feat: Add root path redirect to Hangfire dashboard

- Map root path (/) to redirect to /hangfire dashboard
- Improves user experience by providing direct access to main dashboard
- Users accessing the application root will be automatically redirected to Hangfire

ECMJobRunner.WebCron/Program.cs

@@ -138,6 +138,9 @@ app.UseSerilogUi();
 
 app.MapControllers();
 
+// Redirect root path to Hangfire dashboard
+app.MapGet("/", () => Results.Redirect("/hangfire"));
+
 app.Run();
 }
 catch (Exception ex)