feat(web): auth context, login page, route guards, toast/error shell

web/src/main.tsx

@@ -1,5 +1,14 @@
+import { QueryClientProvider } from "@tanstack/react-query";
+import { BrowserRouter } from "react-router-dom";
 import { createRoot } from "react-dom/client";
 import App from "./App";
+import { queryClient } from "./lib/qc";
 import "./index.css";
 
-createRoot(document.getElementById("root")!).render(<App />);
+createRoot(document.getElementById("root")!).render(
+  <QueryClientProvider client={queryClient}>
+    <BrowserRouter>
+      <App />
+    </BrowserRouter>
+  </QueryClientProvider>,
+);