Fix AI multiple moves and player colors

public/game.js

@@ -13,10 +13,10 @@ const ANIMATION_DURATION = 300;
 
 // Player colors
 const PLAYER_COLORS = {
-  1: '#4ecca3',
-  2: '#e94560',
-  3: '#f9ed69',
-  4: '#a8e6cf'
+  1: '#4ecca3',  // teal/green
+  2: '#e94560',  // red/pink
+  3: '#f9ed69',  // yellow
+  4: '#00adb5'   // cyan/blue
 };
 
 // Colors
@@ -26,7 +26,7 @@ const COLORS = {
   player1: '#4ecca3',
   player2: '#e94560',
   player3: '#f9ed69',
-  player4: '#a8e6cf',
+  player4: '#00adb5',
   highlight: 'rgba(255, 255, 255, 0.3)',
   selected: 'rgba(233, 69, 96, 0.6)',
   target: 'rgba(78, 204, 163, 0.5)',