емиии

@Entity
@Getter
@Setter
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class User {
    @Id
    @GeneratedValue(generator = "UUID")
    @GenericGenerator(
        name = "UUID",
        strategy = "org.hibernate.id.UUIDGenerator"
    )
    @Column(updatable = false, nullable = false)
    private UUID id;

    @Column(unique = true, nullable = false)
    private String username;

    @Column(nullable = false)
    private String password;

    @Email
    @NotNull
    private String email;

    private String firstName;
    private String lastName;
    private String profilePicture;

    @OneToMany(mappedBy = "sender")
    private List<Message> sentMessages;

    @OneToMany(mappedBy = "receiver")
    private List<Message> receivedMessages;
}