refactor(skill): 重构技能触发逻辑，提取统一工具类

将分散在Hero、Mon、HeroAtkSystem、SCastSystem、MissionComp中的技能触发代码统一封装，集中处理触发次数加成、实体合法性校验与技能事件派发，同时新增SkillTriggerType枚举统一管理技能触发类型，简化业务调用并消除重复模板代码。

assets/script/game/hero/Hero.ts

@@ -6,7 +6,8 @@ import { HeroAttrsComp } from "./HeroAttrsComp";
 import { HeroViewComp } from "./HeroViewComp";
 import { BoxSet, FacSet, FightSet, IndexSet } from "../common/config/GameSet";
 import { HeroInfo, HeroPos, resolveFormationTargetX } from "../common/config/heroSet";
-import { GameEvent } from "../common/config/GameEvent";
+import { GameEvent, SkillTriggerType } from "../common/config/GameEvent";
+import { SkillTriggerHelper } from "./SkillTriggerHelper";
 import { Attrs} from "../common/config/HeroAttrs";
 import { MoveComp } from "./MoveComp";
 import { mLogger } from "../common/Logger";
@@ -222,24 +223,7 @@ export class Hero extends ecs.Entity {
                 }
 
                 // 落地后触发 call 技能
-                if (model && model.call && model.call.length > 0) {
-                    let triggerCount = 1 + HeroAttrsComp.getFieldSkillTotalValue(FieldSkillType.SummonCount);
-                    if (model.fac === FacSet.HERO) {
-                        triggerCount += HeroAttrsComp.getTalentValue(TalentType.Summon); // 召唤强化额外次数
-                    }
-                    triggerCount = Math.max(1, Math.floor(triggerCount));
-                    
-                    for (let i = 0; i < triggerCount; i++) {
-                        model.call.forEach(uuid => {
-                            oops.message.dispatchEvent(GameEvent.TriggerSkill, {
-                                s_uuid: uuid,
-                                heroAttrs: model,
-                                heroView: view,
-                                triggerType: 'call'
-                            });
-                        });
-                    }
-                }
+                SkillTriggerHelper.trigger(SkillTriggerType.Call, model, view);
             })
             .start();
     }