fix: 实现 removeDocument

packages/designer/src/document/document-model.ts

@@ -461,7 +461,7 @@ export class DocumentModel {
    * 从项目中移除
    */
   remove() {
-    // this.project.removeDocument(this);
+    this.project.removeDocument(this);
     // todo: ...
   }
 

packages/designer/src/project/project.ts

@@ -69,6 +69,14 @@ export class Project {
     this.documents.forEach((doc) => doc.remove());
   }
 
+  removeDocument(doc: DocumentModel) {
+    const index = this.documents.indexOf(doc);
+    if (index < 0) {
+      return;
+    }
+    this.documents.splice(index, 1);
+  }
+
   /**
    * 分字段设置储存数据，不记录操作记录
    */