feat(pwa): Telegram login primary + code fallback + TgWaitPage

driver-pwa/frontend/src/pages/TgWaitPage.tsx

@@ -0,0 +1,23 @@
+import { useEffect } from "react";
+import { useNavigate } from "react-router-dom";
+import { usePairPoll } from "@/hooks/usePairPoll";
+import { Spinner } from "@/components/Spinner";
+
+export function TgWaitPage() {
+  const nav = useNavigate();
+  const pairSession = sessionStorage.getItem("pp-pair-session");
+  const { status } = usePairPoll(pairSession);
+
+  useEffect(() => {
+    if (status === "authenticated") { sessionStorage.removeItem("pp-pair-session"); nav("/", { replace: true }); }
+    if (status === "expired") { sessionStorage.removeItem("pp-pair-session"); nav("/login", { replace: true, state: { expired: true } }); }
+  }, [status, nav]);
+
+  return (
+    <div className="pt-16 text-center">
+      <h1 className="text-xl font-extrabold mb-2">Премиум Водитель</h1>
+      <p className="text-muted text-sm mb-8">Подтвердите номер в Telegram — нажмите «Поделиться номером», затем вернитесь сюда.</p>
+      <Spinner />
+    </div>
+  );
+}