- Added MaxIpLimit to roles, allowing for the configuration of simultaneous IP limits for users. - Updated role creation and update commands to include MaxIpLimit, ensuring proper handling in the application logic. - Enhanced user management by introducing a DELETE endpoint for user accounts, with appropriate checks to prevent self-deletion. - Updated documentation to reflect changes in role and user management, clarifying the new IP limit functionality and user deletion process. - Adjusted related tests to cover new functionality and ensure robust validation of role and user management features.