add utilisateur

src/main/java/metier/Session.java

@@ -10,10 +10,10 @@ import jakarta.persistence.OneToMany;
 public class Session {
 
     @Id
-    protected int codePIN;
+    private int codePIN;
 
     @OneToMany
-    ArrayList<Activity> activities;
+    private ArrayList<Activity> activities;
 
     public Session(){
     }