fix: 초대장 발송 후 lastPushedAt 업데이트

Author: JunRain2

tuk-api/src/main/kotlin/nexters/tuk/application/gathering/GatheringProposalService.kt

@@ -15,6 +15,7 @@ class GatheringProposalService(
     private val gatheringMemberService: GatheringMemberService,
     private val proposalMemberService: ProposalMemberService,
     private val pushService: PushService,
+    private val gatheringService: GatheringService
 ) {
     @Transactional
     fun addProposal(command: GatheringProposalCommand.AddProposal) {
@@ -42,5 +43,6 @@ class GatheringProposalService(
                 proposerMemberId = command.memberId,
             )
         )
+        gatheringService.updatePushStatus(command.gatheringId)
     }
 }

tuk-api/src/main/kotlin/nexters/tuk/application/gathering/GatheringService.kt

@@ -68,4 +68,9 @@ class GatheringService(
 
         gathering.delete()
     }
+
+    @Transactional
+    fun updatePushStatus(gatheringId: Long) {
+        gatheringRepository.findByIdOrThrow(gatheringId).updatePushStatus()
+    }
 }