Remember list filters

DiunaBI.UI.Shared/Extensions/ServiceCollectionExtensions.cs

@@ -39,6 +39,10 @@ public static class ServiceCollectionExtensions
         services.AddScoped<LayerService>();
         services.AddScoped<DataInboxService>();
 
+        // Filter state services (scoped to maintain state during user session)
+        services.AddScoped<LayerFilterStateService>();
+        services.AddScoped<DataInboxFilterStateService>();
+
         return services;
     }
 }