(refactor) 이벤트 메인 페이지 api 응답값 수정

src/main/java/com/server/eventee/domain/event/converter/EventConverter.java

@@ -82,7 +82,7 @@ public EventResponse.CreateResponse toCreateResponse(Event event, Member member)
         .build();
   }
 
-  public EventResponse.EventWithGroupsResponse toEventWithGroupsResponse(Event event, List<Group> groups, MemberEventRole role) {
+  public EventResponse.EventWithGroupsResponse toEventWithGroupsResponse(Event event, List<Group> groups, MemberEventRole role, String nickname) {
 
     List<EventResponse.EventWithGroupsResponse.GroupSummary> groupDtos =
         groups.stream()
@@ -101,6 +101,7 @@ public EventResponse.EventWithGroupsResponse toEventWithGroupsResponse(Event eve
         .eventTitle(event.getTitle())
         .eventDescription(event.getDescription())
         .eventRole(role.name())
+        .nickname(nickname)
         .thumbnailUrl(event.getThumbnailUrl())
         .startAt(event.getStartAt())
         .endAt(event.getEndAt())

src/main/java/com/server/eventee/domain/event/dto/EventResponse.java

@@ -65,6 +65,7 @@ public record EventWithGroupsResponse(
       @Schema(description = "이벤트 제목") String eventTitle,
       @Schema(description = "이벤트 설명") String eventDescription,
       @Schema(description = "현 사용자의 역할") String eventRole,
+      @Schema(description = "현 사용자의 이벤트용 닉네임") String nickname,
       @Schema(description = "썸네일 URL") String thumbnailUrl,
       @Schema(description = "시작일") LocalDateTime startAt,
       @Schema(description = "종료일") LocalDateTime endAt,

src/main/java/com/server/eventee/domain/event/service/EventServiceImpl.java

@@ -130,7 +130,7 @@ public EventResponse.EventWithGroupsResponse getEventGroups(Member member, Long
 
     List<Group> groups = groupRepository.findAllByEventId(eventId);
 
-    return eventConverter.toEventWithGroupsResponse(event, groups, relation.getRole());
+    return eventConverter.toEventWithGroupsResponse(event, groups, relation.getRole(), relation.getNickname());
   }
 
   /* ============================================