Implement auto-renew subscription feature and enhance payment method handling

- Added a recurring billing task to automatically charge users one day before subscription expiry, improving subscription management.
- Introduced a new UserBilling model to store saved payment methods for off-session charges, enhancing user experience.
- Updated YooKassa service to support saving payment methods and capturing payments for auto-renewals.
- Enhanced subscription handling to toggle auto-renew settings and provide user feedback through localized messages.
- Improved error handling and logging for payment method persistence and subscription renewal processes.

locales/en.json

@@ -371,6 +371,12 @@
   "admin_sync_not_found_in_db": "\n❌ Not found in DB: {count}",
   "admin_payments_pagination_info": "📊 Showing {shown} of {total} payments (page {current_page}/{total_pages})",
   "my_subscription_details": "🔐 <b>My Subscription</b>\n\n⏰ Status: <b>{status}</b>\n📅 Active until: <b>{end_date}</b>\n📆 Days left: <b>{days_left}</b>\n\n🔗 Configuration link:\n<code>{config_link}</code>\n\n📊 Traffic:\nLimit: <b>{traffic_limit}</b>\nUsed: <b>{traffic_used}</b>",
+  "autorenew_enable_button": "Enable auto-renew",
+  "autorenew_disable_button": "Disable auto-renew",
+  "subscription_autorenew_updated": "Auto-renew settings updated.",
+  "subscription_tribute_notice": "Paid via Tribute. Renew using your Tribute link.",
+  "subscription_tribute_notice_with_link": "Paid via Tribute. Renew: {link}",
+  "subscription_autorenew_not_supported_for_tribute": "Auto-renew is handled by Tribute. Manage renewal in the Tribute app/link.",
   "subscription_not_active": "You don't have an active subscription.",
   "error_service_unavailable": "Service unavailable. Please try again later.",
   "error_payment_gateway": "Payment service error. Please try again later.",

locales/ru.json

@@ -370,6 +370,12 @@
   "admin_sync_not_found_in_db": "\n❌ Не найдено в БД: {count}",
   "admin_payments_pagination_info": "📊 Показано {shown} из {total} платежей (стр. {current_page}/{total_pages})",
   "my_subscription_details": "🔐 <b>Моя подписка</b>\n\n⏰ Статус: <b>{status}</b>\n📅 Действует до: <b>{end_date}</b>\n📆 Осталось дней: <b>{days_left}</b>\n\n🔗 Ссылка на конфигурацию:\n<code>{config_link}</code>\n\n📊 Трафик:\nЛимит: <b>{traffic_limit}</b>\nИспользовано: <b>{traffic_used}</b>",
+  "autorenew_enable_button": "Включить автопродление",
+  "autorenew_disable_button": "Выключить автопродление",
+  "subscription_autorenew_updated": "Настройки автопродления обновлены.",
+  "subscription_tribute_notice": "Оплачено через Tribute. Продление делайте по ссылке Tribute.",
+  "subscription_tribute_notice_with_link": "Оплачено через Tribute. Продлить: {link}",
+  "subscription_autorenew_not_supported_for_tribute": "Автопродление управляется Tribute. Управляйте продлением в приложении/ссылке Tribute.",
   "subscription_not_active": "У вас нет активной подписки.",
   "error_service_unavailable": "Сервис недоступен. Попробуйте позже.",
   "error_payment_gateway": "Ошибка платежного сервиса. Попробуйте позже.",