fix: tighten Ludo piece base positions for better centering

Pull pieces inward toward base center so they sit properly within
the white circle slots instead of near the edges.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

public/js/ludo-constants.js

@@ -107,28 +107,28 @@ var LudoConstants = (function() {
     405: [8, 7],
 
     // P1 Base positions (bottom-left quadrant, center at 3.5, 12.5)
-    500: [2.4, 11.4],
-    501: [4.6, 11.4],
-    502: [2.4, 13.6],
-    503: [4.6, 13.6],
+    500: [2.8, 11.8],
+    501: [4.2, 11.8],
+    502: [2.8, 13.2],
+    503: [4.2, 13.2],
 
     // P2 Base positions (top-left quadrant, center at 3.5, 3.5)
-    600: [2.4, 2.4],
-    601: [4.6, 2.4],
-    602: [2.4, 4.6],
-    603: [4.6, 4.6],
-
-    // P3 Base positions (top-right quadrant, center at 12.5, 3.5)
-    700: [11.4, 2.4],
-    701: [13.6, 2.4],
-    702: [11.4, 4.6],
-    703: [13.6, 4.6],
-
-    // P4 Base positions (bottom-right quadrant, center at 12.5, 12.5)
-    800: [11.4, 11.4],
-    801: [13.6, 11.4],
-    802: [11.4, 13.6],
-    803: [13.6, 13.6]
+    600: [2.8, 2.8],
+    601: [4.2, 2.8],
+    602: [2.8, 4.2],
+    603: [4.2, 4.2],
+
+    // P3 Base positions (top-right quadrant, center at 11.5, 3.5)
+    700: [10.8, 2.8],
+    701: [12.2, 2.8],
+    702: [10.8, 4.2],
+    703: [12.2, 4.2],
+
+    // P4 Base positions (bottom-right quadrant, center at 11.5, 12.5)
+    800: [10.8, 11.8],
+    801: [12.2, 11.8],
+    802: [10.8, 13.2],
+    803: [12.2, 13.2]
   };
 
   var BASE_POSITIONS = {