[fix] 구글 로그인 response 추가

src/main/java/com/example/comma/domain/user/controller/OauthController.java

@@ -32,12 +32,15 @@ ResponseEntity<SuccessResponse<?>> googleLogin(@RequestParam (name = "code") Str
         User user = userRepository.findById(userId).orElseThrow(() -> new EntityNotFoundException(ErrorCode.USER_NOT_FOUND));
 
         String nickname = user.getNickname();
-        if (nickname == null) {
-            nickname = userService.generateNickname();
+        if (nickname == null) { //
+            nickname = UserService.generateNickname();
+            LoginResponseDto response = new LoginResponseDto(accessToken, nickname,true);
+            return SuccessResponse.ok(response);
+        }
+        else{
+            LoginResponseDto response = new LoginResponseDto(accessToken, nickname,false);
+            return SuccessResponse.ok(response);
         }
-
-        LoginResponseDto response = new LoginResponseDto(accessToken, nickname);
-        return SuccessResponse.ok(response);
     }
 
 

src/main/java/com/example/comma/domain/user/dto/response/LoginResponseDto.java

@@ -2,6 +2,7 @@
 
 public record LoginResponseDto(
         String accessToken,
-        String nickname
+        String nickname,
+        Boolean isNew
 ) {
 }