Add NamespaceDoc for DemaConsulting.TestResults and IO namespaces

[Copilot]

Pull Request

Description

Adds NamespaceDoc classes to the DemaConsulting.TestResults and DemaConsulting.TestResults.IO namespaces so ApiMark generates rich namespace-level pages in the packaged API documentation. Both files are documentation scaffolding (internal static class NamespaceDoc) rather than software items, so they are tracked in the Purpose review-set rather than any unit-level review-set.

• src/DemaConsulting.TestResults/NamespaceDoc.cs — covers the two-layer model/IO architecture, all three model types (TestResults, TestResult, TestOutcome/TestOutcomeExtensions), build-and-serialize and read-and-inspect examples, default value guarantees, and thread-safety contract.
• src/DemaConsulting.TestResults/IO/NamespaceDoc.cs — covers all three serializer types (TrxSerializer, JUnitSerializer, Serializer) and TestResultFormat, guidance on when to use each serializer, examples for auto-detection, format identification, and explicit TRX/JUnit round-trips, JUnit round-trip loss caveats, and thread-safety contract.
• .reviewmark.yaml — both NamespaceDoc.cs files added to the Purpose review-set.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Code quality improvement

Related Issues

Pre-Submission Checklist

Build and Test

• Code builds successfully: dotnet build --configuration Release
• All unit tests pass: dotnet test --configuration Release
• Code produces zero warnings

Code Quality

• Code formatting is correct: dotnet format --verify-no-changes
• New code has appropriate XML documentation comments
• Static analyzer warnings have been addressed

Quality Checks

• All linters pass: ./lint.sh (Unix/macOS) or cmd /c lint.bat / ./lint.bat (Windows)

Testing

• Added unit tests for new functionality
• Updated existing tests if behavior changed
• All tests follow the AAA (Arrange, Act, Assert) pattern
• Test coverage is maintained or improved

Documentation

• Updated README.md (if applicable)
• Updated ARCHITECTURE.md (if applicable)
• Added code examples for new features (if applicable)
• Updated requirements.yaml (if applicable)

Additional Notes

NamespaceDoc is a documentation-only convention; the class body is empty and the type is internal, so it has no effect on the public API surface.

[Copilot]

Pull request overview

This PR adds NamespaceDoc scaffolding types so ApiMark can generate namespace-level API documentation pages for the core DemaConsulting.TestResults namespace and the DemaConsulting.TestResults.IO namespace, and updates ReviewMark to include these files in the Purpose review-set.

Changes:

• Added NamespaceDoc for DemaConsulting.TestResults with model/IO architecture description, usage examples, and behavioral contracts.
• Added NamespaceDoc for DemaConsulting.TestResults.IO documenting the serializers, format detection, examples, and known JUnit round-trip limitations.
• Updated .reviewmark.yaml to include both NamespaceDoc.cs files in the Purpose review-set.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/DemaConsulting.TestResults/NamespaceDoc.cs	Adds namespace-level XML docs and examples for the in-memory model layer and its usage/contracts.
src/DemaConsulting.TestResults/IO/NamespaceDoc.cs	Adds namespace-level XML docs and examples for TRX/JUnit serializers and format detection behavior.
.reviewmark.yaml	Tracks the new documentation-only NamespaceDoc files under the Purpose review-set.

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