issue # ExampleEntity 파일 수정

src/main/java/com/baekyangdan/scheduler/entity/ExampleEntity.java

@@ -1,28 +1,41 @@
+import jakarta.persistence.*;
 import lombok.*;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+import java.time.LocalDateTime;
+import java.util.UUID;
 
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @AllArgsConstructor(access = AccessLevel.PRIVATE)
 @Builder
 @Entity
-@TABLE(name = "example")
-public class Example {
+@Table(
+    name = "users",
+    indexes = @Index(name = "idx_users_email", columnList = "email")
+)
+public class User {
 
     @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private String id;
+    @GeneratedValue
+    @org.hibernate.annotations.UuidGenerator
+    private UUID id;
 
-    @Column(nullable = true, length = 50)
-    private String username;
+    @Column(nullable = false, length = 50)
+    private String userName;
+
+    @Column(nullable = false, unique = true, length = 100)
+    private String email;
 
-    @Builder.Default
     @Column(nullable = false)
-    private Boolean isDeleted = false;
+    private Boolean active;
+
+    @Enumerated(EnumType.STRING)
+    private Role role;
 
     @CreationTimestamp
     private LocalDateTime createdAt;
 
-    public void delete() {
-        this.isDeleted = true;
-    }
+    @UpdateTimestamp
+    private LocalDateTime updatedAt;
 }