Validate packaging layout and Roslyn variant contents

[atifaziz]

Objective

Confirm generated NuGet package includes baseline and Roslyn 4.4 analyzer artifacts in the expected paths and that guard behavior is correct.

Scope

• Execute verification commands and inspect package layout.
• Validate guard target behavior for incomplete build scenarios.
• Record evidence for release confidence.

Files

• No mandatory source changes expected.
• Optional: add/update internal verification notes if project maintains them.

Tasks

• Run baseline regression check: dotnet build at repo root.
• Validate guard behavior:
  • Run dotnet pack src/DocoptNet/DocoptNet.csproj without Roslyn 4.4 build output.
  • Confirm expected failure message references build.ps1 -Pack guidance.
• Produce package via scripted workflow:
  • dotnet pwsh ./build.ps1 -Pack
• Inspect generated .nupkg and confirm presence of:
  • lib/netstandard2.0/DocoptNet.dll
  • lib/netstandard2.1/DocoptNet.dll
  • lib/net47/DocoptNet.dll
  • analyzers/dotnet/cs/DocoptNet.dll
  • analyzers/dotnet/roslyn4.4/cs/DocoptNet.dll
  • build/netstandard2.0/docopt.net.targets
• Run package integrity check (dotnet nuget verify or equivalent inspection).

Acceptance Criteria

• Guard fails when expected and blocks incomplete package generation.
• Scripted pack generates package in dist/ with all required payloads.
• Evidence is captured in issue comments/checklist completion.

Dependencies

• Add RoslynVersion configuration in project #207
• Add build.ps1 for multi-Roslyn Build/Test/Pack orchestration #208
• Wire CI workflow to build.ps1 across OS matrix #209

[atifaziz]

Closed via PR #214.