals(0.0, tab.purchasedAudioContentRate)
     }
@@ -91,7 +92,7 @@ class CreatorChannelAudioQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getAudioTab(1L, viewer, null, null, null, null, LocalDateTime.of(2026, 6, 19, 10, 0))
+            service.getAudioTab(1L, viewer, null, null, null, null, LocalDateTime.of(2026, 6, 19, 10, 0), Lang.EN)
         }
 
         assertEquals("member.validation.user_not_found", exception.messageKey)
@@ -105,7 +106,7 @@ class CreatorChannelAudioQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getAudioTab(1L, viewer, null, null, null, null, LocalDateTime.of(2026, 6, 19, 10, 0))
+            service.getAudioTab(1L, viewer, null, null, null, null, LocalDateTime.of(2026, 6, 19, 10, 0), Lang.EN)
         }
 
         assertEquals("member.validation.creator_not_found", exception.messageKey)
@@ -119,7 +120,7 @@ class CreatorChannelAudioQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getAudioTab(1L, viewer, null, null, null, null, LocalDateTime.of(2026, 6, 19, 10, 0))
+            service.getAudioTab(1L, viewer, null, null, null, null, LocalDateTime.of(2026, 6, 19, 10, 0), Lang.EN)
         }
 
         assertNull(exception.messageKey)
@@ -191,7 +192,7 @@ private class FakeCreatorChannelAudioQueryPort : CreatorChannelAudioQueryPort {
     var themeCanViewAdultContent: Boolean? = null
     var themeLocale: String? = null
 
-    override fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelAudioCreatorRecord? = creator
+    override fun findCreator(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelAudioCreatorRecord? = creator
 
     override fun existsBlockedBetween(viewerId: Long, creatorId: Long): Boolean = blocked
 

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

@@ -7,6 +7,7 @@ import kr.co.vividnext.sodalive.configs.QueryDslConfig
 import kr.co.vividnext.sodalive.explorer.profile.creatorCommunity.CreatorCommunity
 import kr.co.vividnext.sodalive.explorer.profile.creatorCommunity.comment.CreatorCommunityComment
 import kr.co.vividnext.sodalive.explorer.profile.creatorCommunity.like.CreatorCommunityLike
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberKind
 import kr.co.vividnext.sodalive.member.MemberRole
@@ -46,8 +47,8 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
         val inactiveCreator = saveMember("inactive-creator", MemberRole.CREATOR, isActive = false)
         flushAndClear()
 
-        val activeRecord = repository.findCreator(activeCreator.id!!, viewer.id!!)
-        val inactiveRecord = repository.findCreator(inactiveCreator.id!!, viewer.id!!)
+        val activeRecord = repository.findCreator(activeCreator.id!!, viewer.id!!, Lang.KO)
+        val inactiveRecord = repository.findCreator(inactiveCreator.id!!, viewer.id!!, Lang.KO)
 
         assertNotNull(activeRecord)
         assertEquals(activeCreator.id, activeRecord!!.creatorId)
@@ -92,7 +93,8 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
             viewerId = viewer.id!!,
             canViewAdultContent = false,
             offset = 0,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
         val visiblePostIds = visiblePosts.map { it.postId }
 
@@ -125,14 +127,16 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
             viewerId = viewer.id!!,
             canViewAdultContent = true,
             offset = 0,
-            limit = 3
+            limit = 3,
+            lang = Lang.KO
         )
         val secondPage: List<CreatorChannelCommunityPostRecord> = repository.findCommunityPosts(
             creatorId = creator.id!!,
             viewerId = viewer.id!!,
             canViewAdultContent = true,
             offset = 3,
-            limit = 2
+            limit = 2,
+            lang = Lang.KO
         )
 
         assertEquals(
@@ -168,7 +172,8 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
             viewerId = viewer.id!!,
             canViewAdultContent = true,
             offset = 0,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
         val record = records.single { it.postId == post.id }
         val otherMemberOnlyLikedRecord = records.single { it.postId == otherMemberOnlyLikedPost.id }
@@ -203,21 +208,24 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
             viewerId = viewer.id!!,
             canViewAdultContent = true,
             offset = 0,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         ).single()
         val writerRecord = repository.findCommunityPosts(
             creatorId = creator.id!!,
             viewerId = secretWriter.id!!,
             canViewAdultContent = true,
             offset = 0,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         ).single()
         val creatorRecord = repository.findCommunityPosts(
             creatorId = creator.id!!,
             viewerId = creator.id!!,
             canViewAdultContent = true,
             offset = 0,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         ).single()
 
         assertEquals(1, viewerRecord.commentCount)
@@ -247,7 +255,8 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
             viewerId = viewer.id!!,
             canViewAdultContent = true,
             offset = 0,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
         val recordsById = records.associateBy { it.postId }
 
@@ -271,7 +280,8 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
             viewerId = creator.id!!,
             canViewAdultContent = true,
             offset = 0,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         ).single()
 
         assertTrue(record.existOrdered)
@@ -297,14 +307,16 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
             viewerId = viewer.id!!,
             isPinned = true,
             canViewAdultContent = false,
-            limit = 3
+            limit = 3,
+            lang = Lang.KO
         )
         val normalPosts: List<CreatorChannelCommunityPostRecord> = repository.findHomeCommunityPosts(
             creatorId = creator.id!!,
             viewerId = viewer.id!!,
             isPinned = false,
             canViewAdultContent = false,
-            limit = 3
+            limit = 3,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(pinned.id), pinnedPosts.map { it.postId })
@@ -337,14 +349,16 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
             viewerId = viewer.id!!,
             isPinned = false,
             canViewAdultContent = true,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
         val adultBlockedPosts: List<CreatorChannelCommunityPostRecord> = repository.findHomeCommunityPosts(
             creatorId = creator.id!!,
             viewerId = viewer.id!!,
             isPinned = false,
             canViewAdultContent = false,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
 
         assertTrue(inactivePurchasedPost.id in adultAllowedPosts.map { it.postId })
@@ -368,9 +382,19 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
         saveCommunityComment(viewer, paidPost, isActive = true)
         flushAndClear()
 
-        val record = repository.findCommunityPost(paidPost.id!!, viewer.id!!, canViewAdultContent = true)
-        val blockedAdultRecord = repository.findCommunityPost(adultPost.id!!, viewer.id!!, canViewAdultContent = false)
-        val inactiveRecord = repository.findCommunityPost(inactivePost.id!!, viewer.id!!, canViewAdultContent = true)
+        val record = repository.findCommunityPost(paidPost.id!!, viewer.id!!, canViewAdultContent = true, lang = Lang.KO)
+        val blockedAdultRecord = repository.findCommunityPost(
+            adultPost.id!!,
+            viewer.id!!,
+            canViewAdultContent = false,
+            lang = Lang.KO
+        )
+        val inactiveRecord = repository.findCommunityPost(
+            inactivePost.id!!,
+            viewer.id!!,
+            canViewAdultContent = true,
+            lang = Lang.KO
+        )
 
         assertNotNull(record)
         assertEquals(paidPost.id, record!!.postId)
@@ -412,8 +436,15 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
 
         val viewerCount = repository.countCommunityComments(post.id!!, viewer.id!!, creator.id!!)
         val creatorCount = repository.countCommunityComments(post.id!!, creator.id!!, creator.id!!)
-        val comments = repository.findCommunityComments(post.id!!, viewer.id!!, creator.id!!, offset = 0, limit = 10)
-        val latestReplies = repository.findLatestRepliesByCommentIds(comments.map { it.commentId }, viewer.id!!)
+        val comments = repository.findCommunityComments(
+            post.id!!,
+            viewer.id!!,
+            creator.id!!,
+            offset = 0,
+            limit = 10,
+            lang = Lang.KO
+        )
+        val latestReplies = repository.findLatestRepliesByCommentIds(comments.map { it.commentId }, viewer.id!!, Lang.KO)
 
         assertEquals(2, viewerCount)
         assertEquals(4, creatorCount)
@@ -448,7 +479,7 @@ class DefaultCreatorChannelCommunityQueryRepositoryTest @Autowired constructor(
         val invisibleSecretContext = repository.findRootCommentContext(secretRoot.id!!, viewer.id!!, canViewAdultContent = true)
         val replyContext = repository.findRootCommentContext(newReply.id!!, viewer.id!!, canViewAdultContent = true)
         val count = repository.countCommunityReplies(root.id!!, viewer.id!!)
-        val replies = repository.findCommunityReplies(root.id!!, viewer.id!!, offset = 0, limit = 10)
+        val replies = repository.findCommunityReplies(root.id!!, viewer.id!!, offset = 0, limit = 10, lang = Lang.KO)
 
         assertNotNull(context)
         assertEquals(post.id, context!!.postId)

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/community/application/CreatorChannelCommunityQueryServiceTest.kt

@@ -47,7 +47,8 @@ class CreatorChannelCommunityQueryServiceTest {
             viewer = viewer,
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.EN
         )
 
         assertEquals(60, tab.communityPostCount)
@@ -72,7 +73,7 @@ class CreatorChannelCommunityQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getCommunityTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0))
+            service.getCommunityTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
         }
 
         assertEquals("member.validation.user_not_found", exception.messageKey)
@@ -86,7 +87,7 @@ class CreatorChannelCommunityQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getCommunityTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0))
+            service.getCommunityTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
         }
 
         assertEquals("member.validation.creator_not_found", exception.messageKey)
@@ -100,7 +101,7 @@ class CreatorChannelCommunityQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getCommunityTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0))
+            service.getCommunityTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
         }
 
         assertNull(exception.messageKey)
@@ -129,7 +130,7 @@ class CreatorChannelCommunityQueryServiceTest {
         val service = createService(port, audioContentCloudFront)
         val viewer = createMember(id = 10L)
 
-        val posts = service.getCommunityTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0))
+        val posts = service.getCommunityTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
             .communityPosts
 
         assertEquals("https://cdn.test/image/1.png", posts[0].imageUrl)
@@ -165,7 +166,8 @@ class CreatorChannelCommunityQueryServiceTest {
             viewerId = 10L,
             isPinned = true,
             canViewAdultContent = false,
-            limit = 3
+            limit = 3,
+            lang = Lang.KO
         )
 
         assertEquals(1, posts.size)
@@ -203,7 +205,7 @@ class CreatorChannelCommunityQueryServiceTest {
                 )
             )
 
-        val posts = service.getCommunityTab(1L, createMember(id = 10L), 0, 20).communityPosts
+        val posts = service.getCommunityTab(1L, createMember(id = 10L), 0, 20, lang = Lang.EN).communityPosts
 
         assertEquals(
             listOf(
@@ -230,7 +232,7 @@ class CreatorChannelCommunityQueryServiceTest {
         val returnedPostIds = (1L..50L).toList()
         Mockito.`when`(translationService.findDisplayContents(returnedPostIds, "en")).thenReturn(emptyMap())
 
-        val tab = service.getCommunityTab(1L, createMember(id = 10L), page = 0, size = 50)
+        val tab = service.getCommunityTab(1L, createMember(id = 10L), page = 0, size = 50, lang = Lang.EN)
 
         assertEquals(50, tab.communityPosts.size)
         assertTrue(tab.hasNext)
@@ -248,13 +250,13 @@ class CreatorChannelCommunityQueryServiceTest {
         Mockito.`when`(translationService.findDisplayContents(listOf(21L), "en"))
             .thenReturn(mapOf(21L to CreatorCommunityDisplayContent("translated pinned", true)))
 
-        val pinnedPosts = service.findHomeCommunityPosts(1L, 10L, true, false, 3)
+        val pinnedPosts = service.findHomeCommunityPosts(1L, 10L, true, false, 3, Lang.EN)
 
         port.homeCommunityPosts = listOf(communityPostRecord(22L, price = 0).copy(content = "source normal"))
         Mockito.`when`(translationService.findDisplayContents(listOf(22L), "en"))
             .thenReturn(mapOf(22L to CreatorCommunityDisplayContent("translated normal", true)))
 
-        val normalPosts = service.findHomeCommunityPosts(1L, 10L, false, false, 3)
+        val normalPosts = service.findHomeCommunityPosts(1L, 10L, false, false, 3, Lang.EN)
 
         assertEquals("translated pinned", pinnedPosts.single().content)
         assertEquals("translated normal", normalPosts.single().content)
@@ -275,7 +277,7 @@ class CreatorChannelCommunityQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 10L)
 
-        val detail = service.getCommunityPostDetail(1L, viewer, LocalDateTime.of(2026, 7, 6, 10, 0))
+        val detail = service.getCommunityPostDetail(1L, viewer, LocalDateTime.of(2026, 7, 6, 10, 0), Lang.KO)
 
         assertEquals(1L, detail.post.postId)
         assertEquals(true, detail.post.isLiked)
@@ -298,7 +300,7 @@ class CreatorChannelCommunityQueryServiceTest {
         Mockito.`when`(translationService.findDisplayContents(listOf(1L), "en"))
             .thenReturn(mapOf(1L to CreatorCommunityDisplayContent("content-1", true)))
 
-        service.getCommunityPostDetail(1L, createMember(id = 10L), LocalDateTime.of(2026, 7, 6, 10, 0))
+        service.getCommunityPostDetail(1L, createMember(id = 10L), LocalDateTime.of(2026, 7, 6, 10, 0), Lang.KO)
 
         Mockito.verify(translationService, Mockito.never()).requestTranslations(1L, "en")
     }
@@ -311,7 +313,14 @@ class CreatorChannelCommunityQueryServiceTest {
         }
         val service = createService(port)
 
-        val comments = service.getCommunityComments(1L, createMember(id = 10L), -1, 100, LocalDateTime.of(2026, 7, 6, 10, 0))
+        val comments = service.getCommunityComments(
+            1L,
+            createMember(id = 10L),
+            -1,
+            100,
+            LocalDateTime.of(2026, 7, 6, 10, 0),
+            Lang.KO
+        )
 
         assertEquals(0, comments.commentCount)
         assertEquals(0, comments.comments.size)
@@ -332,7 +341,14 @@ class CreatorChannelCommunityQueryServiceTest {
         }
         val service = createService(port)
 
-        val comments = service.getCommunityComments(1L, createMember(id = 10L), -1, 100, LocalDateTime.of(2026, 7, 6, 10, 0))
+        val comments = service.getCommunityComments(
+            1L,
+            createMember(id = 10L),
+            -1,
+            100,
+            LocalDateTime.of(2026, 7, 6, 10, 0),
+            Lang.KO
+        )
 
         assertEquals(0L, port.commentListOffset)
         assertEquals(51, port.commentListLimit)
@@ -356,7 +372,14 @@ class CreatorChannelCommunityQueryServiceTest {
         }
         val service = createService(port)
 
-        val replies = service.getCommunityReplies(1L, createMember(id = 10L), -1, 100, LocalDateTime.of(2026, 7, 6, 10, 0))
+        val replies = service.getCommunityReplies(
+            1L,
+            createMember(id = 10L),
+            -1,
+            100,
+            LocalDateTime.of(2026, 7, 6, 10, 0),
+            Lang.KO
+        )
 
         assertEquals(51, replies.replyCount)
         assertEquals(50, replies.replies.size)
@@ -373,7 +396,7 @@ class CreatorChannelCommunityQueryServiceTest {
         val service = createService(port)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getCommunityReplies(1L, createMember(id = 10L), null, null, LocalDateTime.of(2026, 7, 6, 10, 0))
+            service.getCommunityReplies(1L, createMember(id = 10L), null, null, LocalDateTime.of(2026, 7, 6, 10, 0), Lang.KO)
         }
 
         assertEquals("creator.community.invalid_request_retry", exception.messageKey)
@@ -389,7 +412,14 @@ class CreatorChannelCommunityQueryServiceTest {
         }
         val service = createService(port)
 
-        val replies = service.getCommunityReplies(1L, createMember(id = 10L), null, null, LocalDateTime.of(2026, 7, 6, 10, 0))
+        val replies = service.getCommunityReplies(
+            1L,
+            createMember(id = 10L),
+            null,
+            null,
+            LocalDateTime.of(2026, 7, 6, 10, 0),
+            Lang.KO
+        )
 
         assertEquals(0, replies.replyCount)
         assertEquals(0, replies.replies.size)
@@ -484,7 +514,7 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
     var homeCanViewAdultContent: Boolean? = null
     var homeLimit: Int? = null
 
-    override fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelCommunityCreatorRecord? = creator
+    override fun findCreator(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelCommunityCreatorRecord? = creator
 
     override fun existsBlockedBetween(viewerId: Long, creatorId: Long): Boolean = blocked
 
@@ -502,7 +532,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
         viewerId: Long,
         canViewAdultContent: Boolean,
         offset: Long,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ): List<CreatorChannelCommunityPostRecord> {
         listCanViewAdultContent = canViewAdultContent
         listOffset = offset
@@ -515,7 +546,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
         viewerId: Long,
         isPinned: Boolean,
         canViewAdultContent: Boolean,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ): List<CreatorChannelCommunityPostRecord> {
         homeCreatorId = creatorId
         homeViewerId = viewerId
@@ -528,7 +560,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
     override fun findCommunityPost(
         postId: Long,
         viewerId: Long,
-        canViewAdultContent: Boolean
+        canViewAdultContent: Boolean,
+        lang: Lang
     ): CreatorChannelCommunityPostRecord? = communityPost
 
     override fun countCommunityComments(postId: Long, viewerId: Long, creatorId: Long): Int = communityCommentCount
@@ -538,7 +571,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
         viewerId: Long,
         creatorId: Long,
         offset: Long,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ): List<CreatorChannelCommunityCommentRecord> {
         commentListCalled = true
         commentListOffset = offset
@@ -548,7 +582,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
 
     override fun findLatestRepliesByCommentIds(
         commentIds: List<Long>,
-        viewerId: Long
+        viewerId: Long,
+        lang: Lang
     ): List<CreatorChannelCommunityCommentRecord> {
         latestReplyCommentIds = commentIds
         return latestReplies
@@ -566,7 +601,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
         commentId: Long,
         viewerId: Long,
         offset: Long,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ): List<CreatorChannelCommunityCommentRecord> {
         replyListOffset = offset
         replyListLimit = limit

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

@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.v2.creator.channel.donation.adapter.out.persist
 import com.querydsl.jpa.impl.JPAQueryFactory
 import kr.co.vividnext.sodalive.configs.QueryDslConfig
 import kr.co.vividnext.sodalive.explorer.profile.channelDonation.ChannelDonationMessage
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.DonationRankingPeriod
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
@@ -48,9 +49,9 @@ class DefaultCreatorChannelDonationQueryRepositoryTest @Autowired constructor(
         val nonCreator = saveMember("donation-non-creator", MemberRole.USER)
         flushAndClear()
 
-        val creatorRecord = repository.findCreator(creator.id!!, viewer.id!!)
-        val inactiveRecord = repository.findCreator(inactiveCreator.id!!, viewer.id!!)
-        val nonCreatorRecord = repository.findCreator(nonCreator.id!!, viewer.id!!)
+        val creatorRecord = repository.findCreator(creator.id!!, viewer.id!!, Lang.KO)
+        val inactiveRecord = repository.findCreator(inactiveCreator.id!!, viewer.id!!, Lang.KO)
+        val nonCreatorRecord = repository.findCreator(nonCreator.id!!, viewer.id!!, Lang.KO)
 
         assertNotNull(creatorRecord)
         assertEquals(creator.id, creatorRecord!!.creatorId)
@@ -91,7 +92,7 @@ class DefaultCreatorChannelDonationQueryRepositoryTest @Autowired constructor(
         flushAndClear()
 
         val count = repository.countChannelDonations(creator.id!!, creator.id!!, now)
-        val records = repository.findChannelDonations(creator.id!!, creator.id!!, now, offset = 0, limit = 10)
+        val records = repository.findChannelDonations(creator.id!!, creator.id!!, now, offset = 0, limit = 10, lang = Lang.KO)
 
         assertEquals(2, count)
         assertEquals(listOf(secret.can, monthStart.can), records.map { it.can })
@@ -121,7 +122,7 @@ class DefaultCreatorChannelDonationQueryRepositoryTest @Autowired constructor(
         flushAndClear()
 
         val count = repository.countChannelDonations(creator.id!!, viewer.id!!, now)
-        val records = repository.findChannelDonations(creator.id!!, viewer.id!!, now, offset = 0, limit = 10)
+        val records = repository.findChannelDonations(creator.id!!, viewer.id!!, now, offset = 0, limit = 10, lang = Lang.KO)
 
         assertEquals(2, count)
         assertEquals(listOf(ownSecretDonation.can, publicDonation.can), records.map { it.can })
@@ -141,7 +142,7 @@ class DefaultCreatorChannelDonationQueryRepositoryTest @Autowired constructor(
         saveDonation(creator, donor, 300, sameCreatedAt.plusMinutes(1), additionalMessage = "newest")
         flushAndClear()
 
-        val records = repository.findChannelDonations(creator.id!!, viewer.id!!, now, offset = 1, limit = 2)
+        val records = repository.findChannelDonations(creator.id!!, viewer.id!!, now, offset = 1, limit = 2, lang = Lang.KO)
 
         assertEquals(listOf(second.can, first.can), records.map { it.can })
     }

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/donation/application/CreatorChannelDonationQueryServiceTest.kt

@@ -1,7 +1,7 @@
 package kr.co.vividnext.sodalive.v2.creator.channel.donation.application
 
 import kr.co.vividnext.sodalive.common.SodaException
-import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.DonationRankingPeriod
 import kr.co.vividnext.sodalive.member.Member
@@ -34,7 +34,8 @@ class CreatorChannelDonationQueryServiceTest {
                 viewer = createMember(VIEWER_ID),
                 page = 0,
                 size = 20,
-                now = NOW
+                now = NOW,
+                lang = Lang.KO
             )
         }
 
@@ -55,7 +56,8 @@ class CreatorChannelDonationQueryServiceTest {
                 viewer = createMember(VIEWER_ID),
                 page = 0,
                 size = 20,
-                now = NOW
+                now = NOW,
+                lang = Lang.KO
             )
         }
 
@@ -74,7 +76,8 @@ class CreatorChannelDonationQueryServiceTest {
                 viewer = createMember(VIEWER_ID),
                 page = 0,
                 size = 20,
-                now = NOW
+                now = NOW,
+                lang = Lang.KO
             )
         }
 
@@ -97,7 +100,8 @@ class CreatorChannelDonationQueryServiceTest {
             viewer = createMember(VIEWER_ID),
             page = -1,
             size = 10,
-            now = NOW
+            now = NOW,
+            lang = Lang.KO
         )
 
         assertEquals(0L, queryPort.lastFindDonationRequest?.offset)
@@ -138,7 +142,8 @@ class CreatorChannelDonationQueryServiceTest {
             viewer = createMember(VIEWER_ID),
             page = 0,
             size = 20,
-            now = NOW
+            now = NOW,
+            lang = Lang.KO
         )
 
         assertEquals("donor", tab.donations[0].nickname)
@@ -163,7 +168,8 @@ class CreatorChannelDonationQueryServiceTest {
             viewer = createMember(CREATOR_ID),
             page = 0,
             size = 20,
-            now = NOW
+            now = NOW,
+            lang = Lang.KO
         )
 
         assertEquals(RankingRequest(CREATOR_ID, DonationRankingPeriod.WEEKLY, true), rankingPort.requests.single())
@@ -186,7 +192,7 @@ class CreatorChannelDonationQueryServiceTest {
                 )
             ),
             rankingPort = weeklyRankingPort
-        ).getDonationTab(CREATOR_ID, createMember(VIEWER_ID), 0, 20, NOW)
+        ).getDonationTab(CREATOR_ID, createMember(VIEWER_ID), 0, 20, NOW, Lang.KO)
 
         val cumulativeRankingPort = FakeDonationRankingPort()
         createService(
@@ -197,7 +203,7 @@ class CreatorChannelDonationQueryServiceTest {
                 )
             ),
             rankingPort = cumulativeRankingPort
-        ).getDonationTab(CREATOR_ID, createMember(VIEWER_ID), 0, 20, NOW)
+        ).getDonationTab(CREATOR_ID, createMember(VIEWER_ID), 0, 20, NOW, Lang.KO)
 
         assertEquals(RankingRequest(CREATOR_ID, DonationRankingPeriod.WEEKLY, false), weeklyRankingPort.requests.single())
         assertEquals(RankingRequest(CREATOR_ID, DonationRankingPeriod.CUMULATIVE, false), cumulativeRankingPort.requests.single())
@@ -214,7 +220,7 @@ class CreatorChannelDonationQueryServiceTest {
             rankingPort = rankingPort
         )
 
-        service.getDonationTab(CREATOR_ID, createMember(VIEWER_ID), 0, 20, NOW)
+        service.getDonationTab(CREATOR_ID, createMember(VIEWER_ID), 0, 20, NOW, Lang.KO)
 
         assertEquals(RankingRequest(CREATOR_ID, DonationRankingPeriod.CUMULATIVE, false), rankingPort.requests.single())
     }
@@ -233,7 +239,7 @@ class CreatorChannelDonationQueryServiceTest {
         val rankingPort = FakeDonationRankingPort()
         val service = createService(queryPort = queryPort, rankingPort = rankingPort)
 
-        val tab = service.getDonationTab(CREATOR_ID, createMember(VIEWER_ID), 0, 20, NOW)
+        val tab = service.getDonationTab(CREATOR_ID, createMember(VIEWER_ID), 0, 20, NOW, Lang.KO)
 
         assertEquals(emptyList<RankingRequest>(), rankingPort.requests)
         assertEquals(emptyList<Any>(), tab.rankings)
@@ -255,7 +261,6 @@ class CreatorChannelDonationQueryServiceTest {
             rankingPort = rankingPort,
             queryPolicy = CreatorChannelDonationQueryPolicy(),
             messageSource = SodaMessageSource(),
-            langContext = LangContext(),
             cloudFrontHost = "https://cdn.test"
         )
     }
@@ -282,6 +287,7 @@ class CreatorChannelDonationQueryServiceTest {
         createdAt: LocalDateTime = NOW
     ): CreatorChannelDonationRecord {
         return CreatorChannelDonationRecord(
+            memberId = VIEWER_ID,
             nickname = nickname,
             profileImagePath = profileImagePath,
             can = can,
@@ -319,7 +325,7 @@ class CreatorChannelDonationQueryServiceTest {
         var lastFindDonationRequest: FindDonationRequest? = null
             private set
 
-        override fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelDonationCreatorRecord? {
+        override fun findCreator(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelDonationCreatorRecord? {
             return creator
         }
 
@@ -337,7 +343,8 @@ class CreatorChannelDonationQueryServiceTest {
             viewerId: Long,
             now: LocalDateTime,
             offset: Long,
-            limit: Int
+            limit: Int,
+            lang: Lang
         ): List<CreatorChannelDonationRecord> {
             lastFindDonationRequest = FindDonationRequest(creatorId, viewerId, now, offset, limit)
             return donations

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/donation/domain/CreatorChannelDonationQueryPolicyTest.kt

@@ -78,6 +78,7 @@ class CreatorChannelDonationQueryPolicyTest {
             donationCan = 100
         )
         val donation = CreatorChannelDonation(
+            memberId = 10L,
             nickname = "donor",
             profileImageUrl = "https://cdn.test/donor.png",
             can = 50,
@@ -99,6 +100,7 @@ class CreatorChannelDonationQueryPolicyTest {
             donationRankingPeriod = DonationRankingPeriod.CUMULATIVE
         )
         val donationRecord = CreatorChannelDonationRecord(
+            memberId = 10L,
             nickname = "donor",
             profileImagePath = null,
             can = 50,

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

@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.v2.creator.channel.fantalk.adapter.out.persiste
 import com.querydsl.jpa.impl.JPAQueryFactory
 import kr.co.vividnext.sodalive.configs.QueryDslConfig
 import kr.co.vividnext.sodalive.explorer.profile.CreatorCheers
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.block.BlockMember
@@ -41,9 +42,9 @@ class DefaultCreatorChannelFanTalkQueryRepositoryTest @Autowired constructor(
         val nonCreator = saveMember("fantalk-non-creator", MemberRole.USER)
         flushAndClear()
 
-        val activeRecord = repository.findCreator(activeCreator.id!!, viewer.id!!)
-        val inactiveRecord = repository.findCreator(inactiveCreator.id!!, viewer.id!!)
-        val nonCreatorRecord = repository.findCreator(nonCreator.id!!, viewer.id!!)
+        val activeRecord = repository.findCreator(activeCreator.id!!, viewer.id!!, Lang.KO)
+        val inactiveRecord = repository.findCreator(inactiveCreator.id!!, viewer.id!!, Lang.KO)
+        val nonCreatorRecord = repository.findCreator(nonCreator.id!!, viewer.id!!, Lang.KO)
 
         assertNotNull(activeRecord)
         assertEquals(activeCreator.id, activeRecord!!.creatorId)
@@ -90,8 +91,8 @@ class DefaultCreatorChannelFanTalkQueryRepositoryTest @Autowired constructor(
         flushAndClear()
 
         val count = repository.countFanTalks(creator.id!!, viewer.id!!)
-        val firstPage = repository.findFanTalks(creator.id!!, viewer.id!!, offset = 0, limit = 1)
-        val secondPage = repository.findFanTalks(creator.id!!, viewer.id!!, offset = 1, limit = 2)
+        val firstPage = repository.findFanTalks(creator.id!!, viewer.id!!, offset = 0, limit = 1, lang = Lang.KO)
+        val secondPage = repository.findFanTalks(creator.id!!, viewer.id!!, offset = 1, limit = 2, lang = Lang.KO)
 
         assertEquals(2, count)
         assertEquals(listOf(newer.id), firstPage.map { it.fanTalkId })
@@ -114,7 +115,7 @@ class DefaultCreatorChannelFanTalkQueryRepositoryTest @Autowired constructor(
         val newest = saveCheers(writer, creator, "newest", isActive = true, createdAt = sameCreatedAt.plusMinutes(1))
         flushAndClear()
 
-        val records = repository.findFanTalks(creator.id!!, viewer.id!!, offset = 0, limit = 10)
+        val records = repository.findFanTalks(creator.id!!, viewer.id!!, offset = 0, limit = 10, lang = Lang.KO)
 
         assertEquals(listOf(newest.id, second.id, first.id), records.map { it.fanTalkId })
     }
@@ -157,8 +158,8 @@ class DefaultCreatorChannelFanTalkQueryRepositoryTest @Autowired constructor(
         )
         flushAndClear()
 
-        val replies = repository.findCreatorReplies(creator.id!!, listOf(parent.id!!))
-        val emptyReplies = repository.findCreatorReplies(creator.id!!, emptyList())
+        val replies = repository.findCreatorReplies(creator.id!!, listOf(parent.id!!), Lang.KO)
+        val emptyReplies = repository.findCreatorReplies(creator.id!!, emptyList(), Lang.KO)
 
         assertEquals(listOf(olderReply.id, newerReply.id), replies.map { it.fanTalkId })
         assertEquals(parent.id, replies.first().parentFanTalkId)

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/fantalk/application/CreatorChannelFanTalkQueryServiceTest.kt

@@ -2,7 +2,6 @@ package kr.co.vividnext.sodalive.v2.creator.channel.fantalk.application
 
 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.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberProvider
@@ -30,7 +29,7 @@ class CreatorChannelFanTalkQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getFanTalkTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0))
+            service.getFanTalkTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
         }
 
         assertEquals("member.validation.user_not_found", exception.messageKey)
@@ -44,7 +43,7 @@ class CreatorChannelFanTalkQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getFanTalkTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0))
+            service.getFanTalkTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
         }
 
         assertEquals("member.validation.creator_not_found", exception.messageKey)
@@ -58,7 +57,7 @@ class CreatorChannelFanTalkQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getFanTalkTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0))
+            service.getFanTalkTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
         }
 
         assertNull(exception.messageKey)
@@ -85,7 +84,8 @@ class CreatorChannelFanTalkQueryServiceTest {
             viewer = viewer,
             page = -1,
             size = 10,
-            now = LocalDateTime.of(2026, 6, 21, 10, 0)
+            now = LocalDateTime.of(2026, 6, 21, 10, 0),
+            lang = Lang.EN
         )
 
         assertEquals(60, tab.fanTalkCount)
@@ -114,7 +114,7 @@ class CreatorChannelFanTalkQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 10L)
 
-        val tab = service.getFanTalkTab(1L, viewer, 3, 20, LocalDateTime.of(2026, 6, 21, 10, 0))
+        val tab = service.getFanTalkTab(1L, viewer, 3, 20, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
 
         assertEquals(5, tab.fanTalkCount)
         assertEquals(emptyList<Long>(), tab.fanTalks.map { it.fanTalkId })
@@ -156,7 +156,7 @@ class CreatorChannelFanTalkQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 10L)
 
-        val fanTalks = service.getFanTalkTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0))
+        val fanTalks = service.getFanTalkTab(1L, viewer, null, null, LocalDateTime.of(2026, 6, 21, 10, 0), Lang.EN)
             .fanTalks
 
         assertEquals("fan", fanTalks[0].writerNickname)
@@ -169,13 +169,10 @@ class CreatorChannelFanTalkQueryServiceTest {
     }
 
     private fun createService(port: FakeCreatorChannelFanTalkQueryPort): CreatorChannelFanTalkQueryService {
-        val langContext = LangContext()
-        langContext.setLang(Lang.EN)
         return CreatorChannelFanTalkQueryService(
             queryPortProvider = FixedCreatorChannelFanTalkQueryPortProvider(port),
             queryPolicy = CreatorChannelFanTalkQueryPolicy(),
             messageSource = SodaMessageSource(),
-            langContext = langContext,
             cloudFrontHost = "https://cdn.test"
         )
     }
@@ -216,7 +213,7 @@ private class FakeCreatorChannelFanTalkQueryPort : CreatorChannelFanTalkQueryPor
     var listLimit: Int? = null
     var replyParentFanTalkIds: List<Long>? = null
 
-    override fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelFanTalkCreatorRecord? = creator
+    override fun findCreator(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelFanTalkCreatorRecord? = creator
 
     override fun existsBlockedBetween(viewerId: Long, creatorId: Long): Boolean = blocked
 
@@ -226,7 +223,8 @@ private class FakeCreatorChannelFanTalkQueryPort : CreatorChannelFanTalkQueryPor
         creatorId: Long,
         viewerId: Long,
         offset: Long,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ): List<CreatorChannelFanTalkRecord> {
         listOffset = offset
         listLimit = limit
@@ -235,7 +233,8 @@ private class FakeCreatorChannelFanTalkQueryPort : CreatorChannelFanTalkQueryPor
 
     override fun findCreatorReplies(
         creatorId: Long,
-        parentFanTalkIds: List<Long>
+        parentFanTalkIds: List<Long>,
+        lang: Lang
     ): List<CreatorChannelFanTalkReplyRecord> {
         replyParentFanTalkIds = parentFanTalkIds
         return creatorReplies

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

@@ -18,6 +18,7 @@ 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.explorer.profile.CreatorCheers
 import kr.co.vividnext.sodalive.explorer.profile.channelDonation.ChannelDonationMessage
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.live.room.GenderRestriction
 import kr.co.vividnext.sodalive.live.room.LiveRoom
 import kr.co.vividnext.sodalive.live.room.visit.LiveRoomVisit
@@ -70,8 +71,8 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         val aiCreator = saveMember("ai-creator", MemberRole.CREATOR, memberKind = MemberKind.AI_CHARACTER)
         flushAndClear()
 
-        val record = repository.findCreator(creator.id!!, viewer.id!!)
-        val aiRecord = repository.findCreator(aiCreator.id!!, viewer.id!!)
+        val record = repository.findCreator(creator.id!!, viewer.id!!, Lang.KO)
+        val aiRecord = repository.findCreator(aiCreator.id!!, viewer.id!!, Lang.KO)
 
         assertNotNull(record)
         assertEquals(2, record!!.followerCount)
@@ -91,7 +92,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         saveCharacter(creator, isActive = false)
         flushAndClear()
 
-        val record = repository.findCreator(creator.id!!, viewerId = null)
+        val record = repository.findCreator(creator.id!!, viewerId = null, lang = Lang.KO)
 
         assertEquals(null, record!!.characterId)
         assertFalse(record.isAiChatAvailable)
@@ -108,7 +109,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         saveFollowing(saveMember("inactive-member-follower", MemberRole.USER, isActive = false), creator, isActive = true)
         flushAndClear()
 
-        val record = repository.findCreator(creator.id!!, viewerId = null)
+        val record = repository.findCreator(creator.id!!, viewerId = null, lang = Lang.KO)
 
         assertEquals(5, record!!.followerCount)
     }
@@ -119,7 +120,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         val user = saveMember("non-creator-target", MemberRole.USER)
         flushAndClear()
 
-        val record = repository.findCreator(user.id!!, viewerId = null)
+        val record = repository.findCreator(user.id!!, viewerId = null, lang = Lang.KO)
 
         assertNotNull(record)
         assertEquals(MemberRole.USER, record!!.role)
@@ -216,7 +217,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         updateUpdatedAt("LiveRoom", currentLive.id!!, now.minusHours(1))
         flushAndClear()
 
-        val creatorRecord = repository.findCreator(creator.id!!, viewer.id!!)
+        val creatorRecord = repository.findCreator(creator.id!!, viewer.id!!, Lang.KO)
         val currentLiveRecord = repository.findCurrentLive(
             creator.id!!,
             now,
@@ -231,7 +232,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
             canViewAdultContent = false,
             viewerId = viewer.id!!
         )
-        val donations = repository.findChannelDonations(creator.id!!, viewer.id!!, now, limit = 8)
+        val donations = repository.findChannelDonations(creator.id!!, viewer.id!!, now, limit = 8, lang = Lang.KO)
         val schedules = repository.findSchedules(
             creator.id!!,
             now,
@@ -250,7 +251,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
             limit = 9
         )
         val seriesRecords = repository.findSeries(creator.id!!, viewer.id!!, now, false, ContentType.ALL, limit = 8)
-        val fanTalkSummary = repository.findFanTalkSummary(creator.id!!, viewer.id!!)
+        val fanTalkSummary = repository.findFanTalkSummary(creator.id!!, viewer.id!!, Lang.KO)
         val activity = repository.findActivity(creator.id!!, now)
         val sns = repository.findSns(creator.id!!)
 
@@ -289,7 +290,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         saveFollowing(viewer, creator, isActive = false, isNotify = true)
         flushAndClear()
 
-        val record = repository.findCreator(creator.id!!, viewer.id!!)
+        val record = repository.findCreator(creator.id!!, viewer.id!!, Lang.KO)
 
         assertFalse(record!!.isFollow)
         assertFalse(record.isNotify)
@@ -770,7 +771,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         saveCheers(writer, creator, "reply", isActive = true, LocalDateTime.of(2026, 6, 12, 14, 0), parent = older)
         flushAndClear()
 
-        val summary = repository.findFanTalkSummary(creator.id!!, viewer.id!!)
+        val summary = repository.findFanTalkSummary(creator.id!!, viewer.id!!, Lang.KO)
 
         assertEquals(2, summary.totalCount)
         assertEquals(latest.id, summary.latestFanTalk!!.fanTalkId)
@@ -788,9 +789,9 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         val thirdParty = saveMember("kst-donation-third-party", MemberRole.USER)
         flushAndClear()
 
-        val creatorView = repository.findChannelDonations(creator.id!!, creator.id!!, now, limit = 8)
-        val donorView = repository.findChannelDonations(creator.id!!, donor.id!!, now, limit = 8)
-        val thirdPartyView = repository.findChannelDonations(creator.id!!, thirdParty.id!!, now, limit = 8)
+        val creatorView = repository.findChannelDonations(creator.id!!, creator.id!!, now, limit = 8, lang = Lang.KO)
+        val donorView = repository.findChannelDonations(creator.id!!, donor.id!!, now, limit = 8, lang = Lang.KO)
+        val thirdPartyView = repository.findChannelDonations(creator.id!!, thirdParty.id!!, now, limit = 8, lang = Lang.KO)
 
         assertEquals(listOf(300), creatorView.map { it.can })
         assertEquals(listOf(300), donorView.map { it.can })
@@ -821,7 +822,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         )
         flushAndClear()
 
-        val records = repository.findChannelDonations(creator.id!!, donor.id!!, now, limit = 8)
+        val records = repository.findChannelDonations(creator.id!!, donor.id!!, now, limit = 8, lang = Lang.KO)
 
         assertEquals(listOf(1000, 3), records.map { it.can })
         assertEquals("응원합니다", records.first().message)
@@ -837,7 +838,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         saveDonation(creator, donor, 1000, now.minusMinutes(1), isSecret = true, additionalMessage = "cheer")
         flushAndClear()
 
-        val records = repository.findChannelDonations(creator.id!!, donor.id!!, now, limit = 8)
+        val records = repository.findChannelDonations(creator.id!!, donor.id!!, now, limit = 8, lang = Lang.KO)
 
         assertEquals("cheer", records.single().message)
     }
@@ -852,7 +853,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         saveBlock(writer, viewer)
         flushAndClear()
 
-        val summary = repository.findFanTalkSummary(creator.id!!, viewer.id!!)
+        val summary = repository.findFanTalkSummary(creator.id!!, viewer.id!!, Lang.KO)
 
         assertEquals(0, summary.totalCount)
         assertEquals(null, summary.latestFanTalk)
@@ -1042,7 +1043,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         saveBlock(writerBlockedViewer, viewer)
         flushAndClear()
 
-        val summary = repository.findFanTalkSummary(creator.id!!, viewer.id!!)
+        val summary = repository.findFanTalkSummary(creator.id!!, viewer.id!!, Lang.KO)
 
         assertEquals(1, summary.totalCount)
         assertEquals(visibleTalk.id, summary.latestFanTalk!!.fanTalkId)
@@ -1057,7 +1058,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         saveCheers(writer, creator, "visible", isActive = true, LocalDateTime.of(2026, 6, 12, 12, 0))
         flushAndClear()
 
-        val summary = repository.findFanTalkSummary(creator.id!!, viewer.id!!)
+        val summary = repository.findFanTalkSummary(creator.id!!, viewer.id!!, Lang.KO)
 
         assertEquals("fan", summary.latestFanTalk!!.nickname)
     }
@@ -1085,7 +1086,7 @@ class DefaultCreatorChannelHomeQueryRepositoryTest @Autowired constructor(
         updateUpdatedAt("LiveRoom", futureLive.id!!, now.plusDays(1).plusHours(1))
         flushAndClear()
 
-        val creatorRecord = repository.findCreator(creator.id!!, viewerId = null)
+        val creatorRecord = repository.findCreator(creator.id!!, viewerId = null, lang = Lang.KO)
         val activity = repository.findActivity(creator.id!!, now)
         val sns = repository.findSns(creator.id!!)
 

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/home/application/CreatorChannelHomeQueryServiceTest.kt

@@ -70,7 +70,7 @@ class CreatorChannelHomeQueryServiceTest {
         val viewer = createMember(id = 10L, gender = Gender.FEMALE, authGender = 1)
         val now = LocalDateTime.of(2026, 6, 13, 10, 0)
 
-        val home = service.getHome(creatorId = 1L, viewer = viewer, now = now)
+        val home = service.getHome(creatorId = 1L, viewer = viewer, now = now, lang = Lang.KO)
 
         assertEquals(1L, home.creator.creatorId)
         assertEquals("https://cdn.test/profile/creator.png", home.creator.profileImageUrl)
@@ -115,7 +115,7 @@ class CreatorChannelHomeQueryServiceTest {
         val service = createService(port, lang = Lang.JA)
         val viewer = createMember(id = 10L)
 
-        service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+        service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.JA)
 
         assertEquals("ja", port.latestAudioLocale)
         assertEquals("ja", port.audioContentsLocale)
@@ -130,7 +130,7 @@ class CreatorChannelHomeQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 1L, gender = Gender.FEMALE, authGender = null, role = MemberRole.CREATOR)
 
-        service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+        service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
 
         assertTrue(port.currentLiveIsViewerCreator == true)
         assertTrue(port.schedulesIsViewerCreator == true)
@@ -145,7 +145,7 @@ class CreatorChannelHomeQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 10L, role = MemberRole.CREATOR)
 
-        service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+        service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
 
         assertTrue(port.currentLiveIsViewerCreator == true)
         assertTrue(port.schedulesIsViewerCreator == true)
@@ -158,7 +158,7 @@ class CreatorChannelHomeQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 10L, role = MemberRole.USER)
 
-        service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+        service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
 
         assertFalse(port.currentLiveIsViewerCreator == true)
         assertFalse(port.schedulesIsViewerCreator == true)
@@ -173,7 +173,7 @@ class CreatorChannelHomeQueryServiceTest {
         val service = createService(port, communityPort, preferenceService = preferenceService)
         val viewer = createMember(id = 10L)
 
-        service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+        service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
 
         assertEquals(false, port.currentLiveCanViewAdultContent)
         assertEquals(false, port.schedulesCanViewAdultContent)
@@ -191,7 +191,7 @@ class CreatorChannelHomeQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 10L)
 
-        val home = service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+        val home = service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
 
         assertEquals("donor", home.channelDonations.first().nickname)
     }
@@ -206,7 +206,7 @@ class CreatorChannelHomeQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getHome(creatorId = 999L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+            service.getHome(999L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
         }
 
         assertEquals("member.validation.user_not_found", exception.messageKey)
@@ -222,7 +222,7 @@ class CreatorChannelHomeQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+            service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
         }
 
         assertEquals("member.validation.creator_not_found", exception.messageKey)
@@ -239,7 +239,7 @@ class CreatorChannelHomeQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+            service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
         }
 
         assertNull(exception.messageKey)
@@ -256,7 +256,7 @@ class CreatorChannelHomeQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getHome(creatorId = 1L, viewer = viewer, now = LocalDateTime.of(2026, 6, 13, 10, 0))
+            service.getHome(1L, viewer, LocalDateTime.of(2026, 6, 13, 10, 0), Lang.KO)
         }
 
         assertNull(exception.messageKey)
@@ -408,6 +408,7 @@ class CreatorChannelHomeQueryServiceTest {
             ),
             channelDonations = listOf(
                 CreatorChannelDonation(
+                    memberId = 20L,
                     nickname = "fan",
                     profileImageUrl = "fan.png",
                     can = 50,
@@ -593,7 +594,7 @@ private class FakeCreatorChannelHomeQueryPort : CreatorChannelHomeQueryPort {
     var seriesLocale: String? = null
     var channelDonationNickname: String = "fan"
 
-    override fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelCreatorRecord? = creator
+    override fun findCreator(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelCreatorRecord? = creator
 
     override fun existsBlockedBetween(viewerId: Long, creatorId: Long): Boolean = blocked
 
@@ -634,9 +635,11 @@ private class FakeCreatorChannelHomeQueryPort : CreatorChannelHomeQueryPort {
         creatorId: Long,
         viewerId: Long?,
         now: LocalDateTime,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ): List<CreatorChannelDonationRecord> = listOf(
         CreatorChannelDonationRecord(
+            memberId = 20L,
             nickname = channelDonationNickname,
             profileImagePath = "profile/fan.png",
             can = 30,
@@ -710,7 +713,7 @@ private class FakeCreatorChannelHomeQueryPort : CreatorChannelHomeQueryPort {
         )
     }
 
-    override fun findFanTalkSummary(creatorId: Long, viewerId: Long?): CreatorChannelFanTalkSummaryRecord {
+    override fun findFanTalkSummary(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelFanTalkSummaryRecord {
         return CreatorChannelFanTalkSummaryRecord(
             totalCount = 1,
             latestFanTalk = CreatorChannelFanTalkRecord(
@@ -798,7 +801,7 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
     val homeCanViewAdultContentValues = mutableListOf<Boolean>()
     val homeLimits = mutableListOf<Int>()
 
-    override fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelCommunityCreatorRecord? {
+    override fun findCreator(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelCommunityCreatorRecord? {
         return CreatorChannelCommunityCreatorRecord(creatorId = creatorId, role = MemberRole.CREATOR, nickname = "creator")
     }
 
@@ -811,7 +814,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
         viewerId: Long,
         canViewAdultContent: Boolean,
         offset: Long,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ): List<CreatorChannelCommunityPostRecord> = emptyList()
 
     override fun findHomeCommunityPosts(
@@ -819,7 +823,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
         viewerId: Long,
         isPinned: Boolean,
         canViewAdultContent: Boolean,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ): List<CreatorChannelCommunityPostRecord> {
         homeCreatorIds += creatorId
         homeViewerIds += viewerId
@@ -850,7 +855,8 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
     override fun findCommunityPost(
         postId: Long,
         viewerId: Long,
-        canViewAdultContent: Boolean
+        canViewAdultContent: Boolean,
+        lang: Lang
     ): CreatorChannelCommunityPostRecord? = null
 
     override fun countCommunityComments(postId: Long, viewerId: Long, creatorId: Long): Int = 0
@@ -860,12 +866,14 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
         viewerId: Long,
         creatorId: Long,
         offset: Long,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ) = emptyList<kr.co.vividnext.sodalive.v2.creator.channel.community.port.out.CreatorChannelCommunityCommentRecord>()
 
     override fun findLatestRepliesByCommentIds(
         commentIds: List<Long>,
-        viewerId: Long
+        viewerId: Long,
+        lang: Lang
     ) = emptyList<kr.co.vividnext.sodalive.v2.creator.channel.community.port.out.CreatorChannelCommunityCommentRecord>()
 
     override fun findRootCommentContext(
@@ -880,6 +888,7 @@ private class FakeCreatorChannelCommunityQueryPort : CreatorChannelCommunityQuer
         commentId: Long,
         viewerId: Long,
         offset: Long,
-        limit: Int
+        limit: Int,
+        lang: Lang
     ) = emptyList<kr.co.vividnext.sodalive.v2.creator.channel.community.port.out.CreatorChannelCommunityCommentRecord>()
 }

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

@@ -9,6 +9,7 @@ import kr.co.vividnext.sodalive.content.order.OrderType
 import kr.co.vividnext.sodalive.content.theme.AudioContentTheme
 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.i18n.Lang
 import kr.co.vividnext.sodalive.live.room.GenderRestriction
 import kr.co.vividnext.sodalive.live.room.LiveRoom
 import kr.co.vividnext.sodalive.member.Gender
@@ -274,7 +275,7 @@ class DefaultCreatorChannelLiveQueryRepositoryTest @Autowired constructor(
         saveBlock(creator, viewer)
         flushAndClear()
 
-        val record = repository.findCreator(creator.id!!, viewer.id!!)
+        val record = repository.findCreator(creator.id!!, viewer.id!!, Lang.KO)
 
         assertEquals(creator.id, record!!.creatorId)
         assertEquals(MemberRole.CREATOR, record.role)

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/live/application/CreatorChannelLiveQueryServiceTest.kt

@@ -2,7 +2,6 @@ package kr.co.vividnext.sodalive.v2.creator.channel.live.application
 
 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.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.Gender
 import kr.co.vividnext.sodalive.member.Member
@@ -42,7 +41,8 @@ class CreatorChannelLiveQueryServiceTest {
             sort = ContentSort.LATEST,
             page = 0,
             size = 20,
-            now = now
+            now = now,
+            lang = Lang.KO
         )
 
         assertEquals(1L, port.findCreatorCreatorId)
@@ -75,7 +75,8 @@ class CreatorChannelLiveQueryServiceTest {
             sort = ContentSort.LATEST,
             page = 0,
             size = 20,
-            now = LocalDateTime.of(2026, 6, 17, 10, 0)
+            now = LocalDateTime.of(2026, 6, 17, 10, 0),
+            lang = Lang.KO
         )
 
         assertTrue(port.currentLiveIsViewerCreator == true)
@@ -96,7 +97,8 @@ class CreatorChannelLiveQueryServiceTest {
             sort = ContentSort.LATEST,
             page = 0,
             size = 20,
-            now = LocalDateTime.of(2026, 6, 17, 10, 0)
+            now = LocalDateTime.of(2026, 6, 17, 10, 0),
+            lang = Lang.KO
         )
 
         assertEquals(30, tab.liveReplayContentCount)
@@ -127,7 +129,8 @@ class CreatorChannelLiveQueryServiceTest {
             sort = ContentSort.PRICE_LOW,
             page = 2,
             size = 20,
-            now = LocalDateTime.of(2026, 6, 17, 10, 0)
+            now = LocalDateTime.of(2026, 6, 17, 10, 0),
+            lang = Lang.KO
         )
 
         assertEquals(30, tab.liveReplayContentCount)
@@ -151,7 +154,7 @@ class CreatorChannelLiveQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getLiveTab(1L, viewer, ContentSort.LATEST, 0, 20, LocalDateTime.of(2026, 6, 17, 10, 0))
+            service.getLiveTab(1L, viewer, ContentSort.LATEST, 0, 20, LocalDateTime.of(2026, 6, 17, 10, 0), Lang.KO)
         }
 
         assertEquals("member.validation.user_not_found", exception.messageKey)
@@ -167,7 +170,7 @@ class CreatorChannelLiveQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getLiveTab(1L, viewer, ContentSort.LATEST, 0, 20, LocalDateTime.of(2026, 6, 17, 10, 0))
+            service.getLiveTab(1L, viewer, ContentSort.LATEST, 0, 20, LocalDateTime.of(2026, 6, 17, 10, 0), Lang.KO)
         }
 
         assertEquals("member.validation.creator_not_found", exception.messageKey)
@@ -184,7 +187,7 @@ class CreatorChannelLiveQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getLiveTab(1L, viewer, ContentSort.LATEST, 0, 20, LocalDateTime.of(2026, 6, 17, 10, 0))
+            service.getLiveTab(1L, viewer, ContentSort.LATEST, 0, 20, LocalDateTime.of(2026, 6, 17, 10, 0), Lang.KO)
         }
 
         assertNull(exception.messageKey)
@@ -198,7 +201,7 @@ class CreatorChannelLiveQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getLiveTab(1L, viewer, ContentSort.LATEST, -1, 20, LocalDateTime.of(2026, 6, 17, 10, 0))
+            service.getLiveTab(1L, viewer, ContentSort.LATEST, -1, 20, LocalDateTime.of(2026, 6, 17, 10, 0), Lang.KO)
         }
 
         assertEquals("common.error.invalid_request", exception.messageKey)
@@ -211,7 +214,7 @@ class CreatorChannelLiveQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getLiveTab(1L, viewer, ContentSort.LATEST, 0, 51, LocalDateTime.of(2026, 6, 17, 10, 0))
+            service.getLiveTab(1L, viewer, ContentSort.LATEST, 0, 51, LocalDateTime.of(2026, 6, 17, 10, 0), Lang.KO)
         }
 
         assertEquals("common.error.invalid_request", exception.messageKey)
@@ -240,14 +243,11 @@ class CreatorChannelLiveQueryServiceTest {
             preferenceService.canViewAdultContent(Mockito.any(Member::class.java) ?: createMember(id = 0L))
         ).thenReturn(canViewAdultContent)
         val messageSource = SodaMessageSource()
-        val langContext = LangContext()
-        langContext.setLang(Lang.KO)
         return CreatorChannelLiveQueryService(
             queryPortProvider = portProvider,
             queryPolicy = CreatorChannelLiveReplayQueryPolicy(),
             memberContentPreferenceService = preferenceService,
             messageSource = messageSource,
-            langContext = langContext,
             cloudFrontHost = "https://cdn.test"
         )
     }
@@ -337,7 +337,7 @@ private class FakeCreatorChannelLiveQueryPort : CreatorChannelLiveQueryPort {
     var listOffset: Long? = null
     var listLimit: Int? = null
 
-    override fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelCreatorRecord? {
+    override fun findCreator(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelCreatorRecord? {
         findCreatorCreatorId = creatorId
         findCreatorViewerId = viewerId
         return creator

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

@@ -13,6 +13,7 @@ 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.creator.admin.content.series.SeriesPublishedDaysOfWeek
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesState
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.block.BlockMember
@@ -50,8 +51,8 @@ class DefaultCreatorChannelSeriesQueryRepositoryTest @Autowired constructor(
         saveBlock(creator, viewer)
         flushAndClear()
 
-        val record = repository.findCreator(creator.id!!, viewer.id!!)
-        val inactiveRecord = repository.findCreator(inactiveCreator.id!!, viewer.id!!)
+        val record = repository.findCreator(creator.id!!, viewer.id!!, Lang.KO)
+        val inactiveRecord = repository.findCreator(inactiveCreator.id!!, viewer.id!!, Lang.KO)
 
         assertEquals(creator.id, record!!.creatorId)
         assertEquals(MemberRole.CREATOR, record.role)

src/test/kotlin/kr/co/vividnext/sodalive/v2/creator/channel/series/application/CreatorChannelSeriesQueryServiceTest.kt

@@ -42,7 +42,8 @@ class CreatorChannelSeriesQueryServiceTest {
             sort = "UNKNOWN",
             page = -1,
             size = 100,
-            now = now
+            now = now,
+            lang = Lang.EN
         )
 
         assertEquals(ContentSort.LATEST, tab.sort)
@@ -70,7 +71,7 @@ class CreatorChannelSeriesQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 1L)
 
-        val tab = service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0))
+        val tab = service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0), Lang.EN)
 
         assertNull(tab.series.first().purchasedContentCount)
         assertNull(tab.series.first().paidContentCount)
@@ -86,7 +87,7 @@ class CreatorChannelSeriesQueryServiceTest {
         val service = createService(port)
         val viewer = createMember(id = 10L)
 
-        val tab = service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0))
+        val tab = service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0), Lang.EN)
 
         assertNull(tab.series.first().coverImageUrl)
         assertEquals(0, tab.series.first().purchasedPaidContentRate)
@@ -100,7 +101,7 @@ class CreatorChannelSeriesQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0))
+            service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0), Lang.EN)
         }
 
         assertEquals("member.validation.user_not_found", exception.messageKey)
@@ -114,7 +115,7 @@ class CreatorChannelSeriesQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0))
+            service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0), Lang.EN)
         }
 
         assertEquals("member.validation.creator_not_found", exception.messageKey)
@@ -128,7 +129,7 @@ class CreatorChannelSeriesQueryServiceTest {
         val viewer = createMember(id = 10L)
 
         val exception = assertThrows(SodaException::class.java) {
-            service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0))
+            service.getSeriesTab(1L, viewer, null, null, null, LocalDateTime.of(2026, 6, 20, 10, 0), Lang.EN)
         }
 
         assertNull(exception.messageKey)
@@ -192,7 +193,7 @@ private class FakeCreatorChannelSeriesQueryPort : CreatorChannelSeriesQueryPort
     var listLimit: Int? = null
     var listCanViewAdultContent: Boolean? = null
 
-    override fun findCreator(creatorId: Long, viewerId: Long?): CreatorChannelSeriesCreatorRecord? = creator
+    override fun findCreator(creatorId: Long, viewerId: Long?, lang: Lang): CreatorChannelSeriesCreatorRecord? = creator
 
     override fun existsBlockedBetween(viewerId: Long, creatorId: Long): Boolean = blocked
     override fun countSeries(creatorId: Long, now: LocalDateTime, canViewAdultContent: Boolean): Int = seriesCount

src/test/kotlin/kr/co/vividnext/sodalive/v2/gift/application/GiftQueryServiceTest.kt

@@ -2,8 +2,11 @@ package kr.co.vividnext.sodalive.v2.gift.application
 
 import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.configs.QueryDslConfig
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRepository
+import kr.co.vividnext.sodalive.support.LegacyCreatorNameTestConfiguration
+import kr.co.vividnext.sodalive.v2.creatorname.application.CreatorLocalizedNameService
 import kr.co.vividnext.sodalive.v2.gift.adapter.out.persistence.Gift
 import kr.co.vividnext.sodalive.v2.gift.adapter.out.persistence.GiftCategory
 import kr.co.vividnext.sodalive.v2.gift.adapter.out.persistence.GiftCategoryRepository
@@ -35,14 +38,15 @@ import java.time.LocalDateTime
         "spring.datasource.url=jdbc:h2:mem:gift-query;MODE=MySQL;NON_KEYWORDS=VALUE"
     ]
 )
-@Import(QueryDslConfig::class)
+@Import(QueryDslConfig::class, LegacyCreatorNameTestConfiguration::class)
 class GiftQueryServiceTest @Autowired constructor(
     private val categoryRepository: GiftCategoryRepository,
     private val sizePriceRepository: GiftSizePriceRepository,
     private val giftRepository: GiftRepository,
     private val deliveryRepository: GiftDeliveryRepository,
     private val memberRepository: MemberRepository,
-    private val giftMailboxRepository: GiftMailboxRepository
+    private val giftMailboxRepository: GiftMailboxRepository,
+    private val creatorLocalizedNameService: CreatorLocalizedNameService
 ) {
     @Test
     fun `폼 옵션은 활성 카테고리와 활성 사이즈 가격만 반환한다`() {
@@ -79,7 +83,8 @@ class GiftQueryServiceTest @Autowired constructor(
             memberId = sender.id!!,
             type = GiftListType.SENT,
             page = 0,
-            size = 20
+            size = 20,
+            lang = Lang.KO
         )
 
         assertEquals(1L, result.totalCount)
@@ -122,7 +127,8 @@ class GiftQueryServiceTest @Autowired constructor(
             memberId = recipient.id!!,
             type = GiftListType.RECEIVED,
             page = 0,
-            size = 20
+            size = 20,
+            lang = Lang.KO
         )
 
         assertEquals(1L, result.totalCount)
@@ -162,7 +168,8 @@ class GiftQueryServiceTest @Autowired constructor(
             memberId = member.id!!,
             type = GiftListType.ALL,
             page = 0,
-            size = 20
+            size = 20,
+            lang = Lang.KO
         )
 
         assertEquals(2L, result.totalCount)
@@ -220,7 +227,8 @@ class GiftQueryServiceTest @Autowired constructor(
             memberId = member.id!!,
             type = GiftListType.ALL,
             page = 0,
-            size = 20
+            size = 20,
+            lang = Lang.KO
         )
 
         val items = result.items.associateBy { it.applicationNo }
@@ -245,7 +253,8 @@ class GiftQueryServiceTest @Autowired constructor(
             memberId = sender.id!!,
             type = GiftListType.SENT,
             page = -1,
-            size = 0
+            size = 0,
+            lang = Lang.KO
         )
 
         assertEquals(0, result.page)
@@ -272,7 +281,7 @@ class GiftQueryServiceTest @Autowired constructor(
         delivery.recipientAddress = "서울시 중구"
         delivery.recipientAddressDetail = "202호"
 
-        val result = queryService().getGiftDetail(sender.id!!, gift.applicationNo)
+        val result = queryService().getGiftDetail(sender.id!!, gift.applicationNo, Lang.KO)
 
         assertEquals(GiftDirection.SENT, result.direction)
         assertEquals(recipient.nickname, result.giftInfo.recipientCreatorNickname)
@@ -335,7 +344,7 @@ class GiftQueryServiceTest @Autowired constructor(
             )
             saveDelivery(gift).applyStatusTimes(status)
 
-            val result = service.getGiftDetail(sender.id!!, gift.applicationNo)
+            val result = service.getGiftDetail(sender.id!!, gift.applicationNo, Lang.KO)
 
             assertEquals("소다라이브 선물 담당자", result.mailbox?.name)
             assertEquals("01012345678", result.mailbox?.phoneNumber)
@@ -370,7 +379,7 @@ class GiftQueryServiceTest @Autowired constructor(
             )
             saveDelivery(gift).applyStatusTimes(status)
 
-            val result = service.getGiftDetail(sender.id!!, gift.applicationNo)
+            val result = service.getGiftDetail(sender.id!!, gift.applicationNo, Lang.KO)
 
             assertNull(result.mailbox)
         }
@@ -383,7 +392,7 @@ class GiftQueryServiceTest @Autowired constructor(
         )
         saveDelivery(receivedGift).applyStatusTimes(GiftStatus.TRACKING_REGISTERED)
 
-        val recipientResult = service.getGiftDetail(recipient.id!!, receivedGift.applicationNo)
+        val recipientResult = service.getGiftDetail(recipient.id!!, receivedGift.applicationNo, Lang.KO)
 
         assertNull(recipientResult.mailbox)
     }
@@ -401,7 +410,7 @@ class GiftQueryServiceTest @Autowired constructor(
         )
         saveDelivery(gift).applyStatusTimes(GiftStatus.INSPECTION_COMPLETED)
 
-        val result = queryService().getGiftDetail(sender.id!!, gift.applicationNo)
+        val result = queryService().getGiftDetail(sender.id!!, gift.applicationNo, Lang.KO)
 
         assertNull(result.mailbox)
     }
@@ -426,7 +435,7 @@ class GiftQueryServiceTest @Autowired constructor(
             recipientAddressDetail = "202호"
         }
 
-        val result = queryService().getGiftDetail(recipient.id!!, gift.applicationNo)
+        val result = queryService().getGiftDetail(recipient.id!!, gift.applicationNo, Lang.KO)
 
         assertEquals(GiftDirection.RECEIVED, result.direction)
         assertNull(result.giftInfo.recipientCreatorNickname)
@@ -478,13 +487,13 @@ class GiftQueryServiceTest @Autowired constructor(
         val service = queryService()
 
         val hiddenException = assertThrows(SodaException::class.java) {
-            service.getGiftDetail(recipient.id!!, hiddenGift.applicationNo)
+            service.getGiftDetail(recipient.id!!, hiddenGift.applicationNo, Lang.KO)
         }
         val unrelatedException = assertThrows(SodaException::class.java) {
-            service.getGiftDetail(other.id!!, visibleGift.applicationNo)
+            service.getGiftDetail(other.id!!, visibleGift.applicationNo, Lang.KO)
         }
         val missingDeliveryException = assertThrows(SodaException::class.java) {
-            service.getGiftDetail(sender.id!!, missingDeliveryGift.applicationNo)
+            service.getGiftDetail(sender.id!!, missingDeliveryGift.applicationNo, Lang.KO)
         }
 
         assertEquals("common.error.invalid_request", hiddenException.messageKey)
@@ -517,8 +526,8 @@ class GiftQueryServiceTest @Autowired constructor(
         }
         val service = queryService()
 
-        val pendingResult = service.getGiftDetail(recipient.id!!, pendingGift.applicationNo)
-        val terminalResult = service.getGiftDetail(recipient.id!!, terminalGift.applicationNo)
+        val pendingResult = service.getGiftDetail(recipient.id!!, pendingGift.applicationNo, Lang.KO)
+        val terminalResult = service.getGiftDetail(recipient.id!!, terminalGift.applicationNo, Lang.KO)
 
         assertEquals(true, pendingResult.recipientAddressRequired)
         assertNull(pendingResult.recipientAddress)
@@ -551,8 +560,8 @@ class GiftQueryServiceTest @Autowired constructor(
         }
         val service = queryService()
 
-        val canceledResult = service.getGiftDetail(sender.id!!, canceledGift.applicationNo)
-        val undeliverableResult = service.getGiftDetail(sender.id!!, undeliverableGift.applicationNo)
+        val canceledResult = service.getGiftDetail(sender.id!!, canceledGift.applicationNo, Lang.KO)
+        val undeliverableResult = service.getGiftDetail(sender.id!!, undeliverableGift.applicationNo, Lang.KO)
 
         assertEquals(NOW.plusHours(1), canceledResult.delivery.canceledAt)
         assertNull(canceledResult.statusTimeline[1].occurredAt)
@@ -639,7 +648,8 @@ class GiftQueryServiceTest @Autowired constructor(
         deliveryRepository,
         memberRepository,
         giftMailboxRepository,
-        "https://cdn.test"
+        "https://cdn.test",
+        creatorLocalizedNameService
     )
 
     private companion object {

src/test/kotlin/kr/co/vividnext/sodalive/v2/home/following/adapter/out/persistence/DefaultHomeFollowingQueryRepositoryTest.kt

@@ -7,6 +7,7 @@ import kr.co.vividnext.sodalive.content.theme.AudioContentTheme
 import kr.co.vividnext.sodalive.explorer.profile.creatorCommunity.CreatorCommunity
 import kr.co.vividnext.sodalive.explorer.profile.creatorCommunity.comment.CreatorCommunityComment
 import kr.co.vividnext.sodalive.explorer.profile.creatorCommunity.like.CreatorCommunityLike
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.live.room.GenderRestriction
 import kr.co.vividnext.sodalive.live.room.LiveRoom
 import kr.co.vividnext.sodalive.member.Gender
@@ -62,7 +63,7 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
         activeFollow.createdAt = LocalDateTime.of(2026, 6, 25, 0, 0)
         flushAndClear()
 
-        val creators = repository.findFollowingCreators(memberId = viewer.id!!, limit = 20)
+        val creators = repository.findFollowingCreators(memberId = viewer.id!!, limit = 20, lang = Lang.KO)
 
         assertEquals(listOf(olderCreator.id!!, activeCreator.id!!), creators.map { it.creatorId })
         assertEquals("https://cdn.test/active.png", creators.last().creatorProfileImageUrl)
@@ -82,7 +83,7 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
         saveBlock(creatorBlockedViewer, viewer)
         flushAndClear()
 
-        val creators = repository.findFollowingCreators(memberId = viewer.id!!, limit = 20)
+        val creators = repository.findFollowingCreators(memberId = viewer.id!!, limit = 20, lang = Lang.KO)
 
         assertEquals(listOf(visibleCreator.id!!), creators.map { it.creatorId })
     }
@@ -110,7 +111,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             canViewAdultContent = false,
             effectiveViewerGender = Gender.NONE,
             isViewerCreator = false,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(latest.id!!, older.id!!), lives.map { it.liveId })
@@ -143,7 +145,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             canViewAdultContent = true,
             effectiveViewerGender = Gender.FEMALE,
             isViewerCreator = true,
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(visible.id!!), lives.map { it.liveId })
@@ -175,7 +178,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             effectiveViewerGender = Gender.NONE,
             isViewerCreator = false,
             now = LocalDateTime.of(2026, 6, 25, 12, 0),
-            limit = 3
+            limit = 3,
+            lang = Lang.KO
         )
 
         assertEquals(listOf("LIVE:${live.id!!}", "AUDIO:${audio.id!!}"), schedules.map { it.scheduleId })
@@ -210,7 +214,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             effectiveViewerGender = Gender.NONE,
             isViewerCreator = false,
             now = LocalDateTime.of(2026, 6, 25, 0, 0),
-            limit = 3
+            limit = 3,
+            lang = Lang.KO
         )
 
         assertEquals(listOf("AUDIO:${scheduledAudio.id!!}"), schedules.map { it.scheduleId })
@@ -233,7 +238,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             effectiveViewerGender = Gender.NONE,
             isViewerCreator = false,
             now = LocalDateTime.of(2026, 6, 25, 14, 30),
-            limit = 3
+            limit = 3,
+            lang = Lang.KO
         )
 
         assertTrue(schedules.map { it.scheduleId }.contains("AUDIO:${sameKstDayEvening.id!!}"))
@@ -259,7 +265,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             effectiveViewerGender = Gender.NONE,
             isViewerCreator = false,
             now = LocalDateTime.of(2026, 6, 25, 0, 0),
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
 
         assertEquals(
@@ -302,7 +309,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             effectiveViewerGender = Gender.FEMALE,
             isViewerCreator = true,
             now = LocalDateTime.of(2026, 6, 25, 0, 0),
-            limit = 10
+            limit = 10,
+            lang = Lang.KO
         )
 
         assertEquals(listOf("LIVE:${visibleLive.id!!}", "AUDIO:${audio.id!!}"), schedules.map { it.scheduleId })
@@ -332,7 +340,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = false,
             nowUtc = LocalDateTime.of(2026, 6, 25, 9, 30),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(latestVisible.id!!.toString()), news.map { it.newsId })
@@ -377,13 +386,15 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 14, 23, 59),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
         val afterLatestVisible = repository.findRecentNews(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 15, 0, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(oldSecondNews.id!!.toString(), oldFirstNews.id!!.toString()), beforeLatestVisible.map { it.newsId })
@@ -412,7 +423,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 15, 0, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertTrue(news.none { it.type == FollowingNewsType.CREATOR_RANKING })
@@ -475,7 +487,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 25, 10, 0),
-            limit = 2
+            limit = 2,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(latestFirst.id!!.toString(), latestSecond.id!!.toString()), news.map { it.newsId })
@@ -516,7 +529,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 25, 11, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(visible.id!!.toString()), news.map { it.newsId })
@@ -556,7 +570,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = false,
             nowUtc = LocalDateTime.of(2026, 6, 25, 11, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(visible.id!!.toString()), news.map { it.newsId })
@@ -577,7 +592,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = false,
             nowUtc = LocalDateTime.of(2026, 6, 25, 14, 30),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(visibleNow.id!!.toString()), news.map { it.newsId })
@@ -628,7 +644,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 25, 10, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         val communityNews = news.first { it.type == FollowingNewsType.COMMUNITY_POST }.communityPost!!
@@ -668,7 +685,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 25, 10, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertTrue(news.isEmpty())
@@ -713,7 +731,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 25, 10, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(negativeFreePost.id!!, freePost.id!!), news.map { it.communityPost?.postId })
@@ -759,13 +778,15 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = false,
             nowUtc = LocalDateTime.of(2026, 6, 25, 10, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
         val visibleNews = repository.findRecentNews(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 25, 10, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertEquals(emptyList<Long>(), hiddenNews.map { it.communityPost?.postId ?: it.audioContent?.contentId })
@@ -824,7 +845,8 @@ class DefaultHomeFollowingQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             canViewAdultContent = true,
             nowUtc = LocalDateTime.of(2026, 6, 25, 10, 0),
-            limit = 30
+            limit = 30,
+            lang = Lang.KO
         )
 
         assertEquals(

src/test/kotlin/kr/co/vividnext/sodalive/v2/home/following/application/HomeFollowingQueryServiceTest.kt

@@ -1,7 +1,6 @@
 package kr.co.vividnext.sodalive.v2.home.following.application
 
 import kr.co.vividnext.sodalive.i18n.Lang
-import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Gender
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
@@ -29,13 +28,11 @@ import java.util.TimeZone
 class HomeFollowingQueryServiceTest {
     private val queryPort = RecordingHomeFollowingQueryPort()
     private val memberContentPreferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
-    private val langContext = LangContext()
     private val creatorCommunityTranslationService = Mockito.mock(CreatorCommunityTranslationService::class.java)
     private val now = LocalDateTime.of(2026, 6, 25, 12, 0)
     private val service = HomeFollowingQueryService(
         queryPort,
         memberContentPreferenceService,
-        langContext,
         creatorCommunityTranslationService
     ) { now }
 
@@ -45,7 +42,7 @@ class HomeFollowingQueryServiceTest {
         val member = member(10L)
         Mockito.`when`(memberContentPreferenceService.canViewAdultContent(member)).thenReturn(true)
 
-        val home = service.findHomeFollowing(member)
+        val home = service.findHomeFollowing(member, Lang.KO)
 
         assertEquals(listOf(HomeFollowingCreator(1L, "creator", "profile")), home.followingCreators)
         assertEquals(emptyList<Any>(), home.recentChats)
@@ -63,7 +60,7 @@ class HomeFollowingQueryServiceTest {
         val member = member(11L)
         Mockito.`when`(memberContentPreferenceService.canViewAdultContent(member)).thenReturn(false)
 
-        service.findHomeFollowing(member)
+        service.findHomeFollowing(member, Lang.KO)
 
         assertEquals(false, queryPort.onAirCanViewAdultContent)
         assertEquals(false, queryPort.monthlySchedulesCanViewAdultContent)
@@ -81,7 +78,7 @@ class HomeFollowingQueryServiceTest {
         }
         Mockito.`when`(memberContentPreferenceService.canViewAdultContent(member)).thenReturn(true)
 
-        service.findHomeFollowing(member)
+        service.findHomeFollowing(member, Lang.KO)
 
         assertEquals(Gender.FEMALE, queryPort.onAirEffectiveViewerGender)
         assertEquals(Gender.FEMALE, queryPort.monthlySchedulesEffectiveViewerGender)
@@ -99,14 +96,13 @@ class HomeFollowingQueryServiceTest {
             val defaultService = HomeFollowingQueryService(
                 defaultQueryPort,
                 memberContentPreferenceService,
-                langContext,
                 creatorCommunityTranslationService
             )
             val member = member(12L)
             Mockito.`when`(memberContentPreferenceService.canViewAdultContent(member)).thenReturn(true)
             val beforeUtc = LocalDateTime.now(ZoneOffset.UTC).minusSeconds(1)
 
-            defaultService.findHomeFollowing(member)
+            defaultService.findHomeFollowing(member, Lang.KO)
 
             val afterUtc = LocalDateTime.now(ZoneOffset.UTC).plusSeconds(1)
             val capturedNow = defaultQueryPort.recentNewsNow!!
@@ -121,9 +117,9 @@ class HomeFollowingQueryServiceTest {
     @Test
     @DisplayName("팔로잉 최근 소식은 커뮤니티 게시물만 영어 표시 본문으로 일괄 치환하고 다른 소식과 원문 폴백을 유지한다")
     fun shouldTranslateOnlyCommunityPostNewsInOneEnglishBatch() {
-        langContext.setLang(Lang.EN)
         val translatedNews = communityNews("community-1", 101L, "original-1")
         val audioNews = HomeFollowingNews(
+            creatorMemberId = 10L,
             newsId = "audio-1",
             type = FollowingNewsType.AUDIO_CONTENT,
             visibleFromAtUtc = "2026-06-25T11:59:00Z"
@@ -138,7 +134,7 @@ class HomeFollowingQueryServiceTest {
                 )
             )
 
-        val home = service.findHomeFollowing(member(14L))
+        val home = service.findHomeFollowing(member(14L), Lang.EN)
 
         assertEquals("translated-1-en", home.recentNews[0].communityPost?.content)
         assertEquals(audioNews, home.recentNews[1])
@@ -153,6 +149,7 @@ class HomeFollowingQueryServiceTest {
 
     private fun communityNews(newsId: String, postId: Long, content: String): HomeFollowingNews {
         return HomeFollowingNews(
+            creatorMemberId = 10L,
             newsId = newsId,
             type = FollowingNewsType.COMMUNITY_POST,
             visibleFromAtUtc = "2026-06-25T12:00:00Z",
@@ -186,7 +183,7 @@ class HomeFollowingQueryServiceTest {
         var recentNewsCanViewAdultContent: Boolean? = null
         var recentNews: List<HomeFollowingNews> = emptyList()
 
-        override fun findFollowingCreators(memberId: Long, limit: Int): List<HomeFollowingCreator> {
+        override fun findFollowingCreators(memberId: Long, limit: Int, lang: Lang): List<HomeFollowingCreator> {
             this.memberId = memberId
             followingCreatorsLimit = limit
             return listOf(HomeFollowingCreator(1L, "creator", "profile"))
@@ -197,7 +194,8 @@ class HomeFollowingQueryServiceTest {
             canViewAdultContent: Boolean,
             effectiveViewerGender: Gender,
             isViewerCreator: Boolean,
-            limit: Int
+            limit: Int,
+            lang: Lang
         ): List<HomeFollowingLive> {
             onAirCanViewAdultContent = canViewAdultContent
             onAirEffectiveViewerGender = effectiveViewerGender
@@ -212,7 +210,8 @@ class HomeFollowingQueryServiceTest {
             effectiveViewerGender: Gender,
             isViewerCreator: Boolean,
             now: LocalDateTime,
-            limit: Int
+            limit: Int,
+            lang: Lang
         ): List<HomeFollowingSchedule> {
             monthlySchedulesCanViewAdultContent = canViewAdultContent
             monthlySchedulesEffectiveViewerGender = effectiveViewerGender
@@ -226,7 +225,8 @@ class HomeFollowingQueryServiceTest {
             memberId: Long,
             canViewAdultContent: Boolean,
             nowUtc: LocalDateTime,
-            limit: Int
+            limit: Int,
+            lang: Lang
         ): List<HomeFollowingNews> {
             recentNewsCanViewAdultContent = canViewAdultContent
             recentNewsNow = nowUtc

src/test/kotlin/kr/co/vividnext/sodalive/v2/ranking/adapter/out/persistence/DefaultCreatorRankingSnapshotRepositoryTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.ranking.adapter.out.persistence
 
 import kr.co.vividnext.sodalive.configs.QueryDslConfig
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.v2.ranking.domain.CreatorRankingScoreSpec
 import kr.co.vividnext.sodalive.v2.ranking.domain.CreatorRankingType
 import kr.co.vividnext.sodalive.v2.ranking.port.out.CreatorRankingSnapshotRecord
@@ -98,7 +99,7 @@ class DefaultCreatorRankingSnapshotRepositoryTest @Autowired constructor(
             )
         )
 
-        val latestVisible = adapter.findLatestVisibleSnapshots(CreatorRankingType.WEEKLY, NOW)
+        val latestVisible = adapter.findLatestVisibleSnapshots(CreatorRankingType.WEEKLY, NOW, Lang.KO)
 
         assertEquals(listOf(3L, 4L, 2L), latestVisible.map { it.creatorId })
         assertEquals(listOf(1, 2, 3), latestVisible.map { it.rankNo })

src/test/kotlin/kr/co/vividnext/sodalive/v2/ranking/application/CreatorRankingQueryServiceTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.ranking.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.v2.ranking.domain.CreatorRankingType
 import kr.co.vividnext.sodalive.v2.ranking.port.out.CreatorRankingBlockPort
 import kr.co.vividnext.sodalive.v2.ranking.port.out.CreatorRankingSnapshotPort
@@ -19,7 +20,11 @@ class CreatorRankingQueryServiceTest {
     @Test
     @DisplayName("fallback refresh 후 재조회가 같은 read-only transaction에 묶이지 않도록 조회 메서드에는 Transactional이 없다")
     fun shouldNotWrapQueryMethodWithTransactional() {
-        val method = CreatorRankingQueryService::class.java.getDeclaredMethod("getCreatorRankings", java.lang.Long::class.java)
+        val method = CreatorRankingQueryService::class.java.getDeclaredMethod(
+            "getCreatorRankings",
+            java.lang.Long::class.java,
+            Lang::class.java
+        )
 
         assertFalse(method.isAnnotationPresent(Transactional::class.java))
     }
@@ -32,7 +37,7 @@ class CreatorRankingQueryServiceTest {
         snapshotPort.latestResponses = ArrayDeque(listOf(emptyList(), listOf(snapshot(1, rankNo = 1))))
         val service = service(snapshotPort = snapshotPort, snapshotJobService = jobService)
 
-        val result = service.getCreatorRankings(viewerMemberId = null)
+        val result = service.getCreatorRankings(viewerMemberId = null, lang = Lang.KO)
 
         Mockito.verify(jobService).refreshLastCompletedWeekByFallback()
         assertEquals(2, snapshotPort.latestCallCount)
@@ -48,7 +53,7 @@ class CreatorRankingQueryServiceTest {
         Mockito.doThrow(IllegalStateException("fallback failed")).`when`(jobService).refreshLastCompletedWeekByFallback()
         val service = service(snapshotPort = snapshotPort, snapshotJobService = jobService)
 
-        val result = service.getCreatorRankings(viewerMemberId = null)
+        val result = service.getCreatorRankings(viewerMemberId = null, lang = Lang.KO)
 
         assertFalse(result.showRankChange)
         assertTrue(result.items.isEmpty())
@@ -66,7 +71,7 @@ class CreatorRankingQueryServiceTest {
         snapshotPort.previousSnapshots = listOf(snapshot(1, rankNo = 1), snapshot(2, rankNo = 2))
         val service = service(snapshotPort = snapshotPort, snapshotJobService = jobService)
 
-        val result = service.getCreatorRankings(viewerMemberId = null)
+        val result = service.getCreatorRankings(viewerMemberId = null, lang = Lang.KO)
 
         Mockito.verify(jobService, Mockito.never()).refreshLastCompletedWeekByFallback()
         assertTrue(result.showRankChange)
@@ -86,7 +91,7 @@ class CreatorRankingQueryServiceTest {
         blockPort.blockedCreatorIds = setOf(2L)
         val service = service(snapshotPort = snapshotPort, blockPort = blockPort)
 
-        val result = service.getCreatorRankings(viewerMemberId = 99L)
+        val result = service.getCreatorRankings(viewerMemberId = 99L, lang = Lang.KO)
 
         assertEquals(listOf(1, 2), result.items.map { it.rank })
         assertEquals(0L, result.items[1].creatorId)
@@ -133,7 +138,8 @@ private class FakeCreatorRankingQuerySnapshotPort : CreatorRankingSnapshotPort {
 
     override fun findLatestVisibleSnapshots(
         rankingType: CreatorRankingType,
-        nowUtc: LocalDateTime
+        nowUtc: LocalDateTime,
+        lang: Lang
     ): List<CreatorRankingSnapshotRecord> {
         latestCallCount++
         return if (latestResponses.size > 1) {

src/test/kotlin/kr/co/vividnext/sodalive/v2/ranking/application/CreatorRankingSnapshotRefreshServiceTest.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.v2.ranking.application
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.v2.home.following.application.HomeFollowingNewsPublishService
 import kr.co.vividnext.sodalive.v2.ranking.domain.CreatorRankingScoreSpec
 import kr.co.vividnext.sodalive.v2.ranking.domain.CreatorRankingSnapshotCandidate
@@ -120,7 +121,7 @@ private class FakeCreatorRankingSnapshotPort : CreatorRankingSnapshotPort {
     ) = snapshots
     override fun findLatestSnapshots() = snapshots
     override fun findPreviousCompletedSnapshots() = snapshots
-    override fun findLatestVisibleSnapshots(rankingType: CreatorRankingType, nowUtc: LocalDateTime) = snapshots
+    override fun findLatestVisibleSnapshots(rankingType: CreatorRankingType, nowUtc: LocalDateTime, lang: Lang) = snapshots
     override fun findPreviousVisibleSnapshots(
         rankingType: CreatorRankingType,
         currentAggregationStartAtUtc: LocalDateTime,

src/test/kotlin/kr/co/vividnext/sodalive/v2/recommendation/adapter/out/persistence/DefaultHomeRecommendationQueryRepositoryTest.kt

@@ -89,7 +89,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         }
         flushAndClear()
 
-        val lives = repository.findLiveRecommendations(limit = 20, includeAdultLives = false)
+        val lives = repository.findLiveRecommendations(limit = 20, includeAdultLives = false, lang = Lang.KO)
 
         assertEquals(20, lives.size)
         assertEquals(true, lives.zipWithNext().all { it.first.liveRoomId > it.second.liveRoomId })
@@ -109,8 +109,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         val oldest = saveLiveRoom(creator, baseAt, channelName = "paged-live-oldest", isAdult = false)
         flushAndClear()
 
-        val page0 = repository.findLiveRecommendations(offset = 0L, limit = 3, includeAdultLives = false)
-        val page1 = repository.findLiveRecommendations(offset = 2L, limit = 3, includeAdultLives = false)
+        val page0 = repository.findLiveRecommendations(offset = 0L, limit = 3, includeAdultLives = false, lang = Lang.KO)
+        val page1 = repository.findLiveRecommendations(offset = 2L, limit = 3, includeAdultLives = false, lang = Lang.KO)
 
         assertEquals(listOf(newest.id, middle.id, oldest.id), page0.map { it.liveRoomId })
         assertEquals(listOf(oldest.id), page1.map { it.liveRoomId })
@@ -135,7 +135,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             offset = 0,
             limit = 1,
             memberId = viewer.id,
-            includeAdultLives = true
+            includeAdultLives = true,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(live.id), lives.map { it.liveRoomId })
@@ -170,7 +171,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             offset = 0,
             limit = 10,
             memberId = viewer.id,
-            includeAdultLives = false
+            includeAdultLives = false,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(newerVisibleLive.id, olderVisibleLive.id), lives.map { it.liveRoomId })
@@ -191,7 +193,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         saveBlock(creatorBlockedViewer, viewer)
         flushAndClear()
 
-        val lives = repository.findLiveRecommendations(limit = 10, memberId = viewer.id)
+        val lives = repository.findLiveRecommendations(limit = 10, memberId = viewer.id, lang = Lang.KO)
 
         assertEquals(listOf(visibleLive.id), lives.map { it.liveRoomId })
     }
@@ -221,7 +223,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             limit = 10,
             memberId = viewer.id,
             isViewerCreator = true,
-            effectiveViewerGender = Gender.NONE
+            effectiveViewerGender = Gender.NONE,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(ownerLive.id, availableLive.id), lives.map { it.liveRoomId })
@@ -244,7 +247,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             limit = 10,
             memberId = viewer.id,
             isViewerCreator = false,
-            effectiveViewerGender = Gender.NONE
+            effectiveViewerGender = Gender.NONE,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(restrictedLive.id), lives.map { it.liveRoomId })
@@ -281,7 +285,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             limit = 10,
             memberId = viewer.id,
             isViewerCreator = true,
-            effectiveViewerGender = Gender.MALE
+            effectiveViewerGender = Gender.MALE,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(ownerLive.id, allLive.id, maleOnlyLive.id), lives.map { it.liveRoomId })
@@ -311,7 +316,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             limit = 10,
             memberId = viewer.id,
             isViewerCreator = true,
-            effectiveViewerGender = Gender.FEMALE
+            effectiveViewerGender = Gender.FEMALE,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(ownerLive.id, femaleOnlyLive.id), lives.map { it.liveRoomId })
@@ -341,7 +347,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         val lives = repository.findLiveRecommendations(
             limit = 10,
             memberId = viewer.id,
-            effectiveViewerGender = Gender.FEMALE
+            effectiveViewerGender = Gender.FEMALE,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(femaleOnlyLive.id, allLive.id), lives.map { it.liveRoomId })
@@ -371,12 +378,14 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         val noneGenderLives = repository.findLiveRecommendations(
             limit = 10,
             memberId = viewer.id,
-            effectiveViewerGender = Gender.NONE
+            effectiveViewerGender = Gender.NONE,
+            lang = Lang.KO
         )
         val nullGenderLives = repository.findLiveRecommendations(
             limit = 10,
             memberId = viewer.id,
-            effectiveViewerGender = null
+            effectiveViewerGender = null,
+            lang = Lang.KO
         )
 
         val expectedIds = listOf(allLive.id, femaleOnlyLive.id, maleOnlyLive.id)
@@ -659,7 +668,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         updateCreatedAt("CreatorCommunity", community.id!!, baseAt.minusHours(3))
         flushAndClear()
 
-        val creators = repository.findRecentlyActiveCreators(limit = 10)
+        val creators = repository.findRecentlyActiveCreators(limit = 10, lang = Lang.KO)
         val byCreatorNickname = creators.associateBy { it.creatorNickname }
 
         assertEquals(4, creators.size)
@@ -699,7 +708,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         saveLiveRoom(emptyChannelCreator, baseAt, channelName = "", isActive = false)
         flushAndClear()
 
-        val creators = repository.findRecentlyActiveCreators(limit = 10)
+        val creators = repository.findRecentlyActiveCreators(limit = 10, lang = Lang.KO)
 
         assertEquals(listOf(inactiveLiveCreator.nickname), creators.map { it.creatorNickname })
         assertEquals(inactiveLiveCreator.id, creators.single().creatorId)
@@ -723,8 +732,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         updateCreatedAt("CreatorCommunity", adultCommunity.id!!, baseAt)
         flushAndClear()
 
-        val hiddenCreators = repository.findRecentlyActiveCreators(limit = 10, includeAdultActivities = false)
-        val visibleCreators = repository.findRecentlyActiveCreators(limit = 10, includeAdultActivities = true)
+        val hiddenCreators = repository.findRecentlyActiveCreators(limit = 10, includeAdultActivities = false, lang = Lang.KO)
+        val visibleCreators = repository.findRecentlyActiveCreators(limit = 10, includeAdultActivities = true, lang = Lang.KO)
 
         assertEquals(listOf(normalLiveCreator.nickname), hiddenCreators.map { it.creatorNickname })
         assertEquals(
@@ -762,7 +771,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         saveBlock(creatorBlockedViewer, viewer)
         flushAndClear()
 
-        val creators = repository.findRecentlyActiveCreators(limit = 10, memberId = viewer.id)
+        val creators = repository.findRecentlyActiveCreators(limit = 10, memberId = viewer.id, lang = Lang.KO)
 
         assertEquals(listOf(visibleCreator.nickname), creators.map { it.creatorNickname })
         assertEquals(CreatorActivityType.COMMUNITY, creators.single().activityType)
@@ -779,7 +788,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         updateCreatedAt("CreatorCommunity", community.id!!, baseAt.plusMinutes(1))
         flushAndClear()
 
-        val creators = repository.findRecentlyActiveCreators(limit = 10)
+        val creators = repository.findRecentlyActiveCreators(limit = 10, lang = Lang.KO)
 
         assertEquals(listOf(visibleCreator.nickname), creators.map { it.creatorNickname })
         assertEquals(CreatorActivityType.COMMUNITY, creators.single().activityType)
@@ -1597,7 +1606,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         updateCreatedAt("Member", newHighScoreCreator.id!!, now.minusDays(60))
         flushAndClear()
 
-        val creators = repository.findRecentDebutCreators(now, limit = 10)
+        val creators = repository.findRecentDebutCreators(now, limit = 10, lang = Lang.KO)
 
         assertEquals(listOf(newHighScoreCreator.id, newLowScoreCreator.id), creators.map { it.creatorId })
     }
@@ -1623,7 +1632,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         )
         flushAndClear()
 
-        val creators = repository.findRecentDebutCreators(now, limit = 10)
+        val creators = repository.findRecentDebutCreators(now, limit = 10, lang = Lang.KO)
 
         assertEquals(listOf(endedLiveCreator.id), creators.map { it.creatorId })
     }
@@ -1647,7 +1656,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         updateCreatedAt("AudioContentLike", baseLike2.id!!, now.minusDays(1))
         flushAndClear()
 
-        val creators = repository.findRecentDebutCreators(now, limit = 2)
+        val creators = repository.findRecentDebutCreators(now, limit = 2, lang = Lang.KO)
 
         assertEquals(listOf(boostedCreator.id, baseCreator.id), creators.map { it.creatorId })
     }
@@ -1671,8 +1680,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         updateCreatedAt("AudioContentLike", like.id!!, now.minusHours(1))
         flushAndClear()
 
-        val page0 = repository.findRecentDebutCreators(now, offset = 0L, limit = 2, includeAdultContents = false)
-        val page1 = repository.findRecentDebutCreators(now, offset = 1L, limit = 2, includeAdultContents = false)
+        val page0 = repository.findRecentDebutCreators(now, offset = 0L, limit = 2, includeAdultContents = false, lang = Lang.KO)
+        val page1 = repository.findRecentDebutCreators(now, offset = 1L, limit = 2, includeAdultContents = false, lang = Lang.KO)
 
         assertEquals(listOf(normalNewest.id, normalOldest.id), page0.map { it.creatorId })
         assertEquals(listOf(normalOldest.id), page1.map { it.creatorId })
@@ -1693,7 +1702,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         saveBlock(creatorBlockedViewer, viewer)
         flushAndClear()
 
-        val creators = repository.findRecentDebutCreators(now, limit = 10, memberId = viewer.id)
+        val creators = repository.findRecentDebutCreators(now, limit = 10, memberId = viewer.id, lang = Lang.KO)
 
         assertEquals(listOf(visibleCreator.id), creators.map { it.creatorId })
     }
@@ -1710,9 +1719,9 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         saveAudioContent(creator3, now.minusDays(5), isActive = true)
         flushAndClear()
 
-        val page0 = repository.findRecentDebutCreators(now, offset = 0L, limit = 1, includeAdultContents = false)
-        val page1 = repository.findRecentDebutCreators(now, offset = 1L, limit = 1, includeAdultContents = false)
-        val page2 = repository.findRecentDebutCreators(now, offset = 2L, limit = 1, includeAdultContents = false)
+        val page0 = repository.findRecentDebutCreators(now, offset = 0L, limit = 1, includeAdultContents = false, lang = Lang.KO)
+        val page1 = repository.findRecentDebutCreators(now, offset = 1L, limit = 1, includeAdultContents = false, lang = Lang.KO)
+        val page2 = repository.findRecentDebutCreators(now, offset = 2L, limit = 1, includeAdultContents = false, lang = Lang.KO)
 
         val pagedCreatorIds = (page0 + page1 + page2).map { it.creatorId }
         assertEquals(setOf(creator1.id, creator2.id, creator3.id), pagedCreatorIds.toSet())
@@ -1729,7 +1738,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         saveAudioContent(creator2, now.minusDays(5), isActive = true)
         flushAndClear()
 
-        val creators = repository.findRecentDebutCreators(now, limit = 10)
+        val creators = repository.findRecentDebutCreators(now, limit = 10, lang = Lang.KO)
 
         assertEquals(2, creators.size)
         assertEquals(setOf(creator1.id, creator2.id), creators.map { it.creatorId }.toSet())
@@ -2111,7 +2120,10 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         val inactiveCreator = saveMember("cheer-detail-inactive", MemberRole.CREATOR, isActive = false)
         flushAndClear()
 
-        val details = repository.findCheerCreatorRecommendationDetails(listOf(activeCreator.id!!, inactiveCreator.id!!, 999L))
+        val details = repository.findCheerCreatorRecommendationDetails(
+            listOf(activeCreator.id!!, inactiveCreator.id!!, 999L),
+            lang = Lang.KO
+        )
 
         val detailById = details.associateBy { it.creatorId }
         assertEquals(setOf(activeCreator.id), detailById.keys)
@@ -2131,7 +2143,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
 
         val details = repository.findCheerCreatorRecommendationDetails(
             listOf(viewerBlockedCreator.id!!, creatorBlockedViewer.id!!, visibleCreator.id!!),
-            memberId = viewer.id
+            memberId = viewer.id,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(visibleCreator.id), details.map { it.creatorId })
@@ -2150,7 +2163,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
 
         val details = repository.findCheerCreatorRecommendationDetails(
             listOf(viewer.id!!, activeFollowedCreator.id!!, inactiveFollowedCreator.id!!, visibleCreator.id!!),
-            memberId = viewer.id
+            memberId = viewer.id,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(inactiveFollowedCreator.id, visibleCreator.id), details.map { it.creatorId })
@@ -2167,7 +2181,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
 
         val details = repository.findCheerCreatorRecommendationDetails(
             listOf(viewer.id!!, activeFollowedCreator.id!!, visibleCreator.id!!),
-            memberId = null
+            memberId = null,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(viewer.id, activeFollowedCreator.id, visibleCreator.id), details.map { it.creatorId })
@@ -2178,7 +2193,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
     fun shouldReturnEmptyCheerCreatorRecommendationDetailsWhenIdsAreEmpty() {
         assertEquals(
             emptyList<HomeCheerCreatorRecommendationRecord>(),
-            repository.findCheerCreatorRecommendationDetails(emptyList())
+            repository.findCheerCreatorRecommendationDetails(emptyList(), lang = Lang.KO)
         )
     }
 
@@ -2216,7 +2231,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         val details = repository.findPopularCommunityRecommendationDetails(
             listOf(eligible.id!!, paid.id!!, fixed.id!!, adult.id!!, inactivePost.id!!, inactiveCreatorPost.id!!, 999L),
             memberId = member.id,
-            includeAdultCommunities = false
+            includeAdultCommunities = false,
+            lang = Lang.KO
         )
 
         val detailById = details.associateBy { it.communityId }
@@ -2244,7 +2260,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         val details = repository.findPopularCommunityRecommendationDetails(
             listOf(free.id!!),
             memberId = null,
-            includeAdultCommunities = false
+            includeAdultCommunities = false,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(free.id), details.map { it.communityId })
@@ -2265,7 +2282,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
 
         val details = repository.findPopularCommunityRecommendationDetails(
             listOf(adult.id!!),
-            includeAdultCommunities = true
+            includeAdultCommunities = true,
+            lang = Lang.KO
         )
 
         val detailById = details.associateBy { it.communityId }
@@ -2290,7 +2308,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         val details = repository.findPopularCommunityRecommendationDetails(
             listOf(viewerBlockedPost.id!!, creatorBlockedPost.id!!, visiblePost.id!!),
             memberId = viewer.id,
-            includeAdultCommunities = false
+            includeAdultCommunities = false,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(visiblePost.id), details.map { it.communityId })
@@ -2301,7 +2320,7 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
     fun shouldReturnEmptyPopularCommunityRecommendationDetailsWhenIdsAreEmpty() {
         assertEquals(
             emptyList<HomePopularCommunityRecommendationRecord>(),
-            repository.findPopularCommunityRecommendationDetails(emptyList(), includeAdultCommunities = false)
+            repository.findPopularCommunityRecommendationDetails(emptyList(), includeAdultCommunities = false, lang = Lang.KO)
         )
     }
 
@@ -2347,7 +2366,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             includeAdultGenres = false,
             genreLimit = 2,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(2, recommendations.size)
@@ -2377,7 +2397,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             includeAdultGenres = false,
             genreLimit = 1,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(theme.id), recommendations.map { it.genreId })
@@ -2417,7 +2438,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             includeAdultGenres = false,
             genreLimit = 1,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(fallbackTheme.id), recommendations.map { it.genreId })
@@ -2446,7 +2468,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             includeAdultGenres = false,
             genreLimit = 1,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
         val creatorIds = recommendations.single().creators.map { it.creatorId }
 
@@ -2477,7 +2500,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             includeAdultGenres = false,
             genreLimit = 1,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
         val creatorIds = recommendations.single().creators.map { it.creatorId }
 
@@ -2500,7 +2524,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = null,
             includeAdultGenres = false,
             genreLimit = 1,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(theme.id, recommendations.single().genreId)
@@ -2551,7 +2576,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             includeAdultGenres = false,
             genreLimit = 2,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(2, recommendations.size)
@@ -2589,7 +2615,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = null,
             includeAdultGenres = false,
             genreLimit = 5,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(true, recommendations.size >= 5)
@@ -2633,7 +2660,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = viewer.id!!,
             includeAdultGenres = false,
             genreLimit = 5,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(true, recommendations.size >= 5)
@@ -2664,7 +2692,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = null,
             includeAdultGenres = false,
             genreLimit = 2,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(3, recommendations.size)
@@ -2695,7 +2724,8 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = null,
             includeAdultGenres = false,
             genreLimit = 1,
-            creatorLimit = 2
+            creatorLimit = 2,
+            lang = Lang.KO
         )
 
         assertEquals(1, recommendations.size)
@@ -2724,13 +2754,15 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
             memberId = null,
             includeAdultGenres = false,
             genreLimit = 5,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
         val visible = repository.findGenreCreatorRecommendations(
             memberId = null,
             includeAdultGenres = true,
             genreLimit = 5,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(false, hidden.any { it.genreId == adultTheme.id })

src/test/kotlin/kr/co/vividnext/sodalive/v2/recommendation/application/HomeRecommendationQueryServiceTest.kt

@@ -1,7 +1,6 @@
 package kr.co.vividnext.sodalive.v2.recommendation.application
 
 import kr.co.vividnext.sodalive.i18n.Lang
-import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Gender
 import kr.co.vividnext.sodalive.v2.common.domain.CreatorActivityType
 import kr.co.vividnext.sodalive.v2.creator.channel.community.translation.application.CreatorCommunityDisplayContent
@@ -32,12 +31,10 @@ import java.time.ZoneOffset
 class HomeRecommendationQueryServiceTest {
     private val port = FakeHomeRecommendationQueryPort()
     private val snapshotPort = FakeHomeRecommendationSnapshotPort()
-    private val langContext = LangContext()
     private val creatorCommunityTranslationService = Mockito.mock(CreatorCommunityTranslationService::class.java)
     private val service = HomeRecommendationQueryService(
         port,
         snapshotPort,
-        langContext = langContext,
         creatorCommunityTranslationService = creatorCommunityTranslationService
     )
 
@@ -79,7 +76,7 @@ class HomeRecommendationQueryServiceTest {
     @Test
     @DisplayName("홈 라이브 추천은 기본 20개를 최신순 조회 포트에 위임한다")
     fun shouldFindLatestLiveRecommendationsWithDefaultLimit() {
-        val recommendations = service.findLiveRecommendations(memberId = 100L)
+        val recommendations = service.findLiveRecommendations(memberId = 100L, lang = Lang.KO)
 
         assertEquals(20, port.liveLimit)
         assertEquals(100L, port.liveMemberId)
@@ -95,7 +92,8 @@ class HomeRecommendationQueryServiceTest {
             memberId = 100L,
             includeAdultLives = true,
             isViewerCreator = true,
-            effectiveViewerGender = Gender.MALE
+            effectiveViewerGender = Gender.MALE,
+            lang = Lang.KO
         )
 
         assertEquals(40, port.liveOffset)
@@ -131,7 +129,7 @@ class HomeRecommendationQueryServiceTest {
     @Test
     @DisplayName("최근 활동 크리에이터는 기본 10개를 최신 활동 조회 포트에 위임한다")
     fun shouldFindRecentlyActiveCreatorsWithDefaultLimit() {
-        val creators = service.findRecentlyActiveCreators(memberId = 100L)
+        val creators = service.findRecentlyActiveCreators(memberId = 100L, lang = Lang.KO)
 
         assertEquals(10, port.activeCreatorLimit)
         assertEquals(100L, port.activeCreatorMemberId)
@@ -142,7 +140,12 @@ class HomeRecommendationQueryServiceTest {
     @Test
     @DisplayName("최근 활동 크리에이터는 성인 활동 노출 여부를 조회 포트에 위임한다")
     fun shouldFindRecentlyActiveCreatorsWithAdultVisibilityPolicy() {
-        val creators = service.findRecentlyActiveCreators(limit = 8, memberId = 101L, includeAdultActivities = true)
+        val creators = service.findRecentlyActiveCreators(
+            limit = 8,
+            memberId = 101L,
+            includeAdultActivities = true,
+            lang = Lang.KO
+        )
 
         assertEquals(8, port.activeCreatorLimit)
         assertEquals(101L, port.activeCreatorMemberId)
@@ -155,7 +158,7 @@ class HomeRecommendationQueryServiceTest {
     fun shouldFindRecentDebutCreatorsWithDefaultLimitAndNow() {
         val now = LocalDateTime.of(2026, 5, 31, 10, 0)
 
-        val creators = service.findRecentDebutCreators(now, memberId = 102L)
+        val creators = service.findRecentDebutCreators(now, memberId = 102L, lang = Lang.KO)
 
         assertEquals(now, port.recentDebutNow)
         assertEquals(102L, port.recentDebutMemberId)
@@ -168,7 +171,7 @@ class HomeRecommendationQueryServiceTest {
     fun shouldFindFirstAudioContentsWithDefaultLimitAndNow() {
         val now = LocalDateTime.of(2026, 5, 31, 10, 0)
 
-        val contents = service.findFirstAudioContents(now, memberId = 103L)
+        val contents = service.findFirstAudioContents(now, memberId = 103L, lang = Lang.KO)
 
         assertEquals(now, port.firstAudioNow)
         assertEquals(103L, port.firstAudioMemberId)
@@ -185,7 +188,6 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             fallback,
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         val oldSnapshotAt = LocalDateTime.of(2026, 5, 28, 23, 59, 59)
@@ -293,7 +295,6 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             fallback,
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         port.aiCharacterDetails = listOf(
@@ -324,7 +325,6 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             fallback,
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
 
@@ -346,7 +346,6 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             fallback,
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         snapshotPort.replaceSnapshots(
@@ -375,7 +374,6 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             fallback,
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         val snapshotAt = LocalDateTime.of(2026, 7, 9, 14, 59, 59)
@@ -408,7 +406,6 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             fallback,
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         val snapshotAt = LocalDateTime.of(2026, 7, 9, 14, 59, 59)
@@ -435,7 +432,6 @@ class HomeRecommendationQueryServiceTest {
             snapshotPort,
             cheerCreatorSnapshotFallbackService = fallback,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         val snapshotAt = LocalDateTime.of(2026, 7, 9, 14, 59, 59)
@@ -459,7 +455,7 @@ class HomeRecommendationQueryServiceTest {
             )
         )
 
-        val creators = service.findCheerCreatorRecommendations(memberId = 104L)
+        val creators = service.findCheerCreatorRecommendations(memberId = 104L, lang = Lang.KO)
 
         assertEquals(null, fallback.offset)
         assertEquals(null, fallback.limit)
@@ -480,7 +476,6 @@ class HomeRecommendationQueryServiceTest {
             snapshotPort,
             cheerCreatorSnapshotFallbackService = fallback,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         port.cheerCreatorDetails = listOf(
@@ -491,7 +486,7 @@ class HomeRecommendationQueryServiceTest {
             )
         )
 
-        val creators = service.findCheerCreatorRecommendations(memberId = 104L)
+        val creators = service.findCheerCreatorRecommendations(memberId = 104L, lang = Lang.KO)
 
         assertEquals(0L, fallback.offset)
         assertEquals(16, fallback.limit)
@@ -511,7 +506,6 @@ class HomeRecommendationQueryServiceTest {
             snapshotPort,
             cheerCreatorSnapshotFallbackService = fallback,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         val staleSnapshotAt = LocalDateTime.of(2026, 7, 8, 14, 59, 59)
@@ -528,7 +522,7 @@ class HomeRecommendationQueryServiceTest {
             )
         )
 
-        val creators = service.findCheerCreatorRecommendations(memberId = 104L)
+        val creators = service.findCheerCreatorRecommendations(memberId = 104L, lang = Lang.KO)
 
         assertEquals(0L, fallback.offset)
         assertEquals(16, fallback.limit)
@@ -548,7 +542,6 @@ class HomeRecommendationQueryServiceTest {
             snapshotPort,
             cheerCreatorSnapshotFallbackService = fallback,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         snapshotPort.replaceSnapshots(
@@ -557,7 +550,7 @@ class HomeRecommendationQueryServiceTest {
             emptyList()
         )
 
-        val creators = service.findCheerCreatorRecommendations(memberId = 104L)
+        val creators = service.findCheerCreatorRecommendations(memberId = 104L, lang = Lang.KO)
 
         assertEquals(null, fallback.offset)
         assertEquals(null, fallback.limit)
@@ -572,7 +565,6 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         val snapshotAt = LocalDateTime.of(2026, 7, 9, 14, 59, 59)
@@ -631,7 +623,11 @@ class HomeRecommendationQueryServiceTest {
             )
         )
 
-        val communities = service.findPopularCommunityRecommendations(memberId = 105L, includeAdultCommunities = true)
+        val communities = service.findPopularCommunityRecommendations(
+            memberId = 105L,
+            includeAdultCommunities = true,
+            lang = Lang.KO
+        )
 
         assertEquals((1L..11L).toList(), port.popularCommunityDetailIds)
         assertEquals(105L, port.popularCommunityMemberId)
@@ -652,7 +648,6 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         val snapshotAt = LocalDateTime.of(2026, 7, 9, 14, 59, 59)
@@ -681,7 +676,7 @@ class HomeRecommendationQueryServiceTest {
             )
         }
 
-        val communities = service.findPopularCommunityRecommendations()
+        val communities = service.findPopularCommunityRecommendations(lang = Lang.KO)
 
         assertEquals(20, port.popularCommunityDetailIds.size)
         assertEquals(10, communities.size)
@@ -692,7 +687,6 @@ class HomeRecommendationQueryServiceTest {
     @Test
     @DisplayName("인기 커뮤니티 추천은 최종 노출 게시물만 일본어 표시 본문으로 일괄 치환하고 원문 폴백을 유지한다")
     fun shouldTranslateOnlyFinalPopularCommunityRecommendationsInOneJapaneseBatch() {
-        langContext.setLang(Lang.JA)
         val snapshotAt = LocalDateTime.of(2026, 7, 9, 14, 59, 59)
         snapshotPort.replaceSnapshots(
             RecommendedSectionType.POPULAR_COMMUNITY,
@@ -718,11 +712,10 @@ class HomeRecommendationQueryServiceTest {
             port,
             snapshotPort,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
 
-        val communities = translatedService.findPopularCommunityRecommendations(limit = 2)
+        val communities = translatedService.findPopularCommunityRecommendations(limit = 2, lang = Lang.JA)
 
         assertEquals(listOf(1L, 3L), communities.map { it.communityId })
         assertEquals(listOf("translated-1-ja", "current-original-3"), communities.map { it.content })
@@ -741,7 +734,6 @@ class HomeRecommendationQueryServiceTest {
             snapshotPort,
             popularCommunitySnapshotFallbackService = fallback,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         val staleSnapshotAt = LocalDateTime.of(2026, 7, 8, 14, 59, 59)
@@ -768,7 +760,7 @@ class HomeRecommendationQueryServiceTest {
             )
         )
 
-        val communities = service.findPopularCommunityRecommendations(memberId = 105L)
+        val communities = service.findPopularCommunityRecommendations(memberId = 105L, lang = Lang.KO)
 
         assertEquals(0L, fallback.offset)
         assertEquals(20, fallback.limit)
@@ -788,7 +780,6 @@ class HomeRecommendationQueryServiceTest {
             snapshotPort,
             popularCommunitySnapshotFallbackService = fallback,
             clock = fixedClock(),
-            langContext = langContext,
             creatorCommunityTranslationService = creatorCommunityTranslationService
         )
         snapshotPort.replaceSnapshots(
@@ -797,7 +788,7 @@ class HomeRecommendationQueryServiceTest {
             emptyList()
         )
 
-        val communities = service.findPopularCommunityRecommendations(memberId = 105L)
+        val communities = service.findPopularCommunityRecommendations(memberId = 105L, lang = Lang.KO)
 
         assertEquals(null, fallback.offset)
         assertEquals(null, fallback.limit)
@@ -809,8 +800,11 @@ class HomeRecommendationQueryServiceTest {
     @DisplayName("최신 스냅샷이 없으면 AI 캐릭터/최근 응원/인기 커뮤니티 추천은 빈 배열을 반환한다")
     fun shouldReturnEmptyListWhenLatestSnapshotsDoNotExist() {
         assertEquals(emptyList<HomeAiCharacterRecommendationRecord>(), service.findAiCharacterRecommendations())
-        assertEquals(emptyList<HomeCheerCreatorRecommendationRecord>(), service.findCheerCreatorRecommendations())
-        assertEquals(emptyList<HomePopularCommunityRecommendationRecord>(), service.findPopularCommunityRecommendations())
+        assertEquals(emptyList<HomeCheerCreatorRecommendationRecord>(), service.findCheerCreatorRecommendations(lang = Lang.KO))
+        assertEquals(
+            emptyList<HomePopularCommunityRecommendationRecord>(),
+            service.findPopularCommunityRecommendations(lang = Lang.KO)
+        )
     }
 
     @Test
@@ -858,7 +852,8 @@ class HomeRecommendationQueryServiceTest {
 
         val recommendations = service.findGenreCreatorRecommendations(
             memberId = 100L,
-            includeAdultGenres = true
+            includeAdultGenres = true,
+            lang = Lang.KO
         )
 
         assertEquals(100L, port.genreCreatorMemberId)
@@ -912,7 +907,8 @@ class HomeRecommendationQueryServiceTest {
             memberId = 100L,
             includeAdultGenres = false,
             genreLimit = 2,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(1L, 3L), recommendations.map { it.genreId })
@@ -958,7 +954,8 @@ class HomeRecommendationQueryServiceTest {
             memberId = null,
             includeAdultGenres = false,
             genreLimit = 2,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(1L, 3L), recommendations.map { it.genreId })
@@ -1009,7 +1006,8 @@ class HomeRecommendationQueryServiceTest {
             memberId = null,
             includeAdultGenres = false,
             genreLimit = 2,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(1L, 3L), recommendations.map { it.genreId })
@@ -1038,7 +1036,8 @@ class HomeRecommendationQueryServiceTest {
             memberId = 100L,
             includeAdultGenres = false,
             genreLimit = 5,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(1L), recommendations.map { it.genreId })
@@ -1085,7 +1084,8 @@ class HomeRecommendationQueryServiceTest {
             memberId = 100L,
             includeAdultGenres = false,
             genreLimit = 2,
-            creatorLimit = 8
+            creatorLimit = 8,
+            lang = Lang.KO
         )
 
         assertEquals(listOf(1L, 2L), recommendations.map { it.genreId })
@@ -1130,6 +1130,7 @@ class HomeRecommendationQueryServiceTest {
         var genreCreatorCreatorLimit: Int? = null
         val liveRecommendations = listOf(
             HomeLiveRecommendationRecord(
+                creatorMemberId = 10L,
                 liveRoomId = 1L,
                 creatorNickname = "creator",
                 creatorProfileImage = "profile.png",
@@ -1196,7 +1197,8 @@ class HomeRecommendationQueryServiceTest {
             memberId: Long?,
             includeAdultLives: Boolean,
             isViewerCreator: Boolean,
-            effectiveViewerGender: Gender?
+            effectiveViewerGender: Gender?,
+            lang: Lang
         ): List<HomeLiveRecommendationRecord> {
             liveOffset = offset
             liveLimit = limit
@@ -1223,7 +1225,8 @@ class HomeRecommendationQueryServiceTest {
         override fun findRecentlyActiveCreators(
             limit: Int,
             memberId: Long?,
-            includeAdultActivities: Boolean
+            includeAdultActivities: Boolean,
+            lang: Lang
         ): List<RecentlyActiveCreatorRecord> {
             activeCreatorLimit = limit
             activeCreatorMemberId = memberId
@@ -1236,7 +1239,8 @@ class HomeRecommendationQueryServiceTest {
             offset: Long,
             limit: Int,
             memberId: Long?,
-            includeAdultContents: Boolean
+            includeAdultContents: Boolean,
+            lang: Lang
         ): List<RecentDebutCreatorRecord> {
             recentDebutNow = now
             recentDebutOffset = offset
@@ -1299,7 +1303,8 @@ class HomeRecommendationQueryServiceTest {
 
         override fun findCheerCreatorRecommendationDetails(
             creatorIds: List<Long>,
-            memberId: Long?
+            memberId: Long?,
+            lang: Lang
         ): List<HomeCheerCreatorRecommendationRecord> {
             cheerCreatorDetailIds = creatorIds
             cheerCreatorMemberId = memberId
@@ -1309,7 +1314,8 @@ class HomeRecommendationQueryServiceTest {
         override fun findPopularCommunityRecommendationDetails(
             communityIds: List<Long>,
             memberId: Long?,
-            includeAdultCommunities: Boolean
+            includeAdultCommunities: Boolean,
+            lang: Lang
         ): List<HomePopularCommunityRecommendationRecord> {
             popularCommunityDetailIds = communityIds
             popularCommunityMemberId = memberId
@@ -1321,7 +1327,8 @@ class HomeRecommendationQueryServiceTest {
             memberId: Long?,
             includeAdultGenres: Boolean,
             genreLimit: Int,
-            creatorLimit: Int
+            creatorLimit: Int,
+            lang: Lang
         ): List<HomeGenreCreatorRecommendationGroup> {
             genreCreatorMemberId = memberId
             genreCreatorIncludeAdultGenres = includeAdultGenres

src/test/kotlin/kr/co/vividnext/sodalive/v2/usercreatorchat/UserCreatorChatNameJoinRepositoryTest.kt

@@ -0,0 +1,167 @@
+package kr.co.vividnext.sodalive.v2.usercreatorchat
+
+import kr.co.vividnext.sodalive.chat.character.ChatCharacter
+import kr.co.vividnext.sodalive.chat.room.ChatMessage
+import kr.co.vividnext.sodalive.chat.room.ChatParticipant
+import kr.co.vividnext.sodalive.chat.room.ChatRoom
+import kr.co.vividnext.sodalive.chat.room.ParticipantType
+import kr.co.vividnext.sodalive.chat.room.repository.ChatRoomRepository
+import kr.co.vividnext.sodalive.configs.QueryDslConfig
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberRole
+import kr.co.vividnext.sodalive.member.following.CreatorFollowing
+import kr.co.vividnext.sodalive.v2.chat.service.ChatRoomListService
+import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatMessageRepository
+import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatParticipantRepository
+import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatRoomRepository
+import org.hibernate.SessionFactory
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.EnumSource
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
+import org.springframework.context.annotation.Import
+import org.springframework.data.domain.PageRequest
+import org.springframework.jdbc.core.JdbcTemplate
+import java.time.LocalDateTime
+import javax.persistence.EntityManager
+
+@DataJpaTest(properties = ["spring.cache.type=none", "spring.jpa.properties.hibernate.generate_statistics=true"])
+@Import(QueryDslConfig::class)
+class UserCreatorChatNameJoinRepositoryTest @Autowired constructor(
+    private val roomRepository: UserCreatorChatRoomRepository,
+    private val messageRepository: UserCreatorChatMessageRepository,
+    private val participantRepository: UserCreatorChatParticipantRepository,
+    private val aiRoomRepository: ChatRoomRepository,
+    private val entityManager: EntityManager,
+    private val jdbcTemplate: JdbcTemplate
+) {
+    @ParameterizedTest
+    @EnumSource(Lang::class)
+    @DisplayName("DM 목록·히스토리·상대 프로필은 요청 Lang을 조인하고 USER·미등록·비활성 행을 유지한다")
+    fun shouldJoinRequestedNamesWithoutStandaloneNameQueries(lang: Lang) {
+        val viewer = member("viewer", MemberRole.USER)
+        val opponents = listOf(
+            member("creator", MemberRole.CREATOR),
+            member("inactive", MemberRole.CREATOR, false),
+            member("missing", MemberRole.CREATOR, null),
+            member("user", MemberRole.USER)
+        )
+        val rooms = opponents.map { dmRoom(viewer, it) }
+        entityManager.flush()
+        entityManager.clear()
+        val statistics = entityManager.entityManagerFactory.unwrap(SessionFactory::class.java).statistics
+        statistics.clear()
+
+        val listed = roomRepository.findDmChatListRooms(
+            viewer.id!!,
+            null,
+            null,
+            null,
+            false,
+            lang,
+            PageRequest.of(0, 20)
+        )
+
+        val expectedCreator = if (lang == Lang.KO) "creator" else "${lang.name}-creator"
+        assertEquals(setOf(expectedCreator, "inactive", "missing", "user"), listed.map { it.targetName }.toSet())
+        assertEquals(4, listed.size)
+        assertEquals(1L, statistics.queryExecutionCount)
+        assertEquals(0L, statistics.entityLoadCount)
+        rooms.zip(opponents).forEach { (room, opponent) ->
+            statistics.clear()
+            val expectedName = if (opponent.id == opponents.first().id) expectedCreator else opponent.nickname
+            val messages = messageRepository.findMessageHistory(room, null, lang, PageRequest.of(0, 20))
+            assertEquals(listOf(expectedName, "viewer"), messages.map { it.senderNickname })
+            assertEquals(listOf("opponent body", "viewer body"), messages.map { it.textMessage })
+            assertEquals(1L, statistics.queryExecutionCount)
+            assertEquals(0L, statistics.entityLoadCount)
+
+            statistics.clear()
+            val previous = messageRepository.findMessageHistory(room, messages.first().messageId, lang, PageRequest.of(0, 20))
+            assertEquals(listOf(messages.last().messageId), previous.map { it.messageId })
+            assertEquals(1L, statistics.queryExecutionCount)
+
+            statistics.clear()
+            val profile = participantRepository.findActiveOpponentProfile(room.id!!, viewer.id!!, lang)
+            assertEquals(expectedName, profile!!.nickname)
+            assertEquals(1L, statistics.queryExecutionCount)
+            assertEquals(0L, statistics.entityLoadCount)
+        }
+    }
+
+    @Test
+    @DisplayName("통합 채팅 목록은 DM만 EN 별칭을 조인하고 AI 캐릭터 이름·팔로우 필터·커서를 유지한다")
+    fun shouldKeepAiCharacterNameAndFollowingCursorWhenJoiningDmNames() {
+        val viewer = member("viewer", MemberRole.USER)
+        val creator = member("creator", MemberRole.CREATOR)
+        val room = dmRoom(viewer, creator)
+        val character = ChatCharacter("join-character", "AI character", "description", systemPrompt = "prompt").apply {
+            creatorMember = creator
+        }
+        entityManager.persist(character)
+        val aiRoom = ChatRoom("join-ai-session", "AI room")
+        entityManager.persist(aiRoom)
+        entityManager.persist(ChatParticipant(aiRoom, ParticipantType.USER, member = viewer))
+        val characterParticipant = ChatParticipant(aiRoom, ParticipantType.CHARACTER, character = character)
+        entityManager.persist(characterParticipant)
+        entityManager.persist(ChatMessage("AI body", aiRoom, characterParticipant))
+        entityManager.persist(
+            CreatorFollowing().apply {
+                member = viewer
+                this.creator = creator
+            }
+        )
+        entityManager.flush()
+        entityManager.clear()
+        val statistics = entityManager.entityManagerFactory.unwrap(SessionFactory::class.java).statistics
+        statistics.clear()
+        val service = ChatRoomListService(aiRoomRepository, roomRepository, "https://cdn.test")
+
+        val first = service.getRooms(viewer, Lang.EN, limit = 1, followedCreatorsOnly = true)
+        val second = service.getRooms(viewer, Lang.EN, cursor = first.nextCursor, limit = 1, followedCreatorsOnly = true)
+
+        assertEquals(true, first.hasMore)
+        assertEquals(false, second.hasMore)
+        assertEquals(listOf("AI character", "EN-creator"), (first.rooms + second.rooms).map { it.targetName })
+        assertEquals(listOf(aiRoom.id, room.id), (first.rooms + second.rooms).map { it.roomId })
+        assertEquals(4L, statistics.queryExecutionCount, statistics.queries.joinToString("\n"))
+        assertEquals(0L, statistics.entityLoadCount)
+    }
+
+    private fun member(nickname: String, role: MemberRole, activeAlias: Boolean? = true): Member {
+        val member = Member(password = "pw", nickname = nickname, role = role)
+        entityManager.persist(member)
+        if (activeAlias != null) {
+            listOf(Lang.JA, Lang.EN).forEach { lang ->
+                jdbcTemplate.update(
+                    "INSERT INTO creator_localized_name (member_id, lang, display_name, is_active, created_at, updated_at) " +
+                        "VALUES (?, ?, ?, ?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)",
+                    member.id!!,
+                    lang.name,
+                    "${lang.name}-$nickname",
+                    activeAlias
+                )
+            }
+        }
+        return member
+    }
+
+    private fun dmRoom(viewer: Member, opponent: Member): UserCreatorChatRoom {
+        val room = roomRepository.save(UserCreatorChatRoom())
+        val mine = participantRepository.save(UserCreatorChatParticipant(room, viewer))
+        val theirs = participantRepository.save(UserCreatorChatParticipant(room, opponent))
+        val now = LocalDateTime.now()
+        messageRepository.save(UserCreatorChatMessage(room, mine, UserCreatorChatMessageType.TEXT, "viewer body"))
+            .createdAt = now.minusMinutes(2)
+        messageRepository.save(UserCreatorChatMessage(room, theirs, UserCreatorChatMessageType.TEXT, "opponent body"))
+            .createdAt = now.minusMinutes(1)
+        messageRepository.save(
+            UserCreatorChatMessage(room, theirs, UserCreatorChatMessageType.TEXT, "inactive body", isActive = false)
+        )
+        return room
+    }
+}

src/test/kotlin/kr/co/vividnext/sodalive/v2/usercreatorchat/UserCreatorChatServiceIntegrationTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.usercreatorchat
 
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberKind
 import kr.co.vividnext.sodalive.member.MemberRepository
@@ -112,7 +113,7 @@ class UserCreatorChatServiceIntegrationTest @Autowired constructor(
         entityManager.clear()
 
         val exception = assertThrows(SodaException::class.java) {
-            service.sendTextMessageByWebSocket(user.id!!, room.id!!, "hello")
+            service.sendTextMessageByWebSocket(user.id!!, room.id!!, "hello", Lang.KO)
         }
 
         assertEquals("message.error.recipient_not_found", exception.messageKey)

src/test/kotlin/kr/co/vividnext/sodalive/v2/usercreatorchat/UserCreatorChatServiceTest.kt

@@ -6,11 +6,16 @@ import kr.co.vividnext.sodalive.aws.s3.S3Uploader
 import kr.co.vividnext.sodalive.fcm.FcmDeepLinkValue
 import kr.co.vividnext.sodalive.fcm.FcmEvent
 import kr.co.vividnext.sodalive.fcm.FcmEventType
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRepository
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
+import kr.co.vividnext.sodalive.v2.creatorname.application.CreatorLocalizedNameService
 import kr.co.vividnext.sodalive.v2.usercreatorchat.dto.UserCreatorChatMessageItemDto
+import kr.co.vividnext.sodalive.v2.usercreatorchat.dto.UserCreatorChatMessageRow
+import kr.co.vividnext.sodalive.v2.usercreatorchat.dto.UserCreatorChatOpponentProfile
 import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatMessageRepository
 import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatParticipantRepository
 import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatRoomRepository
@@ -70,6 +75,8 @@ class UserCreatorChatServiceTest {
             applicationEventPublisher = eventPublisher,
             objectMapper = ObjectMapper(),
             s3Uploader = s3Uploader,
+            localizedNameService = Mockito.mock(CreatorLocalizedNameService::class.java),
+            langContext = LangContext(),
             bucket = "test-bucket",
             cloudFrontHost = "https://cdn.test"
         )
@@ -140,13 +147,15 @@ class UserCreatorChatServiceTest {
         }
         val room = room(10L)
         val userParticipant = participant(100L, room, user)
-        val creatorParticipant = participant(101L, room, creator)
         Mockito.`when`(roomRepository.findByIdAndIsActiveTrue(10L)).thenReturn(room)
         Mockito.`when`(participantRepository.findActiveByRoomIdAndMemberId(10L, 1L)).thenReturn(userParticipant)
-        Mockito.`when`(participantRepository.findActiveOpponent(10L, 1L)).thenReturn(creatorParticipant)
+        Mockito.`when`(participantRepository.findActiveOpponentProfile(10L, 1L, Lang.KO))
+            .thenReturn(UserCreatorChatOpponentProfile(creator.nickname, creator.profileImage))
         Mockito.`when`(
-            messageRepository.findByChatRoomAndIsActiveTrueOrderByIdDesc(
+            messageRepository.findMessageHistory(
                 room,
+                null,
+                Lang.KO,
                 PageRequest.of(0, 20)
             )
         ).thenReturn(emptyList())
@@ -159,7 +168,7 @@ class UserCreatorChatServiceTest {
         assertEquals(emptyList<UserCreatorChatMessageItemDto>(), response.messages)
         assertFalse(response.hasMore)
         assertEquals(null, response.nextCursor)
-        Mockito.verify(participantRepository).findActiveOpponent(10L, 1L)
+        Mockito.verify(participantRepository).findActiveOpponentProfile(10L, 1L, Lang.KO)
     }
 
     @Test
@@ -169,13 +178,15 @@ class UserCreatorChatServiceTest {
         val creator = member(2L, "creator")
         val room = room(10L)
         val userParticipant = participant(100L, room, user)
-        val creatorParticipant = participant(101L, room, creator)
         Mockito.`when`(roomRepository.findByIdAndIsActiveTrue(10L)).thenReturn(room)
         Mockito.`when`(participantRepository.findActiveByRoomIdAndMemberId(10L, 1L)).thenReturn(userParticipant)
-        Mockito.`when`(participantRepository.findActiveOpponent(10L, 1L)).thenReturn(creatorParticipant)
+        Mockito.`when`(participantRepository.findActiveOpponentProfile(10L, 1L, Lang.KO))
+            .thenReturn(UserCreatorChatOpponentProfile(creator.nickname, creator.profileImage))
         Mockito.`when`(
-            messageRepository.findByChatRoomAndIsActiveTrueOrderByIdDesc(
+            messageRepository.findMessageHistory(
                 room,
+                null,
+                Lang.KO,
                 PageRequest.of(0, 20)
             )
         ).thenReturn(emptyList())
@@ -202,7 +213,7 @@ class UserCreatorChatServiceTest {
             (invocation.arguments[0] as UserCreatorChatMessage).apply { id = 203L }
         }
 
-        val response = service.sendTextMessageByWebSocket(memberId = 1L, roomId = 10L, textMessage = "hello")
+        val response = service.sendTextMessageByWebSocket(memberId = 1L, roomId = 10L, textMessage = "hello", lang = Lang.KO)
 
         assertEquals(203L, response.messageId)
         assertEquals("hello", response.textMessage)
@@ -230,7 +241,7 @@ class UserCreatorChatServiceTest {
             (invocation.arguments[0] as UserCreatorChatMessage).apply { id = 204L }
         }
 
-        service.sendTextMessageByWebSocket(memberId = 1L, roomId = 10L, textMessage = "hello")
+        service.sendTextMessageByWebSocket(memberId = 1L, roomId = 10L, textMessage = "hello", lang = Lang.KO)
 
         val eventCaptor = ArgumentCaptor.forClass(FcmEvent::class.java)
         Mockito.verify(eventPublisher).publishEvent(eventCaptor.capture())
@@ -263,7 +274,7 @@ class UserCreatorChatServiceTest {
             (invocation.arguments[0] as UserCreatorChatMessage).apply { id = 207L }
         }
 
-        val response = service.sendTextMessageByWebSocket(memberId = 1L, roomId = 10L, textMessage = "hello")
+        val response = service.sendTextMessageByWebSocket(memberId = 1L, roomId = 10L, textMessage = "hello", lang = Lang.KO)
 
         assertEquals(207L, response.messageId)
         val eventCaptor = ArgumentCaptor.forClass(FcmEvent::class.java)
@@ -421,12 +432,13 @@ class UserCreatorChatServiceTest {
         Mockito.`when`(roomRepository.findByIdAndIsActiveTrue(10L)).thenReturn(room)
         Mockito.`when`(participantRepository.findActiveByRoomIdAndMemberId(10L, 1L)).thenReturn(userParticipant)
         Mockito.`when`(
-            messageRepository.findByChatRoomAndIdLessThanAndIsActiveTrueOrderByIdDesc(
+            messageRepository.findMessageHistory(
                 room,
                 300L,
+                Lang.KO,
                 PageRequest.of(0, 20)
             )
-        ).thenReturn(listOf(newerMessage, olderMessage))
+        ).thenReturn(listOf(messageRow(newerMessage), messageRow(olderMessage)))
         Mockito.`when`(messageRepository.existsByChatRoomAndIsActiveTrueAndIdLessThan(room, 298L)).thenReturn(true)
 
         val response = service.getMessages(user, roomId = 10L, cursor = 300L)
@@ -435,15 +447,30 @@ class UserCreatorChatServiceTest {
         assertEquals(listOf("older", "newer"), response.messages.map { it.textMessage })
         assertTrue(response.hasMore)
         assertEquals(298L, response.nextCursor)
-        Mockito.verify(messageRepository).findByChatRoomAndIdLessThanAndIsActiveTrueOrderByIdDesc(
+        Mockito.verify(messageRepository).findMessageHistory(
             room,
             300L,
+            Lang.KO,
             PageRequest.of(0, 20)
         )
     }
 
     private fun member(id: Long, nickname: String) = Member(password = "pw", nickname = nickname).apply { this.id = id }
 
+    private fun messageRow(message: UserCreatorChatMessage): UserCreatorChatMessageRow {
+        val sender = message.participant.member
+        return UserCreatorChatMessageRow(
+            message.id!!,
+            message.messageType,
+            message.createdAt,
+            message.textMessage,
+            message.voiceMessage,
+            sender.id!!,
+            sender.nickname,
+            sender.profileImage
+        )
+    }
+
     private fun anyMessageItem(): UserCreatorChatMessageItemDto {
         return Mockito.any(UserCreatorChatMessageItemDto::class.java) ?: UserCreatorChatMessageItemDto(
             messageId = 0L,

src/test/kotlin/kr/co/vividnext/sodalive/v2/usercreatorchat/websocket/UserCreatorChatLocalizedNameIntegrationTest.kt

@@ -0,0 +1,367 @@
+package kr.co.vividnext.sodalive.v2.usercreatorchat.websocket
+
+import com.amazonaws.services.s3.model.ObjectMetadata
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.databind.ObjectMapper
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.fcm.FcmService
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.jwt.TokenProvider
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberAdapter
+import kr.co.vividnext.sodalive.member.MemberRepository
+import kr.co.vividnext.sodalive.member.MemberRole
+import kr.co.vividnext.sodalive.member.token.MemberTokenRepository
+import kr.co.vividnext.sodalive.support.EmbeddedRedisInitializer
+import kr.co.vividnext.sodalive.v2.usercreatorchat.UserCreatorChatMessage
+import kr.co.vividnext.sodalive.v2.usercreatorchat.UserCreatorChatMessageType
+import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatMessageRepository
+import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatParticipantRepository
+import kr.co.vividnext.sodalive.v2.usercreatorchat.repository.UserCreatorChatRoomRepository
+import kr.co.vividnext.sodalive.v2.usercreatorchat.service.UserCreatorChatService
+import org.junit.jupiter.api.AfterEach
+import org.junit.jupiter.api.Assertions.assertAll
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.CsvSource
+import org.mockito.Mockito
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.boot.test.mock.mockito.MockBean
+import org.springframework.boot.test.web.client.TestRestTemplate
+import org.springframework.boot.test.web.server.LocalServerPort
+import org.springframework.http.HttpEntity
+import org.springframework.http.HttpHeaders
+import org.springframework.http.HttpMethod
+import org.springframework.http.HttpStatus
+import org.springframework.http.server.ServletServerHttpRequest
+import org.springframework.http.server.ServletServerHttpResponse
+import org.springframework.jdbc.core.JdbcTemplate
+import org.springframework.mock.web.MockHttpServletRequest
+import org.springframework.mock.web.MockHttpServletResponse
+import org.springframework.mock.web.MockMultipartFile
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken
+import org.springframework.test.annotation.DirtiesContext
+import org.springframework.test.context.ContextConfiguration
+import org.springframework.transaction.support.TransactionTemplate
+import org.springframework.web.context.request.RequestContextHolder
+import org.springframework.web.context.request.ServletRequestAttributes
+import org.springframework.web.socket.TextMessage
+import org.springframework.web.socket.WebSocketHttpHeaders
+import org.springframework.web.socket.WebSocketSession
+import org.springframework.web.socket.client.standard.StandardWebSocketClient
+import org.springframework.web.socket.handler.TextWebSocketHandler
+import java.io.ByteArrayInputStream
+import java.io.InputStream
+import java.net.URI
+import java.util.UUID
+import java.util.concurrent.LinkedBlockingQueue
+import java.util.concurrent.TimeUnit
+
+@SpringBootTest(
+    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+    properties = [
+        "spring.cache.type=none",
+        "jwt.secret=MDEyMzQ1Njc4OWFiY2RlZjAxMjM0NTY3ODlhYmNkZWYwMTIzNDU2Nzg5YWJjZGVmMDEyMzQ1Njc4OWFiY2RlZg=="
+    ]
+)
+@ContextConfiguration(initializers = [EmbeddedRedisInitializer::class])
+@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_CLASS)
+class UserCreatorChatLocalizedNameIntegrationTest @Autowired constructor(
+    private val tokenProvider: TokenProvider,
+    private val tokenRepository: MemberTokenRepository,
+    private val authInterceptor: UserCreatorChatWebSocketAuthInterceptor,
+    private val handler: UserCreatorChatWebSocketHandler,
+    private val service: UserCreatorChatService,
+    private val memberRepository: MemberRepository,
+    private val roomRepository: UserCreatorChatRoomRepository,
+    private val participantRepository: UserCreatorChatParticipantRepository,
+    private val messageRepository: UserCreatorChatMessageRepository,
+    private val objectMapper: ObjectMapper,
+    private val jdbcTemplate: JdbcTemplate,
+    private val transactionTemplate: TransactionTemplate,
+    private val restTemplate: TestRestTemplate,
+    private val langContext: LangContext
+) {
+    @LocalServerPort
+    private var port: Int = 0
+
+    @MockBean
+    private lateinit var fcmService: FcmService
+
+    @MockBean
+    private lateinit var s3Uploader: S3Uploader
+
+    private lateinit var creator: Member
+    private lateinit var recipient: Member
+    private lateinit var creatorToken: String
+    private lateinit var recipientToken: String
+    private var roomId: Long = 0
+    private val connections = mutableListOf<ClientConnection>()
+
+    @BeforeEach
+    fun createCommittedFixture() {
+        transactionTemplate.executeWithoutResult {
+            val suffix = UUID.randomUUID().toString()
+            creator = memberRepository.saveAndFlush(
+                Member(
+                    email = "creator-$suffix@localized-ws.test",
+                    password = "pw",
+                    nickname = "original-creator",
+                    role = MemberRole.CREATOR
+                )
+            )
+            recipient = memberRepository.saveAndFlush(
+                Member(email = "recipient-$suffix@localized-ws.test", password = "pw", nickname = "original-user")
+            )
+            jdbcTemplate.update(
+                "INSERT INTO creator_localized_name (member_id, lang, display_name, is_active, created_at, updated_at) " +
+                    "VALUES (?, 'JA', '日本のクリエイター', true, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)",
+                creator.id!!
+            )
+            roomId = service.createOrGetRoom(creator, recipient.id!!).roomId
+        }
+        creatorToken = token(creator)
+        recipientToken = token(recipient)
+    }
+
+    @AfterEach
+    fun closeConnectionsAndRemoveTokens() {
+        connections.forEach { it.session.close() }
+        tokenRepository.deleteById(creator.id!!)
+        tokenRepository.deleteById(recipient.id!!)
+    }
+
+    @ParameterizedTest
+    @CsvSource("ja-JP, JA", "ko-KR, KO", "en-US, EN", "fr-FR, KO")
+    @DisplayName("실제 JWT handshake는 Accept-Language를 Lang 세션 속성으로 저장한다")
+    fun shouldStoreExplicitLanguageOnAuthenticatedHandshake(header: String, expected: Lang) {
+        val request = MockHttpServletRequest().apply {
+            addHeader(HttpHeaders.AUTHORIZATION, "Bearer $recipientToken")
+            addHeader(HttpHeaders.ACCEPT_LANGUAGE, header)
+        }
+        val attributes = mutableMapOf<String, Any>()
+
+        val accepted = authInterceptor.beforeHandshake(
+            ServletServerHttpRequest(request),
+            ServletServerHttpResponse(MockHttpServletResponse()),
+            handler,
+            attributes
+        )
+
+        assertTrue(accepted)
+        assertEquals(recipient.id, attributes[UserCreatorChatWebSocketAuthInterceptor.MEMBER_ID_ATTRIBUTE])
+        assertEquals(expected, attributes["lang"])
+    }
+
+    @Test
+    @DisplayName("Accept-Language가 없는 실제 인증 handshake는 KO 세션으로 연결한다")
+    fun shouldDefaultHandshakeLanguageToKoreanWhenHeaderIsMissing() {
+        val request = MockHttpServletRequest().apply { addHeader(HttpHeaders.AUTHORIZATION, "Bearer $recipientToken") }
+        val attributes = mutableMapOf<String, Any>()
+
+        val accepted = authInterceptor.beforeHandshake(
+            ServletServerHttpRequest(request),
+            ServletServerHttpResponse(MockHttpServletResponse()),
+            handler,
+            attributes
+        )
+
+        assertTrue(accepted)
+        assertEquals(Lang.KO, attributes["lang"])
+    }
+
+    @Test
+    @DisplayName("localhost WS와 Redis를 거친 같은 회원의 KO JA 세션은 이름만 다르고 원본 본문과 ID를 공유한다")
+    fun shouldDeliverDifferentNamesToSimultaneousSessionsOfTheSameRecipient() {
+        val korean = connect(recipientToken, "ko-KR")
+        val japanese = connect(recipientToken, "ja-JP")
+        val sender = connect(creatorToken, "ja-JP")
+        join(korean)
+        join(japanese)
+        join(sender)
+        sendText(sender, "original-creator 본문", "send-multilang")
+
+        val koreanMessage = receive(korean, "MESSAGE")["payload"]
+        val japaneseMessage = receive(japanese, "MESSAGE")["payload"]
+        val ack = receive(sender, "SEND_ACK")
+
+        assertAll(
+            { assertEquals("original-creator", koreanMessage["senderNickname"].asText()) },
+            { assertEquals("日本のクリエイター", japaneseMessage["senderNickname"].asText()) },
+            { assertEquals("original-creator 본문", koreanMessage["textMessage"].asText()) },
+            { assertEquals("original-creator 본문", japaneseMessage["textMessage"].asText()) },
+            { assertEquals(koreanMessage["messageId"], japaneseMessage["messageId"]) },
+            { assertEquals(creator.id!!, japaneseMessage["senderId"].asLong()) },
+            { assertEquals(false, japaneseMessage["mine"].asBoolean()) },
+            { assertEquals("send-multilang", ack["requestId"].asText()) },
+            { assertEquals("original-creator", memberRepository.findById(creator.id!!).orElseThrow().nickname) }
+        )
+    }
+
+    @Test
+    @DisplayName("JA 발신자 SEND_ACK는 KO 수신자 전달과 독립적으로 현지화하고 mine과 requestId를 유지한다")
+    fun shouldRenderSenderAckInSenderSessionLanguageIndependentlyOfRecipient() {
+        val receiver = connect(recipientToken, "ko-KR")
+        val sender = connect(creatorToken, "ja-JP")
+        join(receiver)
+        join(sender)
+        sendText(sender, "ACK 본문", "sender-ja")
+
+        val received = receive(receiver, "MESSAGE")["payload"]
+        val ack = receive(sender, "SEND_ACK")
+
+        assertAll(
+            { assertEquals("日本のクリエイター", ack["payload"]["senderNickname"].asText()) },
+            { assertEquals("original-creator", received["senderNickname"].asText()) },
+            { assertEquals(true, ack["payload"]["mine"].asBoolean()) },
+            { assertEquals(false, received["mine"].asBoolean()) },
+            { assertEquals(received["messageId"], ack["payload"]["messageId"]) },
+            { assertEquals("sender-ja", ack["requestId"].asText()) }
+        )
+    }
+
+    @Test
+    @DisplayName("HTTP open과 메시지 페이지는 현재 요청 언어를 사용하고 이전 JA 응답을 후속 KO 조회가 바꾸지 않는다")
+    fun shouldRenderHttpRoomAndMessageNamesAtEachRequestBoundary() {
+        transactionTemplate.executeWithoutResult {
+            val room = roomRepository.findById(roomId).orElseThrow()
+            val participant = participantRepository.findActiveByRoomIdAndMemberId(roomId, creator.id!!)!!
+            messageRepository.saveAndFlush(
+                UserCreatorChatMessage(
+                    chatRoom = room,
+                    participant = participant,
+                    messageType = UserCreatorChatMessageType.TEXT,
+                    textMessage = "original-creator text"
+                )
+            )
+        }
+
+        val japanese = getRoomResource("open", "ja-JP")
+        val korean = getRoomResource("open", "ko-KR")
+        val messages = getRoomResource("messages", "ja-JP")
+
+        assertAll(
+            { assertEquals("日本のクリエイター", japanese["opponentNickname"].asText()) },
+            { assertEquals("日本のクリエイター", japanese["messages"][0]["senderNickname"].asText()) },
+            { assertEquals("original-creator", korean["opponentNickname"].asText()) },
+            { assertEquals("original-creator", korean["messages"][0]["senderNickname"].asText()) },
+            { assertEquals("日本のクリエイター", messages["messages"][0]["senderNickname"].asText()) },
+            { assertEquals("original-creator text", japanese["messages"][0]["textMessage"].asText()) }
+        )
+    }
+
+    @Test
+    @DisplayName("음성 REST 응답의 JA 이름과 KO WebSocket 전달은 같은 저장 메시지를 독립 렌더링한다")
+    fun shouldLocalizeVoiceHttpResponseWithoutLocalizingNeutralPublishedPayload() {
+        val receiver = connect(recipientToken, "ko-KR")
+        join(receiver)
+        Mockito.`when`(
+            s3Uploader.upload(
+                Mockito.any(InputStream::class.java) ?: ByteArrayInputStream(byteArrayOf()),
+                Mockito.anyString(),
+                Mockito.anyString(),
+                Mockito.any(ObjectMetadata::class.java)
+            )
+        ).thenReturn("voice/localized.aac")
+        RequestContextHolder.setRequestAttributes(ServletRequestAttributes(MockHttpServletRequest()))
+        try {
+            langContext.setLang(Lang.JA)
+            val response = service.sendVoiceMessage(
+                creator,
+                roomId,
+                MockMultipartFile("voiceMessageFile", "voice.aac", "audio/aac", byteArrayOf(1, 2)),
+                "{}"
+            )
+            val delivered = receive(receiver, "MESSAGE")["payload"]
+
+            assertEquals("日本のクリエイター", response.message.senderNickname)
+            assertEquals("original-creator", delivered["senderNickname"].asText())
+            assertEquals(response.message.messageId, delivered["messageId"].asLong())
+            assertEquals(response.message.voiceMessageUrl, delivered["voiceMessageUrl"].asText())
+            assertTrue(response.deliveredRealtime)
+            assertEquals(false, response.pushSent)
+        } finally {
+            RequestContextHolder.resetRequestAttributes()
+        }
+    }
+
+    private fun token(member: Member): String {
+        val principal = MemberAdapter(member)
+        return tokenProvider.createToken(
+            UsernamePasswordAuthenticationToken(principal, "pw", principal.authorities),
+            member.id!!
+        )
+    }
+
+    private fun connect(token: String, language: String): ClientConnection {
+        val messages = LinkedBlockingQueue<JsonNode>()
+        val clientHandler = object : TextWebSocketHandler() {
+            override fun handleTextMessage(session: WebSocketSession, message: TextMessage) {
+                messages.add(objectMapper.readTree(message.payload))
+            }
+        }
+        val headers = WebSocketHttpHeaders().apply {
+            setBearerAuth(token)
+            set(HttpHeaders.ACCEPT_LANGUAGE, language)
+        }
+        val session = StandardWebSocketClient().doHandshake(
+            clientHandler,
+            headers,
+            URI("ws://localhost:$port${UserCreatorChatWebSocketConfig.ENDPOINT}")
+        ).get(5, TimeUnit.SECONDS)
+        return ClientConnection(session, messages).also { connections.add(it) }
+    }
+
+    private fun join(connection: ClientConnection) {
+        connection.session.sendMessage(TextMessage("""{"type":"JOIN_ROOM","roomId":$roomId,"payload":{}}"""))
+        receive(connection, "JOINED")
+    }
+
+    private fun sendText(connection: ClientConnection, text: String, requestId: String) {
+        connection.session.sendMessage(
+            TextMessage(
+                objectMapper.writeValueAsString(
+                    mapOf(
+                        "type" to "SEND_TEXT",
+                        "requestId" to requestId,
+                        "roomId" to roomId,
+                        "payload" to mapOf("textMessage" to text)
+                    )
+                )
+            )
+        )
+    }
+
+    private fun receive(connection: ClientConnection, expectedType: String): JsonNode {
+        val envelope = connection.messages.poll(5, TimeUnit.SECONDS)
+        assertNotNull(envelope, "Expected $expectedType from localhost WebSocket")
+        assertEquals(expectedType, envelope!!["type"].asText(), envelope.toString())
+        return envelope
+    }
+
+    private fun getRoomResource(resource: String, language: String): JsonNode {
+        val headers = HttpHeaders().apply {
+            setBearerAuth(recipientToken)
+            set(HttpHeaders.ACCEPT_LANGUAGE, language)
+        }
+        val response = restTemplate.exchange(
+            "http://localhost:$port/api/v2/user-creator-chat/rooms/$roomId/$resource",
+            HttpMethod.GET,
+            HttpEntity<Void>(headers),
+            String::class.java
+        )
+        assertEquals(HttpStatus.OK, response.statusCode, response.body)
+        val body = objectMapper.readTree(response.body)
+        assertTrue(body["success"].asBoolean(), response.body)
+        return body["data"]
+    }
+
+    private data class ClientConnection(val session: WebSocketSession, val messages: LinkedBlockingQueue<JsonNode>)
+}

src/test/kotlin/kr/co/vividnext/sodalive/v2/usercreatorchat/websocket/UserCreatorChatRedisIntegrationTest.kt

@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.v2.usercreatorchat.websocket
 import com.fasterxml.jackson.databind.ObjectMapper
 import kr.co.vividnext.sodalive.support.EmbeddedRedisInitializer
 import kr.co.vividnext.sodalive.support.EmbeddedRedisTestConfiguration
+import kr.co.vividnext.sodalive.v2.creatorname.application.CreatorLocalizedNameService
 import org.junit.jupiter.api.AfterEach
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Assertions.assertFalse
@@ -14,6 +15,7 @@ import org.mockito.ArgumentCaptor
 import org.mockito.Mockito
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.boot.test.mock.mockito.MockBean
 import org.springframework.data.redis.core.StringRedisTemplate
 import org.springframework.test.context.ContextConfiguration
 import org.springframework.test.context.TestPropertySource
@@ -35,6 +37,9 @@ import java.util.concurrent.TimeUnit
 @ContextConfiguration(initializers = [EmbeddedRedisInitializer::class])
 @TestPropertySource(properties = ["user-creator-chat.websocket.server-id=redis-test-server"])
 class UserCreatorChatRedisIntegrationTest {
+    @MockBean
+    private lateinit var localizedNameService: CreatorLocalizedNameService
+
     @Autowired
     private lateinit var stringRedisTemplate: StringRedisTemplate
 

src/test/kotlin/kr/co/vividnext/sodalive/v2/usercreatorchat/websocket/UserCreatorChatRoomMessageBrokerTest.kt

@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.v2.usercreatorchat.websocket
 
 import com.fasterxml.jackson.databind.ObjectMapper
+import kr.co.vividnext.sodalive.v2.creatorname.application.CreatorLocalizedNameService
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
@@ -25,7 +26,8 @@ class UserCreatorChatRoomMessageBrokerTest {
         stringRedisTemplate = stringRedisTemplate,
         sessionRegistry = registry,
         objectMapper = objectMapper,
-        listenerContainer = listenerContainer
+        listenerContainer = listenerContainer,
+        localizedNameService = Mockito.mock(CreatorLocalizedNameService::class.java)
     )
 
     @Test

src/test/kotlin/kr/co/vividnext/sodalive/v2/usercreatorchat/websocket/UserCreatorChatWebSocketHandlerTest.kt

@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.v2.usercreatorchat.websocket
 import com.fasterxml.jackson.databind.JsonNode
 import com.fasterxml.jackson.databind.ObjectMapper
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.v2.usercreatorchat.dto.UserCreatorChatMessageItemDto
 import kr.co.vividnext.sodalive.v2.usercreatorchat.service.UserCreatorChatService
 import org.junit.jupiter.api.Assertions.assertEquals
@@ -66,7 +67,7 @@ class UserCreatorChatWebSocketHandlerTest {
     @DisplayName("SEND_TEXT는 메시지 저장 후 sender에게 SEND_ACK를 응답한다")
     fun shouldSendAckToSenderWhenTextMessageIsSaved() {
         val session = session("session-1", memberId = 1L)
-        Mockito.`when`(service.sendTextMessageByWebSocket(memberId = 1L, roomId = 10L, textMessage = "hello"))
+        Mockito.`when`(service.sendTextMessageByWebSocket(1L, 10L, "hello", Lang.KO))
             .thenReturn(messageItem())
         handler.handleMessage(session, textMessage("JOIN_ROOM", "join-1", 10L, "{}"))
         Mockito.clearInvocations(session)
@@ -103,7 +104,8 @@ class UserCreatorChatWebSocketHandlerTest {
         Mockito.verify(service, Mockito.never()).sendTextMessageByWebSocket(
             Mockito.anyLong(),
             Mockito.anyLong(),
-            Mockito.anyString()
+            Mockito.anyString(),
+            Mockito.eq(Lang.KO) ?: Lang.KO
         )
     }