refactor: 트랜잭션 수정

Author: minseo003

src/main/java/com/project/Teaming/domain/mentoring/controller/MentoringBoardController.java

@@ -36,7 +36,7 @@ public ResultDetailResponse<String> savePost(@PathVariable Long teamId,
     public ResultDetailResponse<BoardSpecResponse> updatePost(@PathVariable Long postId,
                                                               @RequestBody @Valid BoardRequest dto) {
         mentoringBoardService.updateMentoringPost(postId, dto);
-        MentoringBoard mentoringPost = mentoringBoardService.findMentoringPost(postId);
+        MentoringBoard mentoringPost = mentoringBoardService.findMentoringPostForUpdate(postId);
         return new ResultDetailResponse<>(ResultCode.UPDATE_MENTORING_POST, mentoringBoardService.toDto(mentoringPost));
     }
 

src/main/java/com/project/Teaming/domain/mentoring/controller/MentoringTeamController.java

@@ -34,7 +34,7 @@ public ResultDetailResponse<TeamAuthorityResponse> updateMentoringTeam(@PathVari
 
         return new ResultDetailResponse<>(ResultCode.UPDATE_MENTORING_TEAM,
                 mentoringTeamService.getMentoringTeam(
-                        mentoringTeamService.findMentoringTeam(teamId)));
+                        mentoringTeamService.findMentoringTeamForUpdate(teamId)));
     }
     @Override
     @GetMapping("/teams/{teamId}")

src/main/java/com/project/Teaming/domain/mentoring/service/MentoringBoardService.java

@@ -93,6 +93,10 @@ public MentoringBoard findMentoringPost(Long postId) {
 
         return mentoringBoard;
     }
+    @Transactional
+    public MentoringBoard findMentoringPostForUpdate(Long postId) {
+        return mentoringBoardDataProvider.findBoard(postId);
+    }
 
     @Transactional(readOnly = true)
     public BoardSpecResponse toDto(MentoringBoard mentoringPost) {

src/main/java/com/project/Teaming/domain/mentoring/service/MentoringTeamService.java

@@ -111,6 +111,13 @@ public MentoringTeam findMentoringTeam(Long mentoringTeamId) {
         return mentoringTeam;
     }
 
+    @Transactional
+    public MentoringTeam findMentoringTeamForUpdate(Long mentoringTeamId) {
+        MentoringTeam mentoringTeam = mentoringTeamDataProvider.findMentoringTeam(mentoringTeamId);
+        mentoringTeamPolicy.validateTeamStatus(mentoringTeam);
+        return mentoringTeam;
+    }
+
     /**
      * 내 멘토링 팀들을 모두 찾는 로직
      * @return