feat: User DTO 추가

Author: MEOHIN

src/main/java/com/back/domain/user/dto/UserDto.java

@@ -0,0 +1,38 @@
+package com.back.domain.user.dto;
+
+import com.back.domain.user.entity.User;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class UserDto {
+
+    private Long id;
+    private String email;
+    private String nickname;
+    private String profileImgUrl;
+    private Double abvDegree;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+
+    public static UserDto from(User user) {
+        if (user == null) return null;
+        return UserDto.builder()
+                .id(user.getId())
+                .email(user.getEmail())
+                .nickname(user.getNickname())
+                .profileImgUrl(user.getProfileImgUrl())
+                .abvDegree(user.getAbvDegree())
+                .createdAt(user.getCreatedAt())
+                .updatedAt(user.getUpdatedAt())
+                .build();
+    }
+}
+