feat: 添加工作区页面及相关状态管理，优化路由配置

src/routes/workspaces/index.tsx

@@ -0,0 +1,9 @@
+import { createFileRoute } from '@tanstack/react-router'
+import App from '@/pages/workspaces/page'
+export const Route = createFileRoute('/workspaces/')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  return <App />
+}