improvement: error handeling structure changed and unified all across the app. user no longer sees inappropriate messages.

frontend/src/app/[locale]/(dashboard)/today/page.tsx

@@ -4,7 +4,7 @@ import { useMemo } from 'react';
 import { useTranslations } from 'next-intl';
 import { Link } from '@/i18n/navigation';
 import { useAuth } from '@/lib/hooks/useAuth';
-import { formatApiErrorMessage } from '@/components/shared/formatApiError';
+import { getUserFacingError } from '@/components/shared/formatApiError';
 import { TodayDashboard } from '@/components/today/TodayDashboard';
 import { TodayLoadErrorBanner } from '@/components/today/TodayLoadErrorBanner';
 import { TodaySectionErrorFallback } from '@/components/today/TodaySectionErrorFallback';
@@ -13,6 +13,7 @@ import { useTodaySummary } from '@/lib/hooks/useTodaySummary';
 
 export default function TodayPage() {
   const t = useTranslations('today');
+  const tErrors = useTranslations('errors');
   const { currentOrganization } = useAuth();
   const orgId = currentOrganization?.id;
   const { data, loading, isInitialLoad, error, reload } = useTodaySummary(orgId);
@@ -54,7 +55,7 @@ export default function TodayPage() {
 
       {error ? (
         <TodayLoadErrorBanner
-          message={formatApiErrorMessage(error, t('loadError'))}
+          message={getUserFacingError(error, tErrors, t('loadError'))}
           retryLabel={t('retryLoad')}
           onRetry={() => void reload()}
           isRetrying={loading && Boolean(data)}