Summary

This PR expands benchmark coverage for ModularityKit.Mutator by adding the results materialization benchmark suite, then hardens the docs publishing workflow with a retry for GitHub Pages deployment.

Highlights

Results benchmarks

• Add dedicated results benchmarks under Benchmarks/Results.
• Measure MutationResult creation with no side effects, single side effect, and multiple side effects.
• Measure history and audit output materialization from executed mutation results.
• Keep result benchmark helpers local to the benchmark project.

Docs publishing workflow

• Allow the current Node runtime behavior for Pages actions.
• Retry actions/deploy-pages@v4 once when the first deployment status check fails.
• Keep the docs build step unchanged while making deployment less brittle.

Why

Issue #60 asks for benchmark visibility into result-building costs, side effect materialization, and history or audit output materialization.

The docs workflow update addresses a transient GitHub Pages deployment failure where the docs build succeeded but the deployment status check failed.

Checks

• dotnet build Benchmarks/ModularityKit.Mutator.Benchmarks.csproj -c Release
• Local BenchmarkDotNet runs for MutationResultCreationBenchmarks and MutationOutputMaterializationBenchmarks
• Verified the docs build job in GitHub Actions completed successfully and isolated the failure to the deployment step

Closes

• Closes [Benchmark]: Measure side effect and result materialization #60
• Closes [Task]: Expand core benchmark coverage #55