fix: move all game init inside DOMContentLoaded to fix local mode

External scripts load after inline code; LudoConstants was referenced
before its script tag was parsed in local mode.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pages/ludo-game.php

@@ -29,7 +29,7 @@ $extraJs = ['/public/js/ludo-constants.js', '/public/js/ludo-ui.js', '/public/js
 </div>
 
 <script>
-(function() {
+document.addEventListener('DOMContentLoaded', function() {
   var params = new URLSearchParams(window.location.search);
   var mode = params.get('mode') || 'local';
   var playerCount = parseInt(params.get('players') || '4', 10);
@@ -56,12 +56,11 @@ $extraJs = ['/public/js/ludo-constants.js', '/public/js/ludo-ui.js', '/public/js
     activePlayers = allPlayers.slice(0, playerCount);
     bots = {};
     playerNames = {};
-    activePlayers.forEach(function(p, idx) {
+    activePlayers.forEach(function(p) {
       playerNames[p] = LudoConstants.PLAYER_LABELS[p];
     });
   }
 
-  document.addEventListener('DOMContentLoaded', function() {
   LudoUI.renderBoard('#ludo-board');
 
   var isMobile = window.innerWidth < 768;
@@ -93,15 +92,13 @@ $extraJs = ['/public/js/ludo-constants.js', '/public/js/ludo-ui.js', '/public/js
             mode: mode,
             bots: bots,
             difficulty: difficulty,
-              playerNames: playerNames,
-              onGameEnd: arguments.callee
+            playerNames: playerNames
           });
         });
       }
     }
   });
-  });
-})();
+});
 </script>
 
 <?php require __DIR__ . '/../includes/footer.php'; ?>