qr login with telegram

src/app/models/auth.model.ts

@@ -17,4 +17,9 @@ export interface TelegramAuthData {
   hash: string;
 }
 
+export interface QrPollResponse {
+  status: 'pending' | 'confirmed' | 'expired';
+  session?: AuthSession;
+}
+
 export type AuthStatus = 'unknown' | 'checking' | 'authenticated' | 'expired' | 'unauthenticated';