Merge pull request #132 from DevKor-github/develop

#131까지 반영해 배포

Author: coldsunn

src/main/java/com/devkor/ifive/nadab/domain/notification/infra/FcmClient.java

@@ -48,6 +48,7 @@ public List<String> sendMulticast(List<String> fcmTokens, NotificationMessageDto
             AndroidConfig androidConfig = AndroidConfig.builder()
                 .setPriority(AndroidConfig.Priority.HIGH)
                 .setNotification(AndroidNotification.builder()
+                    .setChannelId("default_push")
                     .setSound("default")  // 시스템 기본 사운드
                     .setDefaultSound(true)
                     .setPriority(AndroidNotification.Priority.HIGH)