- Updated `ListUsersQueryHandler` to include plan names and config quotas in `UserSummaryDto`, enriching user data retrieval. - Implemented `WithPlanNamesAsync` method to fetch plan names based on user plan IDs, improving user experience in the admin interface. - Enhanced `Node` class with a `ConsecutiveProbeFailures` property for better status management during health checks. - Modified `NodeHealthCheckService` to utilize the new `RecordProbe` method, implementing a hysteresis mechanism for node status changes. - Updated frontend components to display user config quotas and plan names, improving clarity in user management. - Enhanced tests for user listing and node status handling to ensure robust functionality and coverage. - Updated documentation to reflect changes in user and node management features.