Introduced a `/health-ui` route with a custom HTML-based health check UI, leveraging `HealthCheckService`. Added `GenerateHealthCheckHtml` to dynamically render health check results with Bootstrap styling, auto-refresh, and detailed status reporting.
Enabled Serilog self-diagnostics and integrated `app.UseSerilogUi()` for a Serilog log dashboard. Enhanced user experience with navigation links, animations, and responsive design. Improved observability and monitoring capabilities.