feat: 完善会展策划演示系统

详细说明:
- 添加了V2版本的工作流页面和结果页面
- 更新了Serena记忆文件
- 添加了详细实施计划文档
- 优化了Vite配置
- 更新了项目文档CLAUDE.md
- 构建了演示系统的dist版本
- 包含了exhibition-demo的完整依赖

web_frontend/exhibition-demo/node_modules/react/cjs/react.shared-subset.development.js

@@ -0,0 +1,20 @@
+/**
+ * @license React
+ * react.shared-subset.development.js
+ *
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+if (process.env.NODE_ENV !== "production") {
+  (function() {
+'use strict';
+
+// eslint-disable-next-line react-internal/prod-error-codes
+throw new Error('This entry point is not yet supported outside of experimental channels');
+  })();
+}