feat: add Pro feature paywall and unlock overlay UI.

frontend/components/dashboard/ProFeaturePaywall.tsx

@@ -11,7 +11,10 @@ type ProFeaturePaywallProps = {
   onClose?: () => void;
 };
 
-export function ProFeaturePaywall({ feature, onClose }: ProFeaturePaywallProps) {
+export function ProFeaturePaywall({
+  feature,
+  onClose,
+}: ProFeaturePaywallProps) {
   const router = useRouter();
   const { locale } = useI18n();
   const { proAccess } = useDashboardStore();
@@ -73,6 +76,7 @@ export function ProFeaturePaywall({ feature, onClose }: ProFeaturePaywallProps)
         }}
         payLabel={payLabel}
         faqHref="/account"
+        telegramGroupUrl="https://t.me/+nMG7SjziUKYyZmM1"
       />
     </div>
   );

frontend/components/subscription/UnlockProOverlay.module.css

@@ -6,6 +6,9 @@
   max-height: calc(100dvh - 2.5rem);
   overflow-x: hidden;
   overflow-y: auto;
+  /* Hide scrollbar — all browsers */
+  scrollbar-width: none; /* Firefox */
+  -ms-overflow-style: none; /* IE / Edge legacy */
   border-radius: 28px;
   border: 1px solid rgba(255, 255, 255, 0.07);
   background: linear-gradient(160deg, #111827 0%, #0d1525 40%, #090f1c 100%);
@@ -16,6 +19,11 @@
   padding: 28px 24px 24px;
 }
 
+/* Chrome / Safari / WebKit */
+.modal::-webkit-scrollbar {
+  display: none;
+}
+
 @media (min-width: 768px) {
   .modal {
     padding: 36px 36px 28px;