更新版本号至0.2.1

将`Directory.Build.props`和`server.json`中的版本号从0.2.0更新为0.2.1，以确保项目的版本一致性。

Author: xuzeyu91

Directory.Build.props

@@ -1,6 +1,6 @@
 <Project>
   <!-- See https://aka.ms/dotnet/msbuild/customize for more details on customizing your build -->
   <PropertyGroup>
-    <Version>0.2.0</Version>
+    <Version>0.2.1</Version>
   </PropertyGroup> 
 </Project>

src/Windows-MCP.Net/.mcp/server.json

@@ -6,7 +6,7 @@
     {
       "registry_name": "nuget",
       "name": "WindowsMCP.Net",
-      "version": "0.2.0",
+      "version": "0.2.1",
       "package_arguments": [],
       "environment_variables": []
     }
@@ -16,6 +16,6 @@
     "source": "github"
   },
   "version_detail": {
-    "version": "0.2.0"
+    "version": "0.2.1"
   }
 }

src/Windows-MCP.Net/Windows-MCP.Net.csproj

@@ -22,7 +22,7 @@
   <!-- Include additional files for browsing the MCP server. -->
   <ItemGroup>
     <None Include=".mcp\server.json" Pack="true" PackagePath="/.mcp/" />
-    <None Include="..\README.md" Pack="true" PackagePath="/" />
+    <None Include="..\..\README.md" Pack="true" PackagePath="/" />
   </ItemGroup>
 
   <ItemGroup>