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/TicketFormView.vue

@@ -3,6 +3,7 @@ import { computed, onMounted, ref, watch } from 'vue';
 import { RouterLink, useRoute, useRouter } from 'vue-router';
 import axios from 'axios';
 import { api } from '@/lib/api';
+import { formatJalaliDateTime } from '@/lib/jalali';
 import { canViewAllRecords } from '@/lib/roles';
 import { useAuthStore } from '@/stores/auth';
 import {
@@ -84,14 +85,9 @@ const priorityLabel: Record<TicketPriority, 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 loadFaqHints() {