fix: 收敛战斗内存增长并强化战斗结束清理

assets/script/game/hero/SCastSystem.ts

@@ -25,9 +25,16 @@ export class SCastSystem extends ecs.ComblockSystem implements ecs.ISystemUpdate
     debugMode: boolean = false;  // 是否启用调试模式
     private readonly emptyCastPlan = { skillId: 0, isFriendly: false, targetPos: null as Vec3 | null, targetEids: [] as number[] };
     private readonly meleeCastRange = 64;
+    private heroMatcher: ecs.IMatcher | null = null;
+    private getHeroMatcher(): ecs.IMatcher {
+        if (!this.heroMatcher) {
+            this.heroMatcher = ecs.allOf(HeroAttrsComp, HeroViewComp);
+        }
+        return this.heroMatcher;
+    }
     
     filter(): ecs.IMatcher {
-        return ecs.allOf(HeroAttrsComp, HeroViewComp);
+        return this.getHeroMatcher();
     }
 
     update(e: ecs.Entity): void {
@@ -181,7 +188,7 @@ export class SCastSystem extends ecs.ComblockSystem implements ecs.ISystemUpdate
         const currentX = heroView.node.position.x;
         let nearest: HeroViewComp | null = null;
         let minDist = Infinity;
-        ecs.query(this.filter()).forEach(entity => {
+        ecs.query(this.getHeroMatcher()).forEach(entity => {
             const attrs = entity.get(HeroAttrsComp);
             const view = entity.get(HeroViewComp);
             if (!attrs || !view?.node) return;