feat(recommendation): 첫 오디오 콘텐츠 플래그를 확장한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/recommendation/adapter/out/persistence/DefaultHomeRecommendationQueryRepository.kt

@@ -390,6 +390,14 @@ class DefaultHomeRecommendationQueryRepository(
                        ac.release_date as release_date,
                        ac.is_active as is_active,
                        ac.is_point_available as is_point_available,
+                       ac.is_adult as is_adult,
+                       exists (
+                           select 1
+                           from series_content csc
+                           join series cs on cs.id = csc.series_id
+                           where csc.content_id = ac.id
+                             and cs.is_original = true
+                       ) as is_original_series,
                        row_number() over (
                            partition by ac.member_id
                            order by ac.created_at asc, ac.release_date asc, ac.id asc
@@ -416,7 +424,9 @@ class DefaultHomeRecommendationQueryRepository(
                    ec.title as title,
                    ec.price as price,
                    ec.cover_image as cover_image,
-                   ec.is_point_available as is_point_available
+                   ec.is_point_available as is_point_available,
+                   ec.is_adult as is_adult,
+                   ec.is_original_series as is_original_series
             from eligible_contents ec
             join member m on m.id = ec.creator_id
             join creator_debut cd on cd.creator_id = ec.creator_id
@@ -465,7 +475,9 @@ class DefaultHomeRecommendationQueryRepository(
                 title = row[4] as String,
                 price = (row[5] as Number).toInt(),
                 coverImage = row[6] as String?,
-                isPointAvailable = row[7] as Boolean
+                isPointAvailable = row[7] as Boolean,
+                isAdult = row[8] as Boolean,
+                isOriginalSeries = row[9] as Boolean
             )
         }
     }

src/main/kotlin/kr/co/vividnext/sodalive/v2/recommendation/port/out/HomeRecommendationQueryPort.kt

@@ -119,7 +119,9 @@ data class HomeFirstAudioContentRecord(
     val title: String,
     val price: Int,
     val coverImage: String?,
-    val isPointAvailable: Boolean
+    val isPointAvailable: Boolean,
+    val isAdult: Boolean,
+    val isOriginalSeries: Boolean
 )
 
 data class HomeAiCharacterRecommendationRecord(

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

@@ -65,7 +65,9 @@ class ContentOverviewPageResponseTest {
                 title = "first audio",
                 price = 100,
                 coverImage = "cover/audio.png",
-                isPointAvailable = true
+                isPointAvailable = true,
+                isAdult = true,
+                isOriginalSeries = true
             ),
             coverImage = "https://cdn.test/cover/audio.png",
             isAdult = true,

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

@@ -1164,6 +1164,25 @@ class DefaultHomeRecommendationQueryRepositoryTest @Autowired constructor(
         assertEquals(listOf(oldest.id), page1.map { it.contentId })
     }
 
+    @Test
+    @DisplayName("첫 오디오 콘텐츠는 성인 여부와 오리지널 시리즈 여부를 함께 조회한다")
+    fun shouldMapFirstAudioContentAdultAndOriginalSeriesFlags() {
+        val now = LocalDateTime.of(2026, 5, 31, 10, 0)
+        val creator = saveMember("first-audio-flags", MemberRole.CREATOR)
+        val content = saveAudioContent(creator, now.minusDays(1), isActive = true, isAdult = false)
+        val series = saveSeries("first-audio-original-series", creator, isActive = true).apply {
+            isOriginal = true
+        }
+        saveSeriesContent(series, content)
+        updateCreatedAt("AudioContent", content.id!!, now.minusDays(1))
+        flushAndClear()
+
+        val contents = repository.findFirstAudioContents(now, limit = 10)
+
+        assertEquals(false, contents.single().isAdult)
+        assertEquals(true, contents.single().isOriginalSeries)
+    }
+
     @Test
     @DisplayName("첫 오디오 콘텐츠는 회원과 크리에이터의 양방향 차단 관계를 제외한다")
     fun shouldExcludeBidirectionalBlockedCreatorsFromFirstAudioContents() {

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

@@ -688,7 +688,9 @@ class HomeRecommendationQueryServiceTest {
                 title = "first-audio",
                 price = 10,
                 coverImage = "first-audio.png",
-                isPointAvailable = true
+                isPointAvailable = true,
+                isAdult = false,
+                isOriginalSeries = false
             )
         )
         var aiCharacterDetails: List<HomeAiCharacterRecommendationRecord> = emptyList()