Move NuGet readme property back to Directory.Build.props

Author: KSemenenko

ClaudeCodeSharpSDK.Extensions.AI/ClaudeCodeSharpSDK.Extensions.AI.csproj

@@ -2,7 +2,6 @@
   <PropertyGroup>
     <Description>.NET Microsoft.Extensions.AI adapter for ClaudeCodeSharpSDK, providing IChatClient integration.</Description>
     <PackageId>ManagedCode.ClaudeCodeSharpSDK.Extensions.AI</PackageId>
-    <PackageReadmeFile>README.md</PackageReadmeFile>
     <RootNamespace>ManagedCode.ClaudeCodeSharpSDK.Extensions.AI</RootNamespace>
     <AssemblyName>ManagedCode.ClaudeCodeSharpSDK.Extensions.AI</AssemblyName>
     <PackageTags>claude;anthropic;sdk;ai;agent;cli;microsoft-extensions-ai;ichatclient</PackageTags>

ClaudeCodeSharpSDK/ClaudeCodeSharpSDK.csproj

@@ -2,7 +2,6 @@
   <PropertyGroup>
     <Description>.NET SDK for the Anthropic Claude Code CLI with streaming thread events.</Description>
     <PackageId>ManagedCode.ClaudeCodeSharpSDK</PackageId>
-    <PackageReadmeFile>README.md</PackageReadmeFile>
     <RootNamespace>ManagedCode.ClaudeCodeSharpSDK</RootNamespace>
     <AssemblyName>ManagedCode.ClaudeCodeSharpSDK</AssemblyName>
     <PackageTags>claude;anthropic;sdk;ai;agent;cli</PackageTags>

Directory.Build.props

@@ -26,6 +26,7 @@
     <RepositoryUrl>https://github.com/managedcode/ClaudeCodeSharpSDK</RepositoryUrl>
     <PackageProjectUrl>https://github.com/managedcode/ClaudeCodeSharpSDK</PackageProjectUrl>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
     <EnablePackageValidation>true</EnablePackageValidation>