fix: fix new user saving refs NOISSUE

song_of_the_day/Program.cs

@@ -33,6 +33,7 @@ userCheckTimer.OnOccurence += async (s, ea) =>
                 NickName = string.Empty,
                 IsIntroduced = false
             };
+            dci.Users.Add(newUser);
             needsSaving = true;
         }
     }