feat: 添加击晕状态相关功能

1. 新增击晕概率、抗性属性配置与组件字段
2. 实现击晕判定逻辑与视图特效播放
3. 增加击晕时技能CD暂停清零的处理
4. 配置默认击晕持续时间为2秒

assets/script/game/hero/HeroViewComp.ts

@@ -308,6 +308,11 @@ export class HeroViewComp extends CCComp {
         this.spawnTimedFx("game/skill/buff/iced", this.node, t);
     }
     
+    /** 击晕特效 */
+    in_stun(t: number = 1) {
+        this.spawnTimedFx("game/skill/buff/stun", this.node, t);
+    }
+    
     /** 技能提示 */
     private tooltip(type: number = 1, value: string = "", s_uuid: number = 1001, y: number = 50) {
         let pos = v3(0, 60);