refactor: 统一三个数据层的接口风格

packages-user/data-system/src/index.ts

@@ -1,2 +1,4 @@
 export * from './combat';
 export * from './trigger';
+
+export * from './types';

packages-user/data-system/src/types.ts

@@ -0,0 +1,12 @@
+import { IStateBase } from '@user/data-base';
+import { IEnemyContext } from './combat';
+
+export interface IStateSystem<TEnemy, THero> extends IStateBase<TEnemy, THero> {
+    /** 怪物上下文 */
+    readonly enemyContext: IEnemyContext<TEnemy, THero>;
+}
+
+export interface IStateSystemExtended<TEnemy = unknown, THero = unknown> {
+    /** 当前对象对应的执行层对象（Layer 2 对象） */
+    readonly state: IStateSystem<TEnemy, THero>;
+}