refactor(skill): 调整技能触发枚举的存放位置与使用方式

将SkillTriggerType枚举从GameEvent.ts迁移到heroSet.ts，统一管理技能触发相关配置，同时更新所有引用该枚举的文件路径，优化代码结构与维护性

assets/script/game/hero/Mon.ts

@@ -8,7 +8,8 @@ import { HeroAttrsComp } from "./HeroAttrsComp";
 import { HeroViewComp } from "./HeroViewComp";
 import { MoveComp } from "./MoveComp";
 import { MonMoveComp } from "./MonMoveComp";
-import { GameEvent, SkillTriggerType } from "../common/config/GameEvent";
+import { GameEvent } from "../common/config/GameEvent";
+import { SkillTriggerType } from "../common/config/heroSet";
 import { SkillTriggerHelper } from "./SkillTriggerHelper";
 /** 怪物实体：负责怪物对象池复用、属性初始化、入场动画与回收 */
 @ecs.register(`Monster`)