Simplified option registration / Fixed Nullable property casing.

Author: eben-roux

Shuttle.Core.TransactionScope/ServiceCollectionExtensions.cs

@@ -1,5 +1,6 @@
 using System;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using Shuttle.Core.Contract;
 
 namespace Shuttle.Core.TransactionScope;
@@ -14,12 +15,7 @@ public static IServiceCollection AddTransactionScope(this IServiceCollection ser
 
         builder?.Invoke(transactionScopeBuilder);
 
-        services.AddOptions<TransactionScopeOptions>().Configure(options =>
-        {
-            options.IsolationLevel = transactionScopeBuilder.Options.IsolationLevel;
-            options.Timeout = transactionScopeBuilder.Options.Timeout;
-            options.Enabled = transactionScopeBuilder.Options.Enabled;
-        });
+        services.AddSingleton(Options.Create(transactionScopeBuilder.Options));
 
         if (services.Contains(ServiceDescriptor.Singleton<ITransactionScopeFactory, TransactionScopeFactory>()))
         {

Shuttle.Core.TransactionScope/Shuttle.Core.TransactionScope.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
-    <nullable>enable</nullable>
+    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>