refactor(hero): 优化英雄对象池管理及视图初始化

- 在Monster类中实现多键对象池管理，提升英雄节点复用效率
- 将HeroViewComp的初始化逻辑提取到独立init方法，便于对象池复用时重置状态
- 移除HeroSpine中冗余的onDestroy方法
- 修复HeroViewComp中方向缩放计算问题，确保scale.x为正
- 优化碰撞体启用逻辑，延迟一帧确保物理系统正确注册
- 清理HeroViewComp中残留的定时器和缓动

assets/script/Main.ts

@@ -12,11 +12,11 @@ const { ccclass, property } = _decorator;
 @ccclass('Main')
 export class Main extends Root {
     start() {
-        // PhysicsSystem2D.instance.debugDrawFlags = EPhysics2DDrawFlags.Aabb 
-        // |EPhysics2DDrawFlags.Pair 
-        // |EPhysics2DDrawFlags.CenterOfMass 
-        // |EPhysics2DDrawFlags.Joint 
-        // |EPhysics2DDrawFlags.Shape;
+        PhysicsSystem2D.instance.debugDrawFlags = EPhysics2DDrawFlags.Aabb 
+        |EPhysics2DDrawFlags.Pair 
+        |EPhysics2DDrawFlags.CenterOfMass 
+        |EPhysics2DDrawFlags.Joint 
+        |EPhysics2DDrawFlags.Shape;
     }
     protected async run() {
         smc.initialize = ecs.getEntity<Initialize>(Initialize);