feat: display user promo group badge on dashboard

src/pages/Dashboard.tsx

@@ -15,6 +15,7 @@ import SubscriptionCardExpired from '../components/dashboard/SubscriptionCardExp
 import TrialOfferCard from '../components/dashboard/TrialOfferCard';
 import StatsGrid from '../components/dashboard/StatsGrid';
 import { giftApi } from '../api/gift';
+import { promoApi } from '../api/promo';
 import PendingGiftCard from '../components/dashboard/PendingGiftCard';
 import { API } from '../config/constants';
 
@@ -89,6 +90,13 @@ export default function Dashboard() {
     retry: false,
   });
 
+  const { data: promoGroupData } = useQuery({
+    queryKey: ['promo-group-discounts'],
+    queryFn: promoApi.getGroupDiscounts,
+    staleTime: 60_000,
+    retry: false,
+  });
+
   const activateTrialMutation = useMutation({
     mutationFn: subscriptionApi.activateTrial,
     onSuccess: () => {
@@ -227,7 +235,30 @@ export default function Dashboard() {
         <h1 className="text-2xl font-bold text-dark-50 sm:text-3xl">
           {t('dashboard.welcome', { name: user?.first_name || user?.username || '' })}
         </h1>
-        <p className="mt-1 text-dark-400">{t('dashboard.yourSubscription')}</p>
+        <div className="mt-1 flex items-center gap-2">
+          <p className="text-dark-400">{t('dashboard.yourSubscription')}</p>
+          {promoGroupData?.group_name && (
+            <span
+              className="inline-flex items-center gap-1 rounded-full px-2.5 py-0.5 text-[11px] font-semibold"
+              style={{
+                background: 'rgba(var(--color-accent-400), 0.1)',
+                border: '1px solid rgba(var(--color-accent-400), 0.2)',
+                color: 'rgb(var(--color-accent-400))',
+              }}
+            >
+              <svg
+                width="10"
+                height="10"
+                viewBox="0 0 24 24"
+                fill="currentColor"
+                aria-hidden="true"
+              >
+                <path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z" />
+              </svg>
+              {promoGroupData.group_name}
+            </span>
+          )}
+        </div>
       </div>
 
       {/* Pending Gift Activations */}