Add Microsoft.Extensions.AI package reference

Directory.Packages.props

@@ -88,6 +88,7 @@
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.2" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.2" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.2" />
+    <PackageVersion Include="Microsoft.Extensions.AI" Version="9.4.0-preview.1.25207.5" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Hybrid" Version="9.0.0-preview.7.24406.2" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="9.0.2" />
     <PackageVersion Include="Microsoft.Extensions.Caching.StackExchangeRedis" Version="9.0.2" />

framework/src/Volo.Abp.AI/Volo.Abp.AI.csproj

@@ -19,4 +19,8 @@
         <ProjectReference Include="..\Volo.Abp.Core\Volo.Abp.Core.csproj"/>
     </ItemGroup>
 
+    <ItemGroup>
+        <PackageReference Include="Microsoft.Extensions.AI" />
+    </ItemGroup>
+
 </Project>

framework/src/Volo.Abp.AI/Volo/Abp/AI/AbpAIModule.cs

@@ -3,5 +3,6 @@
 namespace Volo.Abp.AI;
 
 public class AbpAIModule : AbpModule
-{ 
+{
+    
 }