Merge pull request #76 from Gongjakso/feat/mypage

[#60] fix: 공고 상세 조회 API 반환 오류 수정

src/main/java/com/gongjakso/server/domain/apply/service/ApplyService.java

@@ -239,7 +239,7 @@ public List<MyPageRes> getMyApplyList(Member member) {
         // Business Logic
         List<Apply> applyList = applyRepository.findAllByMemberAndDeletedAtIsNull(member);
         List<Long> postIdList = applyList.stream()
-                .map(Apply::getApplyId)
+                .map(apply -> apply.getPost().getPostId())
                 .toList();
 
         List<Post> postList = postRepository.findAllByPostIdInAndStatusAndDeletedAtIsNull(postIdList, RECRUITING);