refactor: 细化ECS/Core目录结构 - 按功能拆分为Events/Query/Performance/Storage四个子模块

source/src/ECS/Core/Events/index.ts

@@ -0,0 +1,2 @@
+export { EventBus, GlobalEventBus, EventHandler, AsyncEventHandler } from '../EventBus';
+export { TypeSafeEventSystem, EventListenerConfig, EventStats } from '../EventSystem'; 

source/src/ECS/Core/Performance/index.ts

@@ -0,0 +1,22 @@
+export { 
+    ComponentIndexManager, 
+    HashComponentIndex, 
+    BitmapComponentIndex, 
+    IndexType 
+} from '../ComponentIndex';
+
+export { 
+    ArchetypeSystem, 
+    Archetype, 
+    ArchetypeQueryResult 
+} from '../ArchetypeSystem';
+
+export { 
+    DirtyTrackingSystem, 
+    DirtyFlag, 
+    DirtyData, 
+    DirtyListener 
+} from '../DirtyTrackingSystem';
+
+export { IndexUpdateBatcher } from '../IndexUpdateBatcher';
+export { BitMaskOptimizer } from '../BitMaskOptimizer'; 

source/src/ECS/Core/Query/index.ts

@@ -0,0 +1,3 @@
+export { QuerySystem } from '../QuerySystem';
+export { ECSFluentAPI, createECSAPI } from '../FluentAPI';
+export { EntityManager, EntityQueryBuilder } from '../EntityManager'; 

source/src/ECS/Core/Storage/index.ts

@@ -0,0 +1,2 @@
+export { ComponentPool } from '../ComponentPool';
+export { ComponentStorage } from '../ComponentStorage'; 

source/src/ECS/index.ts

@@ -1,7 +1,11 @@
-// 导出核心ECS类
 export { Entity } from './Entity';
 export { Component } from './Component';
-export { CoreEvents } from './CoreEvents';
+export { CoreEvents, ECSEventType, EventPriority, EVENT_TYPES, EventTypeValidator } from './CoreEvents';
 export * from './Systems';
 export * from './Utils';
-export { Scene } from './Scene'; 
+export { Scene } from './Scene';
+export { EntityManager, EntityQueryBuilder } from './Core/EntityManager';
+export * from './Core/Events';
+export * from './Core/Query';
+export * from './Core/Performance';
+export * from './Core/Storage';