Refactor: 포인트관련 로직을 포인트 서비스계층으로 통합, 개별 트랜잭션 적용, 테스트 코드 개선

src/main/java/com/example/sinitto/callback/service/CallbackService.java

@@ -113,20 +113,25 @@ private void earnPointForSinitto(Long sinittoMemberId) {
     }
 
     @Scheduled(cron = "0 */10 * * * *")
-    @Transactional
     public void changeOldPendingCompleteToCompleteByPolicy() {
 
         LocalDateTime referenceDateTimeForComplete = LocalDateTime.now().minusDays(DAYS_FOR_AUTO_COMPLETE);
 
         List<Callback> callbacks = callbackRepository.findAllByStatusAndPendingCompleteTimeBefore(Callback.Status.PENDING_COMPLETE, referenceDateTimeForComplete);
 
         for (Callback callback : callbacks) {
-
-            earnPointForSinitto(callback.getAssignedMemberId());
-            callback.changeStatusToComplete();
+            completeCallbackIndividually(callback);
         }
     }
 
+    @Transactional
+    public void completeCallbackIndividually(Callback callback) {
+
+        earnPointForSinitto(callback.getAssignedMemberId());
+        callback.changeStatusToComplete();
+
+    }
+
     @Transactional
     public void cancelCallbackAssignmentBySinitto(Long memberId, Long callbackId) {