Simplify package reference

Author: daxian-dbw

shell/AIShell.App/AIShell.App.csproj

@@ -12,7 +12,6 @@
 
   <ItemGroup>
     <ProjectReference Include="..\AIShell.Kernel\AIShell.Kernel.csproj" />
-    <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
     <PackageReference Include="Microsoft.PowerShell.SDK" Version="7.4.7" />
   </ItemGroup>
 

shell/AIShell.Kernel/AIShell.Kernel.csproj

@@ -6,9 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Spectre.Console" Version="0.50.0" />
     <PackageReference Include="Spectre.Console.Json" Version="0.50.0" />
-    <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
     <PackageReference Include="ModelContextProtocol.Core" Version="0.2.0-preview.3" />
   </ItemGroup>