- Updated `CreateRoleCommand` and `UpdateRoleCommand` to include optional pricing fields: `PricePerConfigPerQuarter` and `PricePerConfigPerYear`. - Modified `RoleEndpoints` to handle the new pricing parameters during role creation and updates. - Enhanced validation logic in `CreateRoleCommandValidator` and `UpdateRoleCommandValidator` to ensure pricing fields are non-negative when provided. - Updated `RoleDto` and `SelectableRoleDto` to include pricing information, ensuring proper data handling in API responses. - Adjusted frontend components to support new pricing fields in role forms and display total costs based on configurations. - Updated API documentation to reflect changes in role management endpoints and pricing structure.