fix: 修复 setDevice 的时机，从 currentDocument -> simualtor

fix: 根据 canDropIn 来支持选择 Page 节点时是否可添加组件

packages/designer/src/document/node/node.ts

@@ -910,6 +910,12 @@ export class Node<Schema extends NodeSchema = NodeSchema> {
       if (dropElement) {
         return { container: dropElement, ref };
       }
+      const rootCanDropIn = this.componentMeta?.prototype?.options?.canDropIn;
+      if (rootCanDropIn === undefined
+          || rootCanDropIn === true
+          || (typeof rootCanDropIn === 'function' && rootCanDropIn(node))) {
+        return { container: this, ref };
+      }
       // 假如最后找不到合适位置，返回 undefined 阻止继续插入节点
       return undefined;
     }

packages/designer/src/project/project.ts

@@ -248,6 +248,7 @@ export class Project {
   private mountSimulator(simulator: ISimulatorHost) {
     // TODO: 多设备 simulator 支持
     this._simulator = simulator;
+    this.designer.editor.set('simulator', simulator);
   }
 
   setRendererReady(renderer: any) {

packages/editor-preset-vision/src/viewport.ts

@@ -194,8 +194,8 @@ export class Viewport {
   async setDevice(device = 'pc') {
     if (this.getDevice() !== device) {
       this.device = device;
-      const currentDocument = await editor.onceGot('currentDocument');
+      const simulator = await editor.onceGot('simulator');
-      currentDocument?.simulator?.set('device', device === 'mobile' ? 'mobile' : 'default');
+      simulator?.set('device', device === 'mobile' ? 'mobile' : 'default');
       // Flags.setSimulator(device);
       // this.applyMediaCSS();
       this.emitter.emit('devicechange', device);