fix(SCOPONE-0006): remove stale capture handlers when switching card selection

- Track table card images with capture listeners in captureListenerImgs[]
- Clear pointerdown handlers in clearHighlights() before destroying overlays
- Prevents wrong capture executing when selecting a different hand card

src/scenes/GameScene.ts

@@ -89,6 +89,7 @@ export class GameScene extends Phaser.Scene {
   private selectedGlowTween: Phaser.Tweens.Tween | null = null;
   private pendingCaptures: Card[][] = [];
   private tableHighlights: Phaser.GameObjects.GameObject[] = [];
+  private captureListenerImgs: Phaser.GameObjects.Image[] = [];
   private aiThinking = false;
 
   private tableCenter!: { x: number; y: number };
@@ -734,6 +735,7 @@ export class GameScene extends Phaser.Scene {
       this.tableHighlights.push(hl);
       img.setInteractive({ useHandCursor: true });
       img.once('pointerdown', () => this.confirmMove(this.selectedCard!, capture));
+      this.captureListenerImgs.push(img);
     }
   }
 
@@ -776,6 +778,7 @@ export class GameScene extends Phaser.Scene {
           this.tableHighlights.push(hl);
           img.setInteractive({ useHandCursor: true });
           img.once('pointerdown', () => this.confirmMove(this.selectedCard!, cap));
+          this.captureListenerImgs.push(img);
         }
       }
     });
@@ -800,6 +803,8 @@ export class GameScene extends Phaser.Scene {
   }
 
   private clearHighlights(): void {
+    for (const img of this.captureListenerImgs) img.off('pointerdown');
+    this.captureListenerImgs = [];
     for (const h of this.tableHighlights) h.destroy();
     this.tableHighlights = [];
   }