fix and update

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

@@ -34,7 +34,9 @@ import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
 
 import type { AuthTokens, LoginMethod, OtpChannel, OtpSendResponse } from '@/lib/api';
 
-import { createQrLoginSession, pollQrLoginSession } from '@/lib/api';
+import { createQrLoginSession, fetchFedcmSessionStatus, pollQrLoginSession } from '@/lib/api';
+
+import { isFedcmLoginPopup } from '@/lib/fedcm-login-bridge';
 
 import {
   clearOtpResendAvailableAt,
@@ -104,7 +106,7 @@ export default function LoginPage() {
 
   const { showToast } = useToast();
 
-  const { ldapEnabled, ldapUseLdaps } = usePublicSettings();
+  const { ldapEnabled, ldapUseLdaps, publicApiUrl } = usePublicSettings();
 
 
 
@@ -261,6 +263,22 @@ export default function LoginPage() {
 
 
 
+  useEffect(() => {
+    if (!isFedcmLoginPopup()) return;
+    let cancelled = false;
+
+    void (async () => {
+      const status = await fetchFedcmSessionStatus(publicApiUrl);
+      if (cancelled || !status?.active || !status.requiresPin || !status.sessionId) return;
+      setPendingSessionId(status.sessionId);
+      setStep('pin');
+    })();
+
+    return () => {
+      cancelled = true;
+    };
+  }, [publicApiUrl]);
+
   useEffect(() => {
     if (step !== 'otp' || !recipient) return;
     const saved = readOtpResendAvailableAt(recipient);