feat: initialize zhixing-web with React, React Router, and Tailwind CSS

- Set up the main application structure with App component and routing.
- Implemented global state management for UI theme using Zustand.
- Created API utilities for fetching system status.
- Developed system status page with responsive design and theme toggle.
- Added testing setup with Vitest and initial tests for system status page.
- Configured TypeScript with appropriate settings for the application.
- Integrated Tailwind CSS for styling and responsive design.
- Established Vite configuration for development and testing environments.

zhixing-web/src/routes/route-tree.tsx

@@ -0,0 +1,15 @@
+import { createRootRoute, createRoute, Outlet } from "@tanstack/react-router"
+
+import { SystemStatusPage } from "@/features/system/pages/system-status-page"
+
+const rootRoute = createRootRoute({
+  component: () => <Outlet />,
+})
+
+const indexRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  path: "/",
+  component: SystemStatusPage,
+})
+
+export const routeTree = rootRoute.addChildren([indexRoute])