refactor: MemberEntity 수정

- email 삭제
- tag 추가

src/main/java/com/leets/team2/xclone/domain/member/entities/Member.java

@@ -1,6 +1,6 @@
 package com.leets.team2.xclone.domain.member.entities;
 
-import com.leets.team2.xclone.common.entity.BaseTimeEntity;
+import com.leets.team2.xclone.common.entity.AbstractEntity;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.Table;
@@ -17,19 +17,19 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @AllArgsConstructor(access = AccessLevel.PRIVATE)
 @Getter
-public class Member extends BaseTimeEntity {
-
-  @Column(name = "email", nullable = false)
-  private String email;
+public class Member extends AbstractEntity {
 
   @Column(name = "phone_number", nullable = false)
   private String phoneNumber;
 
   @Column(name = "birth_date", nullable = true)
   private LocalDateTime birthDate;
 
-  @Column(name = "name", nullable = false)
-  private String name;
+  @Column(name = "tag", nullable = false, unique = true)
+  private String tag;
+
+  @Column(name = "nickname", nullable = false)
+  private String nickname;
 
   @Column(name = "introduction", nullable = true)
   private String introduction;