fix: 포인트 정책 수정 - @Transactional 추가

src/main/kotlin/kr/co/vividnext/sodalive/admin/point/PointPolicyService.kt

@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.admin.point
 import kr.co.vividnext.sodalive.common.SodaException
 import org.springframework.data.repository.findByIdOrNull
 import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
 import java.time.LocalDateTime
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
@@ -16,11 +17,13 @@ class PointPolicyService(private val repository: PointPolicyRepository) {
         return GetPointRewardPolicyListResponse(totalCount, items)
     }
 
+    @Transactional
     fun create(request: CreatePointRewardPolicyRequest) {
         val pointPolicy = request.toEntity()
         repository.save(pointPolicy)
     }
 
+    @Transactional
     fun update(id: Long, request: ModifyPointRewardPolicyRequest) {
         val pointPolicy = repository.findByIdOrNull(id)
             ?: throw SodaException("잘못된 접근입니다.")