feat(map): add mask node click close function for info popup

1. 新增遮罩节点属性与编辑器绑定配置
2. 实现点击弹窗外遮罩区域自动关闭弹窗逻辑
3. 添加兜底查找遮罩节点的逻辑
4. 完善事件的注册与注销处理

assets/script/game/map/SinfoComp.ts

@@ -125,6 +125,10 @@ export class SinfoComp extends CCComp {
     @property({ type: Node, displayName: "关闭按钮" })
     private close_btn: Node = null;
 
+    /** 全屏遮罩节点（铺满屏幕，点击弹窗主体以外区域关闭） */
+    @property({ type: Node, displayName: "遮罩节点" })
+    private mask_node: Node = null;
+
     /** 技能未激活图标背景（技能未激活时显示，已激活隐藏） */
     @property({ type: Node, displayName: "未激活图标背景" })
     private inactive_bg: Node = null;
@@ -144,6 +148,11 @@ export class SinfoComp extends CCComp {
             this.close_btn = this.node.getChildByName("close");
         }
         this.close_btn?.on(NodeEventType.TOUCH_END, this.onCloseClick, this);
+        // 遮罩点击关闭：编辑器未绑定时按节点名 "mask" 兜底查找
+        if (!this.mask_node) {
+            this.mask_node = this.node.getChildByName("mask");
+        }
+        this.mask_node?.on(NodeEventType.TOUCH_END, this.onMaskClick, this);
     }
 
     onDisable() {
@@ -161,6 +170,9 @@ export class SinfoComp extends CCComp {
         if (this.close_btn && this.close_btn.isValid) {
             this.close_btn.off(NodeEventType.TOUCH_END, this.onCloseClick, this);
         }
+        if (this.mask_node && this.mask_node.isValid) {
+            this.mask_node.off(NodeEventType.TOUCH_END, this.onMaskClick, this);
+        }
         // 注销全局触摸监听
         input.off(Input.EventType.TOUCH_END, this.onGlobalTouch, this);
     }
@@ -194,6 +206,13 @@ export class SinfoComp extends CCComp {
         this.close();
     }
 
+    /** 遮罩点击：触点位于弹窗主体之外，直接关闭 */
+    private onMaskClick(event: EventTouch) {
+        event.propagationStopped = true;
+        oops.audio.playEffect("music/button");
+        this.close();
+    }
+
     /** 全局触摸结束：触点落在弹窗包围盒外才关闭 */
     private onGlobalTouch(event: EventTouch) {
         if (!this.node || !this.node.isValid) return;