machka-pasla
60c6e0e961
- Introduced a utility function `add_months` to handle subscription duration calculations based on calendar months instead of a fixed 30-day period. - Updated the auto-renewal logic in `PanelWebhookService` to use the new function for extending subscription end dates. - Adjusted the duration calculation in `SubscriptionService` to derive the end date after a specified number of months, improving accuracy in subscription management.