refactor: 멘토의 멘토링 조회 시, confirm 여부 포함하여 응답하도록 (#441)

* refactor: 멘토가 멘토링 조회할 때, confirm 되었는지도 함께 응답

* refactor: 비슷한 두 코드의 형식 통일

- getMentoringsForMentee와 getMentoringsForMentor가 같은 구조를 갖도록

Author: nayonsoso

src/main/java/com/example/solidconnection/mentor/dto/MentoringForMentorResponse.java

@@ -9,6 +9,7 @@ public record MentoringForMentorResponse(
         String profileImageUrl,
         String nickname,
         boolean isChecked,
+        boolean isConfirmed,
         ZonedDateTime createdAt
 ) {
 
@@ -18,6 +19,7 @@ public static MentoringForMentorResponse of(Mentoring mentoring, SiteUser partne
                 partner.getProfileImageUrl(),
                 partner.getNickname(),
                 mentoring.getCheckedAtByMentor() != null,
+                mentoring.getConfirmedAt() != null,
                 mentoring.getCreatedAt()
         );
     }

src/main/java/com/example/solidconnection/mentor/service/MentoringQueryService.java

@@ -42,10 +42,10 @@ public SliceResponse<MentoringForMenteeResponse> getMentoringsForMentee(
             throw new CustomException(ErrorCode.UNAUTHORIZED_MENTORING, "거절된 멘토링은 조회할 수 없습니다.");
         }
         Slice<Mentoring> mentoringSlice = mentoringRepository.findAllByMenteeIdAndVerifyStatus(siteUserId, verifyStatus, pageable);
-        List<Mentoring> mentorings = mentoringSlice.toList();
 
         Map<Mentoring, SiteUser> mentoringToPartnerUser = mapMentoringToPartnerUserWithBatchQuery(
-                mentorings, Mentoring::getMentorId
+                mentoringSlice.toList(),
+                Mentoring::getMentorId
         );
 
         List<MentoringForMenteeResponse> content = new ArrayList<>();