Automated User Account Deprovisioning Synced with TACACS+

NetBrain currently creates user accounts automatically upon first successful TACACS+ login, but it provides no corresponding mechanism to remove or deactivate those accounts when the associated user is deleted from TACACS+. Administrators must identify and remove unused accounts manually. This enhancement would introduce a scheduled process that checks NetBrain user accounts against TACACS+ to confirm continued existence, and automatically deactivates or removes accounts that are no longer present after a configurable inactivity period. This would reduce the administrative burden of manual account audits and lower the security risk associated with orphaned or stale user accounts.