- 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.
- Updated ListSelectableRolesQueryHandler to include IIdentityService and ICurrentUser for user authorization and profile retrieval.
- Added logic to filter out the current user's role and admin roles from the selectable roles list.
- Enhanced CreateRoleRequestDialog to display role options with additional information, including max configs and IP limits, using localization support.
- Updated i18n resources to include new role option formatting for both Russian and English.
Leonid Pershin