Fix pair chime not playing for local player's own swaps

The swap animation defers state updates to pendingGameState, which
bypassed checkForNewPairs entirely. Now pair detection runs when the
deferred state is applied after the swap animation completes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

client/app.js

@@ -1573,8 +1573,10 @@ class GolfGame {
         this.heldCardFloating.classList.add('hidden');
 
         if (this.pendingGameState) {
+            const oldState = this.gameState;
             this.gameState = this.pendingGameState;
             this.pendingGameState = null;
+            this.checkForNewPairs(oldState, this.gameState);
             this.renderGame();
         }
     }
@@ -2592,7 +2594,6 @@ class GolfGame {
 
                 if (!wasPaired && nowPaired) {
                     // New pair formed!
-                    console.log('[PAIR] New pair detected for', newPlayer.name, 'col', top, bottom, 'isLocal:', newPlayer.id === this.playerId);
                     setTimeout(() => {
                         this.firePairCelebration(newPlayer.id, top, bottom);
                     }, window.TIMING?.celebration?.pairDelay || 50);