Add TG banner

frontend/src/pages/MarathonPage.tsx

@@ -16,6 +16,7 @@ import {
 } from 'lucide-react'
 import { format } from 'date-fns'
 import { ru } from 'date-fns/locale'
+import { TelegramBotBanner } from '@/components/TelegramBotBanner'
 
 export function MarathonPage() {
   const { id } = useParams<{ id: string }>()
@@ -316,6 +317,9 @@ export function MarathonPage() {
             />
           </div>
 
+          {/* Telegram Bot Banner */}
+          <TelegramBotBanner />
+
           {/* Active event banner */}
           {marathon.status === 'active' && activeEvent?.event && (
             <EventBanner activeEvent={activeEvent} onRefresh={refreshEvent} />