feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/workflow/variable/src/components/private-scope-provider/index.tsx

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+import React, { useMemo, type ReactElement } from 'react';
+
+import {
+  FlowNodeVariableData,
+  type Scope,
+  ScopeProvider,
+} from '@flowgram-adapter/free-layout-editor';
+import { useEntityFromContext } from '@flowgram-adapter/free-layout-editor';
+
+interface VariableProviderProps {
+  children: ReactElement | ReactElement[];
+}
+
+export const PrivateScopeProvider = ({ children }: VariableProviderProps) => {
+  const node = useEntityFromContext();
+
+  const privateScope: Scope = useMemo(() => {
+    const variableData: FlowNodeVariableData =
+      node.getData(FlowNodeVariableData);
+    if (!variableData.private) {
+      variableData.initPrivate();
+    }
+    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+    return variableData.private!;
+  }, [node]);
+
+  return (
+    <ScopeProvider value={{ scope: privateScope }}>{children}</ScopeProvider>
+  );
+};