Connectivity Test Tool and Enhanced Logging for System Update Process

NetBrain does not currently provide a way to verify network connectivity and service health across all servers before or during a System Update, requiring administrators to manually check each server individually, which becomes impractical in environments with many servers. Update failure logs also do not clearly identify the root cause when a required connection or service check fails. This enhancement would add a connectivity and service health test feature, accessible from the Server Monitor or System Update page, that checks required connections and service status across all servers and displays the results directly in the UI. Update failure logs would also be enhanced to surface root causes more clearly. This would reduce manual troubleshooting effort and help administrators identify and resolve update issues faster, particularly in larger multi-server environments.