fix and update

apps/frontend/app/auth/login/page.tsx

@@ -83,6 +83,12 @@ export default function LoginPage() {
   const router = useRouter();
 
   const finishLoginRedirect = useCallback(() => {
+    if (typeof window !== 'undefined') {
+      const fedcmLoginApi = (navigator as Navigator & { login?: { setStatus?: (status: string) => void } }).login;
+      if (window.opener && typeof fedcmLoginApi?.setStatus === 'function') {
+        return;
+      }
+    }
     const redirectAfterLogin =
       typeof window !== 'undefined' ? new URLSearchParams(window.location.search).get('redirect') : null;
     if (redirectAfterLogin && redirectAfterLogin.startsWith('/')) {

apps/frontend/components/id/auth-provider.tsx

@@ -33,6 +33,7 @@ import {
   subscribeApiReady,
   subscribeApiNotReady,
 } from '@/lib/api';
+import { finalizeFedcmLogin, shouldFinalizeFedcmLogin } from '@/lib/fedcm-login-bridge';
 import { useToast } from './toast-provider';
 import { PinLockModal } from './pin-lock-modal';
 import { AppBootstrapScreen } from './app-bootstrap-screen';
@@ -254,7 +255,11 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
         });
 
       if (auth.pinVerified !== false) {
-        scheduleFedcmSessionSync(auth.accessToken, 8000);
+        if (typeof window !== 'undefined' && shouldFinalizeFedcmLogin(window.location.pathname)) {
+          void finalizeFedcmLogin(auth.accessToken);
+        } else {
+          scheduleFedcmSessionSync(auth.accessToken, 8000);
+        }
       }
     },
     [activatePinLock, clearPinLock, showToast]

apps/frontend/lib/fedcm-login-bridge.ts

@@ -0,0 +1,47 @@
+import { syncFedcmSession } from '@/lib/api';
+
+type FedcmLoginNavigator = Navigator & {
+  login?: {
+    setStatus: (status: 'logged-in' | 'logged-out') => void;
+  };
+};
+
+type FedcmIdentityProviderGlobal = {
+  close?: () => void;
+};
+
+declare global {
+  interface Window {
+    IdentityProvider?: FedcmIdentityProviderGlobal;
+  }
+}
+
+/** Завершение входа в popup FedCM: cookie + Set-Login для браузера. */
+export async function finalizeFedcmLogin(accessToken: string) {
+  if (typeof window === 'undefined' || !accessToken) {
+    return;
+  }
+
+  await syncFedcmSession(accessToken);
+
+  const loginApi = (navigator as FedcmLoginNavigator).login;
+  if (loginApi?.setStatus) {
+    try {
+      loginApi.setStatus('logged-in');
+    } catch {
+      // FedCM API может быть недоступен вне popup-контекста
+    }
+  }
+
+  if (window.IdentityProvider?.close) {
+    try {
+      window.IdentityProvider.close();
+    } catch {
+      // закрытие необязательно — браузер сам закроет popup после setStatus
+    }
+  }
+}
+
+export function shouldFinalizeFedcmLogin(pathname: string) {
+  return pathname.startsWith('/auth/login');
+}