feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/workflow/adapter/nodes/src/demo/index.module.less

@@ -0,0 +1,3 @@
+.foo {
+  font-size: 24px;
+}

frontend/packages/workflow/adapter/nodes/src/demo/index.tsx

@@ -0,0 +1,47 @@
+/*
+ * 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, { useState } from 'react';
+
+import classNames from 'classnames';
+
+import PngDemo from '../assets/rspack.png';
+import SVGDemo, { ReactComponent as SVGComponent } from '../assets/react.svg';
+
+import s from './index.module.less';
+
+export function DemoComponent(props: { name: string }): JSX.Element {
+  const [foo] = useState('hello world');
+  const { name } = props;
+  return (
+    // font-bold 来自 taiwindcss
+    // 建议优先使用 taiwindcss
+    <div className={classNames(s.foo, 'font-bold')}>
+      {foo} {name}!
+      <div>
+        <div>
+          SVG: <img src={SVGDemo} />
+        </div>
+        <div>
+          SVG Icon: <SVGComponent />
+        </div>
+        <div>
+          PNG: <img src={PngDemo} width={100} />
+        </div>
+      </div>
+    </div>
+  );
+}