Add Release build step to package-validation job in GitHub Actions workflow

Author: jongalloway

.github/workflows/build.yml

@@ -139,7 +139,6 @@ jobs:
         else
           echo "✅ No vulnerable packages found."
         fi
-
   package-validation:
     runs-on: ubuntu-latest
     needs: build
@@ -158,6 +157,9 @@ jobs:
     - name: Restore dependencies
       run: dotnet restore
 
+    - name: Build (Release) for packaging
+      run: dotnet build src/NLWebNet --configuration Release --no-restore --verbosity minimal
+
     - name: Pack NuGet package
       run: dotnet pack src/NLWebNet --configuration Release --no-build --output ./packages
 

doc/todo.md

@@ -48,6 +48,7 @@ The demo application is now fully functional with a modern .NET 9 Blazor Web App
 - ✅ **Core Data Models**: Complete implementation of NLWeb protocol request/response models with validation and JSON serialization
 - ✅ **Build Fixes**: Resolved App.razor build warnings by adding proper @using directives and removing duplicate files
 - ✅ **CI/CD Testing Fix**: Updated GitHub Actions workflow to gracefully handle missing test projects and prevent build failures
+- ✅ **CI/CD Packaging Fix**: Added Release build step to package-validation job to ensure NuGet DLL is available for packaging
 
 The next phase focuses on implementing the core NLWeb library functionality.