Feat: User 엔티티 초기 버전 생성

Author: joonhyong

src/main/java/com/ureca/unity/domain/user/mapper/UserMapper.java

@@ -0,0 +1,16 @@
+package com.ureca.unity.domain.user.mapper;
+
+import com.ureca.unity.domain.user.model.User;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+
+@Mapper
+public interface UserMapper {
+
+    User findByProviderAndProviderId(
+            @Param("provider") String provider,
+            @Param("providerId") String providerId
+    );
+
+    void insert(User user);
+}

src/main/java/com/ureca/unity/domain/user/model/User.java

@@ -0,0 +1,20 @@
+package com.ureca.unity.domain.user.model;
+
+import lombok.*;
+
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class User {
+
+    private Long id;
+
+    private String provider;      // google / naver / kakao
+    private String providerId;    // OAuth 제공자 고유 ID
+
+    private String email;         // nullable
+    private String name;
+
+    private String role;          // ROLE_USER
+}