fix(game): 修复召唤按钮第二次失效和实习生不攻击的Bug

game/ui/HUD.ts

@@ -11,6 +11,7 @@ export class HUD {
   private scene: Phaser.Scene
   private waveBtn: Phaser.GameObjects.Text | null = null
   private waveBannerTimeout: (() => void) | null = null
+  private _onClick: (() => void) | null = null
 
   constructor(scene: Phaser.Scene) {
     this.scene = scene
@@ -22,6 +23,7 @@ export class HUD {
    */
   createWaveButton(onClick: () => void): void {
     if (this.waveBtn) this.waveBtn.destroy()
+    this._onClick = onClick   // 保存引用，供 enableWaveButton 重新绑定
 
     this.waveBtn = this.scene.add
       .text(GAME_WIDTH - 160, HUD_HEIGHT + 20, '▶ 召唤下一波', {
@@ -58,6 +60,11 @@ export class HUD {
   enableWaveButton(): void {
     if (!this.waveBtn) return
     this.waveBtn.setStyle({ color: '#A78BFA', backgroundColor: '#1e3a5f' })
+    // 重新绑定点击事件（disableWaveButton 会 removeAllListeners）
+    this.waveBtn.removeAllListeners('pointerdown')
+    if (this._onClick) {
+      this.waveBtn.on('pointerdown', () => this._onClick!())
+    }
   }
 
   /**