Leonid Pershin
b2ae358250
- Introduced billing capabilities, allowing users to request payments for subscription periods (3/6/12 months) with admin approval via Telegram. - Updated role management to include a `BillingEnabled` property, preventing billing for admin roles. - Enhanced the `CreateRoleCommand` and `UpdateRoleCommand` to accept billing parameters, ensuring proper handling during role creation and updates. - Added new endpoints for billing management and integrated billing checks into VPN config creation to enforce payment requirements. - Updated related services, models, and tests to support the new billing features, ensuring comprehensive coverage and functionality. - Enhanced documentation to reflect the new billing processes and role management changes.