Use auto-clone feature of the fusion cache to prevent further scale out issues when swtiching to redis (#11759)

src/Templates/Boilerplate/Bit.Boilerplate/.github/copilot-instructions.md

@@ -60,6 +60,7 @@ The solution is organized into the following projects. Understand their roles to
 
 -   **DeepWiki**: Provides access to an extensive knowledge base for the `bitfoundation/bitplatform` and `riok/mapperly` repositories.
 -   **Website Fetcher**: Gathers information from URLs provided by the user, using `fetch` or `get_web_pages` tools.
+-   **Microsoft Learn**: Provides access to official Microsoft documentation and code samples for Azure, .NET Aspire, .NET MAUI, Entity Framework Core, SignalR, Microsoft.Extensions.AI, SQL Server, and other Microsoft technologies. Use `microsoft_docs_search` to find relevant documentation and `microsoft_code_sample_search` to find official code examples.
 
 ## 5. Mandatory Workflow
 

src/Templates/Boilerplate/Bit.Boilerplate/src/Directory.Packages.props

@@ -134,5 +134,6 @@
         <PackageVersion Include="Microsoft.Playwright.MSTest.v4" Version="1.56.0" />
         <PackageVersion Include="ZiggyCreatures.FusionCache.AspNetCore.OutputCaching" Version="2.4.0" />
         <PackageVersion Include="ZiggyCreatures.FusionCache.OpenTelemetry" Version="2.4.0" />
+        <PackageVersion Include="ZiggyCreatures.FusionCache.Serialization.SystemTextJson" Version="2.4.0" />
     </ItemGroup>
 </Project>

src/Templates/Boilerplate/Bit.Boilerplate/src/Server/Boilerplate.Server.Shared/Boilerplate.Server.Shared.csproj

@@ -29,8 +29,9 @@
         <PackageReference Include="OpenTelemetry.Resources.OperatingSystem" />
         <PackageReference Include="OpenTelemetry.Resources.Process" />
         <PackageReference Include="OpenTelemetry.Resources.ProcessRuntime" />
-        <PackageReference Include="ZiggyCreatures.FusionCache.AspNetCore.OutputCaching" />
         <PackageReference Include="ZiggyCreatures.FusionCache.OpenTelemetry" />
+        <PackageReference Include="ZiggyCreatures.FusionCache.AspNetCore.OutputCaching" />
+        <PackageReference Include="ZiggyCreatures.FusionCache.Serialization.SystemTextJson" />
     </ItemGroup>
 
     <ItemGroup>

src/Templates/Boilerplate/Bit.Boilerplate/src/Server/Boilerplate.Server.Shared/Extensions/WebApplicationBuilderExtensions.cs

@@ -14,6 +14,8 @@
 using OpenTelemetry.Metrics;
 using OpenTelemetry.Resources;
 using OpenTelemetry.Trace;
+using ZiggyCreatures.Caching.Fusion;
+using ZiggyCreatures.Caching.Fusion.Serialization.SystemTextJson;
 
 namespace Microsoft.Extensions.Hosting;
 
@@ -44,7 +46,10 @@ public static TBuilder AddServerSharedServices<TBuilder>(this TBuilder builder)
             }, excludeDefaultPolicy: true);
         });
 
-        services.AddFusionCache();
+        services.AddFusionCache()
+            // Auto-clone cached objects to avoid further issues after scaling out and switching to distributed caching.
+            .WithOptions(opt => opt.DefaultEntryOptions.EnableAutoClone = true)
+            .WithSerializer(new FusionCacheSystemTextJsonSerializer());
         services.AddFusionOutputCache(); // For ASP.NET Core Output Caching with FusionCache
 
         services.AddHttpContextAccessor();

src/Templates/Boilerplate/Bit.Boilerplate/src/Shared/Exceptions/KnownException.cs

@@ -1,6 +1,6 @@
-namespace Boilerplate.Shared.Exceptions;
+namespace Boilerplate.Shared.Exceptions;
 
-public abstract partial class KnownException : Exception
+public abstract partial class KnownException : ApplicationException
 {
     public KnownException(string message)
         : base(message)