Preserve Customized Front Server Configuration Settings Across Upgrades

NetBrain does not currently retain customized Front Server configuration settings when the platform is upgraded, causing administrators to lose prior customizations and requiring manual reapplication after each upgrade. This enhancement would ensure that Front Server configuration settings persist through the upgrade process, whether by preserving the existing configuration file or by reliably merging it with any new default settings introduced by the upgrade. Maintaining configuration continuity across upgrades would reduce post-upgrade reconfiguration effort and lower the risk of misconfiguration or service disruption after an upgrade.