Use `IHasExtraProperties` to replace `ExtensibleObject`.

framework/src/Volo.Abp.AspNetCore.Mvc.Contracts/Volo/Abp/AspNetCore/Mvc/ApplicationConfigurations/ApplicationConfigurationDto.cs

@@ -1,12 +1,12 @@
 using System;
 using Volo.Abp.AspNetCore.Mvc.ApplicationConfigurations.ObjectExtending;
 using Volo.Abp.AspNetCore.Mvc.MultiTenancy;
-using Volo.Abp.ObjectExtending;
+using Volo.Abp.Data;
 
 namespace Volo.Abp.AspNetCore.Mvc.ApplicationConfigurations;
 
 [Serializable]
-public class ApplicationConfigurationDto : ExtensibleObject
+public class ApplicationConfigurationDto : IHasExtraProperties
 {
     public ApplicationLocalizationConfigurationDto Localization { get; set; }
 
@@ -29,4 +29,6 @@ public class ApplicationConfigurationDto : ExtensibleObject
     public ClockDto Clock { get; set; }
 
     public ObjectExtensionsDto ObjectExtensions { get; set; }
+
+    public ExtraPropertyDictionary ExtraProperties { get; set; }
 }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ApplicationConfigurations/AbpApplicationConfigurationAppService.cs

@@ -13,6 +13,7 @@ using Volo.Abp.AspNetCore.Mvc.ApplicationConfigurations.ObjectExtending;
 using Volo.Abp.AspNetCore.Mvc.MultiTenancy;
 using Volo.Abp.Authorization;
 using Volo.Abp.Authorization.Permissions;
+using Volo.Abp.Data;
 using Volo.Abp.Features;
 using Volo.Abp.GlobalFeatures;
 using Volo.Abp.Localization;
@@ -99,7 +100,8 @@ public class AbpApplicationConfigurationAppService : ApplicationService, IAbpApp
             CurrentTenant = GetCurrentTenant(),
             Timing = await GetTimingConfigAsync(),
             Clock = GetClockConfig(),
-            ObjectExtensions = _cachedObjectExtensionsDtoService.Get()
+            ObjectExtensions = _cachedObjectExtensionsDtoService.Get(),
+            ExtraProperties = new ExtraPropertyDictionary()
         };
 
         if (_options.Contributors.Any())