dev add updateTime

src/main/java/ru/soune/nocopy/entity/notification/Notification.java

@@ -26,7 +26,7 @@ public class Notification {
 
     @Column(name = "created_at", updatable = false)
     @CreatedDate
-    private LocalDateTime createdAt;
+    private LocalDateTime createdAt = LocalDateTime.now();
 
     @LastModifiedDate
     @Column(name = "updated_at")
@@ -46,4 +46,13 @@ public class Notification {
     @JoinColumn(name = "user_id")
     @JsonIgnore
     private User user;
+
+    @PrePersist
+    public void prePersist() {
+        if (this.createdAt == null) {
+            this.createdAt = LocalDateTime.now();
+        }
+
+        this.updatedAt = LocalDateTime.now();
+    }
 }