fix : 마이페이지에서 참여중, 호스트 파티 조회시 최신순으로 조회되도록 수정 (#98)

Author: milowon

src/main/java/ita/tinybite/domain/user/controller/UserController.java

@@ -158,19 +158,6 @@ public ResponseEntity<List<PartyCardResponse>> getParticipatingParties(
         return ResponseEntity.ok(response);
     }
 
-//    @Operation(summary = "활성 파티 목록 조회", description = "사용자가 참여 중인 활성 파티 목록을 조회합니다.")
-//    @ApiResponses({
-//            @ApiResponse(responseCode = "200", description = "조회 성공",
-//                    content = @Content(array = @ArraySchema(schema = @Schema(implementation = PartyCardResponse.class)))),
-//            @ApiResponse(responseCode = "401", description = "인증 실패")
-//    })
-//    @GetMapping("/parties/active")
-//    public ResponseEntity<List<PartyCardResponse>> getActiveParties(
-//            @AuthenticationPrincipal Long userId) {
-//        List<PartyCardResponse> response = userService.getActiveParties(userId);
-//        return ResponseEntity.ok(response);
-//    }
-
     @Operation(summary = "닉네임 중복 확인", description = "닉네임 사용 가능 여부를 확인합니다.")
     @ApiResponses({
             @ApiResponse(responseCode = "200", description = "사용 가능한 닉네임"),

src/main/java/ita/tinybite/domain/user/service/UserService.java

@@ -26,6 +26,7 @@
 
 import java.time.LocalDateTime;
 import java.util.Arrays;
+import java.util.Comparator;
 import java.util.List;
 import java.util.Optional;
 import java.util.stream.Collectors;
@@ -181,6 +182,7 @@ public List<PartyCardResponse> getHostingParties(Long userId) {
         );
 
         return parties.stream()
+                .sorted(Comparator.comparing(Party::getCreatedAt).reversed())
                 .map(party -> {
                     int currentParticipants = participantRepository
                             .countByPartyIdAndStatus(party.getId(), ParticipantStatus.APPROVED);
@@ -198,6 +200,8 @@ public List<PartyCardResponse> getParticipatingParties(Long userId) {
                 );
 
         return participants.stream()
+                .sorted(Comparator.comparing(pp -> pp.getParty().getCreatedAt(),
+                        Comparator.reverseOrder()))
                 .map(pp -> {
                     Party party = pp.getParty();
                     int currentParticipants = participantRepository