feat(recommend): 콘텐츠 조회 이력 서비스를 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/recommend/application/CreatorContentViewHistoryService.kt

@@ -0,0 +1,28 @@
+package kr.co.vividnext.sodalive.v2.recommend.application
+
+import kr.co.vividnext.sodalive.v2.recommend.port.out.CreatorContentViewHistoryPort
+import kr.co.vividnext.sodalive.v2.recommend.port.out.CreatorContentViewHistoryRecord
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Propagation
+import org.springframework.transaction.annotation.Transactional
+import java.time.LocalDateTime
+
+@Service
+class CreatorContentViewHistoryService(
+    private val port: CreatorContentViewHistoryPort
+) {
+    @Transactional(propagation = Propagation.REQUIRES_NEW)
+    fun recordView(memberId: Long?, contentId: Long, viewedAt: LocalDateTime = LocalDateTime.now()) {
+        if (memberId == null) return
+
+        val genreId = port.findGenreIdByContentId(contentId) ?: return
+        port.save(
+            CreatorContentViewHistoryRecord(
+                memberId = memberId,
+                contentId = contentId,
+                genreId = genreId,
+                viewedAt = viewedAt
+            )
+        )
+    }
+}