Add referral bonus configuration and enhance payment processing logic

- Introduced a new environment variable REFERRAL_ONE_BONUS_PER_REFEREE to control referral bonus application.
- Updated referral bonus application logic to skip bonuses for users with active subscriptions at the time of payment.
- Enhanced payment processing functions across multiple services to include current payment ID and skip logic for active users.
- Added a new database method to count succeeded payments for users, improving referral bonus eligibility checks.

bot/services/stars_service.py

@@ -96,7 +96,12 @@ class StarsService:
             return
 
         referral_bonus = await self.referral_service.apply_referral_bonuses_for_payment(
-            session, message.from_user.id, months)
+            session,
+            message.from_user.id,
+            months,
+            current_payment_db_id=payment_db_id,
+            skip_if_active_before_payment=True,
+        )
         await session.commit()
 
         applied_days = referral_bonus.get("referee_bonus_applied_days") if referral_bonus else None