Refactor/clean architecture phase1 (#215)

* refactor(editor): 建立Clean Architecture领域模型层

* refactor(editor): 实现应用层架构 - 命令模式、用例和状态管理

* refactor(editor): 实现展示层核心Hooks

* refactor(editor): 实现基础设施层和展示层组件

* refactor(editor): 迁移画布和连接渲染到 Clean Architecture 组件

* feat(editor): 集成应用层架构和命令模式，实现撤销/重做功能

* refactor(editor): UI组件拆分

* refactor(editor): 提取快速创建菜单逻辑

* refactor(editor): 重构BehaviorTreeEditor，提取组件和Hook

* refactor(editor): 提取端口连接和键盘事件Hook

* refactor(editor): 提取拖放处理Hook

* refactor(editor): 提取画布交互Hook和工具函数

* refactor(editor): 完成核心重构

* fix(editor): 修复节点无法创建和连接

* refactor(behavior-tree,editor): 重构节点子节点约束系统，实现元数据驱动的架构

packages/editor-app/src/domain/errors/DomainError.ts

@@ -0,0 +1,10 @@
+/**
+ * 领域错误基类
+ */
+export abstract class DomainError extends Error {
+    constructor(message: string) {
+        super(message);
+        this.name = this.constructor.name;
+        Object.setPrototypeOf(this, new.target.prototype);
+    }
+}

packages/editor-app/src/domain/errors/NodeNotFoundError.ts

@@ -0,0 +1,10 @@
+import { DomainError } from './DomainError';
+
+/**
+ * 节点未找到错误
+ */
+export class NodeNotFoundError extends DomainError {
+    constructor(public readonly nodeId: string) {
+        super(`节点未找到: ${nodeId}`);
+    }
+}

packages/editor-app/src/domain/errors/ValidationError.ts

@@ -0,0 +1,52 @@
+import { DomainError } from './DomainError';
+
+/**
+ * 验证错误
+ * 当业务规则验证失败时抛出
+ */
+export class ValidationError extends DomainError {
+    constructor(
+        message: string,
+        public readonly field?: string,
+        public readonly value?: unknown
+    ) {
+        super(message);
+    }
+
+    static rootNodeMaxChildren(): ValidationError {
+        return new ValidationError(
+            '根节点只能连接一个子节点',
+            'children'
+        );
+    }
+
+    static decoratorNodeMaxChildren(): ValidationError {
+        return new ValidationError(
+            '装饰节点只能连接一个子节点',
+            'children'
+        );
+    }
+
+    static leafNodeNoChildren(): ValidationError {
+        return new ValidationError(
+            '叶子节点不能有子节点',
+            'children'
+        );
+    }
+
+    static circularReference(nodeId: string): ValidationError {
+        return new ValidationError(
+            `检测到循环引用，节点 ${nodeId} 不能连接到自己或其子节点`,
+            'connection',
+            nodeId
+        );
+    }
+
+    static invalidConnection(from: string, to: string, reason: string): ValidationError {
+        return new ValidationError(
+            `无效的连接：${reason}`,
+            'connection',
+            { from, to }
+        );
+    }
+}

packages/editor-app/src/domain/errors/index.ts

@@ -0,0 +1,3 @@
+export { DomainError } from './DomainError';
+export { ValidationError } from './ValidationError';
+export { NodeNotFoundError } from './NodeNotFoundError';