MAPG-235 challengeInitialData implemented and first round is loaded

src/PersistentData/Model/UserInChallenge.php

@@ -16,7 +16,7 @@ class UserInChallenge extends Model
 
     private ?int $challengeId = null;
 
-    private int $round = -1;
+    private int $round = 0;
 
     private int $score = 0;