refactor:[kakao-tech-campus-2nd-step3#43]- refact ArtistInfo

ArtistInfo 엔티티 필드 수정

src/main/java/com/helpmeCookies/user/entity/ArtistInfo.java

@@ -2,6 +2,8 @@
 
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
@@ -19,12 +21,14 @@
 public class ArtistInfo {
 
 	@Id
-	@GeneratedValue(strategy = GenerationType.AUTO)
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
 	private Long id;
-
 	private Long userId;
+	private String nickname;
 
-	private String artistType;
+	@Column(nullable = false)
+	@Enumerated(EnumType.STRING)
+	private ArtistType artistType;
 
 	@Column(nullable = false)
 	private Long totalFollowers;