refact: 챌린지 목록 조회 시 챌린지의 mode 응답 추가

Author: HuniHuns

src/main/java/targeter/aim/domain/challenge/dto/ChallengeDto.java

@@ -187,6 +187,9 @@ public static class ChallengeListResponse {
         @Schema(description = "챌린지 아이디", example = "1")
         private Long challengeId;
 
+        @Schema(description = "챌린지 모드", example = "VS | SOLO")
+        private ChallengeMode mode;
+
         @Schema(description = "챌린지 썸네일")
         private FileDto.FileResponse thumbnail;
 

src/main/java/targeter/aim/domain/challenge/repository/ChallengeQueryRepository.java

@@ -550,6 +550,7 @@ private ChallengeDto.ChallengeListResponse mapToDto(
 
         return ChallengeDto.ChallengeListResponse.builder()
                 .challengeId(c.getId())
+                .mode(c.getMode())
                 .thumbnail(challengeImage != null
                         ? FileDto.FileResponse.from(challengeImage)
                         : null)