return SAN notation of last move

assets/js/hooks/chessBoard.js

@@ -3,19 +3,16 @@ import { Chess } from 'chess.js';
 
 export const ChessBoard = {
     mounted() {
-    // Initialize chess.js for local rule validation
     this.chess = new Chess();
 
-    // Initialize Chessground
     this.ground = Chessground(this.el, {
       fen: this.chess.fen(),
       movable: {
         color: 'white',
-        free: false, // Don't allow completely arbitrary drops
-        dests: this.getValidDests() // Only allow legal chess moves
+        free: false,
+        dests: this.getValidDests()
       },
       events: {
-        // Triggered when a piece is successfully dropped
         move: (orig, dest, _metadata) => {
           this.handleMove(orig, dest);
         }
@@ -34,30 +31,27 @@ export const ChessBoard = {
   },
 
   handleMove(orig, dest) {
-    // 1. Try to execute the move in chess.js state
     const move = this.chess.move({ from: orig, to: dest, promotion: 'q' });
 
     if (move) {
-      // 2. Telemetry back up to Phoenix LiveView
+        const san = move.san
       this.pushEvent("move_played", { 
         from: orig, 
         to: dest, 
-        fen: this.chess.fen() 
+        san: san,
+        fen: this.chess.fen()
       });
 
-      // 3. Determine whose turn it is now ('w' or 'b')
       const nextTurnColor = this.chess.turn() === 'w' ? 'white' : 'black';
 
-      // 4. Force Chessground to update its internal state for the next player
       this.ground.set({
-        turnColor: nextTurnColor, // Switches turn tracking
+        turnColor: nextTurnColor,
         movable: {
-          color: nextTurnColor,   // 👈 THIS IS CRITICAL: Changes who is allowed to drag pieces!
-          dests: this.getValidDests() // Re-calculates valid legal squares for Black
+          color: nextTurnColor,
+          dests: this.getValidDests()
         }
       });
     } else {
-      // If chess.js says it's an illegal move, snap the piece back instantly
       this.ground.set({ fen: this.chess.fen() });
     }
   }