feat: implement subscription management and billing enhancements

bot/keyboards/client.py

@@ -54,6 +54,20 @@ deposit_kb: InlineKeyboardMarkup = InlineKeyboardBuilder(
 ).as_markup()
 
 
+def subscription_controls(current_autorenewal_status: bool) -> InlineKeyboardMarkup:
+    autorenewal_text = (
+        "🟢 Включить автопродление"
+        if not current_autorenewal_status
+        else "🔴 Отключить автопродление"
+    )
+    return InlineKeyboardBuilder(
+        [
+            [InlineKeyboardButton(text=autorenewal_text, callback_data="toggle:autorenewal")],
+            [_return_to_menu_btn],
+        ]
+    ).as_markup()
+
+
 def _return_btn(data: str = "menu:main", text: str = "⬅️ Назад") -> InlineKeyboardButton:
     return InlineKeyboardButton(text=text, callback_data=data)