padhle - post migration

frontend/src/main.jsx

@@ -4,6 +4,7 @@
 
 import React from "react";
 import ReactDOM from "react-dom/client";
+import { BrowserRouter, Routes, Route } from "react-router-dom";
 import App from "./App.jsx";
 import { AuthProvider } from "./lib/auth/SupabaseAuth.jsx";
 import "./styles/global.css";
@@ -11,7 +12,16 @@ import "./styles/global.css";
 ReactDOM.createRoot(document.getElementById("root")).render(
   <React.StrictMode>
     <AuthProvider>
-      <App />
+      <BrowserRouter>
+        <Routes>
+          {/* Both paths render the same App shell; the chat id is read via
+              useParams() to support deep links like /chat/:chatId. A catch-all
+              keeps unknown paths on the app (Vite SPA fallback serves index.html). */}
+          <Route path="/" element={<App />} />
+          <Route path="/chat/:chatId" element={<App />} />
+          <Route path="*" element={<App />} />
+        </Routes>
+      </BrowserRouter>
     </AuthProvider>
   </React.StrictMode>
 );