[fix] #174 response body 수정

src/main/java/com/ggang/be/api/group/controller/GroupController.java

@@ -81,7 +81,7 @@ public ResponseEntity<ApiResponse<ReadFillMembersResponse>> getGroupMembers(
     }
 
     @GetMapping("/my/groups")
-    public ResponseEntity<ApiResponse<List<MyGroupResponse>>> getMyGroups(
+    public ResponseEntity<ApiResponse<FinalMyGroupResponse>> getMyGroups(
             @RequestHeader("Authorization") final String accessToken,
             @RequestParam(value = "category") FillGroupType category,
             @RequestParam(value = "status") boolean status
@@ -92,7 +92,11 @@ public ResponseEntity<ApiResponse<List<MyGroupResponse>>> getMyGroups(
             throw new GongBaekException(ResponseError.BAD_REQUEST);
         }
 
-        return ResponseBuilder.ok(groupFacade.getMyGroups(userId, category, status));
+        FinalMyGroupResponse finalResponse = new FinalMyGroupResponse(
+                groupFacade.getMyGroups(userId, category, status)
+        );
+
+        return ResponseBuilder.ok(finalResponse);
     }
 
     @GetMapping("/fill/groups")

src/main/java/com/ggang/be/api/group/dto/FinalMyGroupResponse.java

@@ -0,0 +1,8 @@
+package com.ggang.be.api.group.dto;
+
+import java.util.List;
+
+public record FinalMyGroupResponse(
+        List<MyGroupResponse> groups
+) {
+}