feat(vscode-ide-companion): import chat chat customEditor to vscode extension folder

packages/vscode-ide-companion/src/webview/hooks/useVSCode.ts

@@ -0,0 +1,34 @@
+/**
+ * @license
+ * Copyright 2025 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { useMemo } from 'react';
+
+export interface VSCodeAPI {
+  postMessage: (message: unknown) => void;
+  getState: () => unknown;
+  setState: (state: unknown) => void;
+}
+
+declare const acquireVsCodeApi: () => VSCodeAPI;
+
+export function useVSCode(): VSCodeAPI {
+  return useMemo(() => {
+    if (typeof acquireVsCodeApi !== 'undefined') {
+      return acquireVsCodeApi();
+    }
+
+    // Fallback for development/testing
+    return {
+      postMessage: (message: unknown) => {
+        console.log('Mock postMessage:', message);
+      },
+      getState: () => ({}),
+      setState: (state: unknown) => {
+        console.log('Mock setState:', state);
+      },
+    };
+  }, []);
+}