升级项目框架，移除大部分无用的物理和tween系统

source/src/index.ts

@@ -0,0 +1,32 @@
+/**
+ * ECS Framework - 轻量级实体组件系统框架
+ * 适用于Laya、Cocos等游戏引擎的小游戏开发
+ * @version 2.0.0
+ * @author ECS Framework Team
+ */
+
+// 核心模块
+export { Core } from './Core';
+
+// 核心事件和管理器
+export { CoreEvents } from './ECS/CoreEvents';
+export { Emitter, FuncPack } from './Utils/Emitter';
+export { GlobalManager } from './Utils/GlobalManager';
+export { TimerManager } from './Utils/Timers/TimerManager';
+export { ITimer } from './Utils/Timers/ITimer';
+export { Timer } from './Utils/Timers/Timer';
+
+// ECS核心
+export * from './ECS';
+
+// 数学库
+export * from './Math';
+
+// 工具类
+export { Screen } from './Utils/Screen';
+export * from './Utils/Pool';
+export * from './Utils/PerformanceMonitor';
+export * from './Utils/Extensions';
+
+// 类型定义
+export * from './Types';