chore: scaffold Tauri v2 + Vite + React project structure

src/main.tsx

@@ -0,0 +1,8 @@
+import React from "react";
+import ReactDOM from "react-dom/client";
+
+ReactDOM.createRoot(document.getElementById("root")!).render(
+  <React.StrictMode>
+    <div>Loading…</div>
+  </React.StrictMode>
+);