fix: (subscriptions) show message when no regions are available for subscription

Improved the "Subscribe" button behavior. Now, if there are no regions available to subscribe to, the user sees a proper message instead of silent failure.

Signed-off-by: UdoChudo <stream@udochudo.ru>

app/bot/handlers/subscribe.py

@@ -4,6 +4,7 @@ from telebot.types import Message, InlineKeyboardMarkup, InlineKeyboardButton, C
 
 from app import Subscriptions
 from app.bot.constants import UserStates
+from app.bot.keyboards.settings_menu import get_settings_menu
 from app.bot.processors.subscribe_processor import process_subscription_button, process_subscribe_all_regions
 from app.bot.states import UserStateManager
 from app.bot.utils.auth import auth
@@ -28,10 +29,16 @@ def register_handlers(bot: TeleBot, app, state_manager: UserStateManager):
             # Получаем регионы
             regions = get_sorted_regions()
 
+            if not regions:
+                bot.send_message(chat_id, "ℹ️ У вас нет доступных для подписки регионов.",reply_markup=get_settings_menu())
+                state_manager.set_state(chat_id, UserStates.SETTINGS_MENU)
+                return
+
             # Получаем список подписанных регионов пользователя
             subscribed = {s.region_id for s in Subscriptions.query.filter_by(chat_id=chat_id, active=True).all()}
 
 
+
             # Формируем строку с пометками
             regions_text = format_regions_list_marked(regions, subscribed)