Enhance Telegram notification system with optional link support

- Updated NotifyUserAsync method in TelegramNotifier to accept an optional linkPath parameter for dynamic URL generation.
- Modified various command handlers to utilize the new linkPath feature, providing users with relevant links in their notifications.
- Adjusted ITelegramNotifier interface documentation to reflect the changes in method signature and functionality.
- Enhanced unit tests to verify the correct invocation of the updated NotifyUserAsync method.

frontend/src/routes/support.tsx

@@ -3,7 +3,14 @@ import { useTranslation } from 'react-i18next'
 import { useRequireActivated } from '@/features/auth/guards'
 import { SupportTicketList } from '@/features/support/SupportTicketList'
 
-export const Route = createFileRoute('/support')({ component: SupportPage })
+export const Route = createFileRoute('/support')({
+  component: SupportPage,
+  // Ссылка из Telegram-уведомления об изменении статуса тикета ведёт на этот же роут с
+  // ?ticket=<id> — отдельного роута на конкретный тикет нет, он открывается диалогом поверх списка.
+  validateSearch: (search: Record<string, unknown>): { ticket?: string } => ({
+    ticket: typeof search.ticket === 'string' ? search.ticket : undefined,
+  }),
+})
 
 function SupportPage() {
   const { t } = useTranslation()