fix: keep birthdays and show Shamsi dates

Imported customers keep their birthday, and assistant text plus remaining calendars use the Jalali date.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/views/PortalView.vue

@@ -16,6 +16,7 @@ import type {
   PortalTicketDto,
 } from '@mento/shared';
 import { brand } from '@mento/shared';
+import { formatJalaliDateTime } from '@/lib/jalali';
 
 const route = useRoute();
 const router = useRouter();
@@ -54,14 +55,9 @@ const statusLabel: Record<string, string> = {
 };
 
 function formatWhen(iso: string) {
-  try {
-    return new Intl.DateTimeFormat('fa-IR', {
-      dateStyle: 'medium',
-      timeStyle: 'short',
-    }).format(new Date(iso));
-  } catch {
-    return iso;
-  }
+  const d = new Date(iso);
+  if (Number.isNaN(d.getTime())) return iso;
+  return formatJalaliDateTime(d);
 }
 
 async function loadOrg() {