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/infrastructure/events/EditorEventBus.ts

@@ -0,0 +1,137 @@
+type EventHandler<T = any> = (data: T) => void;
+
+interface Subscription {
+    unsubscribe: () => void;
+}
+
+export enum EditorEvent {
+    NODE_CREATED = 'node:created',
+    NODE_DELETED = 'node:deleted',
+    NODE_UPDATED = 'node:updated',
+    NODE_MOVED = 'node:moved',
+    NODE_SELECTED = 'node:selected',
+
+    CONNECTION_ADDED = 'connection:added',
+    CONNECTION_REMOVED = 'connection:removed',
+
+    EXECUTION_STARTED = 'execution:started',
+    EXECUTION_PAUSED = 'execution:paused',
+    EXECUTION_RESUMED = 'execution:resumed',
+    EXECUTION_STOPPED = 'execution:stopped',
+    EXECUTION_TICK = 'execution:tick',
+    EXECUTION_NODE_STATUS_CHANGED = 'execution:node_status_changed',
+
+    TREE_SAVED = 'tree:saved',
+    TREE_LOADED = 'tree:loaded',
+    TREE_VALIDATED = 'tree:validated',
+
+    BLACKBOARD_VARIABLE_UPDATED = 'blackboard:variable_updated',
+    BLACKBOARD_RESTORED = 'blackboard:restored',
+
+    CANVAS_ZOOM_CHANGED = 'canvas:zoom_changed',
+    CANVAS_PAN_CHANGED = 'canvas:pan_changed',
+    CANVAS_RESET = 'canvas:reset',
+
+    COMMAND_EXECUTED = 'command:executed',
+    COMMAND_UNDONE = 'command:undone',
+    COMMAND_REDONE = 'command:redone'
+}
+
+export class EditorEventBus {
+    private listeners: Map<string, Set<EventHandler>> = new Map();
+    private eventHistory: Array<{ event: string; data: any; timestamp: number }> = [];
+    private maxHistorySize: number = 100;
+
+    on<T = any>(event: EditorEvent | string, handler: EventHandler<T>): Subscription {
+        if (!this.listeners.has(event)) {
+            this.listeners.set(event, new Set());
+        }
+
+        this.listeners.get(event)!.add(handler);
+
+        return {
+            unsubscribe: () => this.off(event, handler)
+        };
+    }
+
+    once<T = any>(event: EditorEvent | string, handler: EventHandler<T>): Subscription {
+        const wrappedHandler = (data: T) => {
+            handler(data);
+            this.off(event, wrappedHandler);
+        };
+
+        return this.on(event, wrappedHandler);
+    }
+
+    off<T = any>(event: EditorEvent | string, handler: EventHandler<T>): void {
+        const handlers = this.listeners.get(event);
+        if (handlers) {
+            handlers.delete(handler);
+            if (handlers.size === 0) {
+                this.listeners.delete(event);
+            }
+        }
+    }
+
+    emit<T = any>(event: EditorEvent | string, data?: T): void {
+        if (this.eventHistory.length >= this.maxHistorySize) {
+            this.eventHistory.shift();
+        }
+        this.eventHistory.push({
+            event,
+            data,
+            timestamp: Date.now()
+        });
+
+        const handlers = this.listeners.get(event);
+        if (handlers) {
+            handlers.forEach((handler) => {
+                try {
+                    handler(data);
+                } catch (error) {
+                    console.error(`Error in event handler for ${event}:`, error);
+                }
+            });
+        }
+    }
+
+    clear(event?: EditorEvent | string): void {
+        if (event) {
+            this.listeners.delete(event);
+        } else {
+            this.listeners.clear();
+        }
+    }
+
+    getListenerCount(event: EditorEvent | string): number {
+        return this.listeners.get(event)?.size || 0;
+    }
+
+    getAllEvents(): string[] {
+        return Array.from(this.listeners.keys());
+    }
+
+    getEventHistory(count?: number): Array<{ event: string; data: any; timestamp: number }> {
+        if (count) {
+            return this.eventHistory.slice(-count);
+        }
+        return [...this.eventHistory];
+    }
+
+    clearHistory(): void {
+        this.eventHistory = [];
+    }
+}
+
+let globalEventBus: EditorEventBus | null = null;
+
+export function getGlobalEventBus(): EditorEventBus {
+    if (!globalEventBus) {
+        globalEventBus = new EditorEventBus();
+    }
+    return globalEventBus;
+}
+
+export function resetGlobalEventBus(): void {
+    globalEventBus = null;
+}