feat(repo): Generate code coverage on pull requests

[vmarcella]

Summary

This pull request adds a pipeline which generates the code coverage for a branch when a pull request is created against main.

Related Issues

Changes

• Adds a new pipeline to generate the code coverage on a pull request.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• Feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation (updates to docs, specs, tutorials, or comments)
• Refactor (code change that neither fixes a bug nor adds a feature)
• Performance (change that improves performance)
• Test (adding or updating tests)
• Build/CI (changes to build process or CI configuration)

Affected Crates

• lambda-rs
• lambda-rs-platform
• lambda-rs-args
• lambda-rs-logging
• Other:

Checklist

• Code follows the repository style guidelines (cargo +nightly fmt --all)
• Code passes clippy (cargo clippy --workspace --all-targets -- -D warnings)
• Tests pass (cargo test --workspace)
• New code includes appropriate documentation
• Public API changes are documented
• Breaking changes are noted in this PR description

Testing

N/A

Screenshots/Recordings

Platform Testing

• macOS
• Windows
• Linux

Additional Notes

[github-actions]

✅ Coverage Report

📊 View Full HTML Report (download artifact)

Overall Coverage

Metric	Value
Total Line Coverage	38.29%
Lines Covered	3761 / 9822

No Rust files changed in this PR.

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Generated by cargo-llvm-cov · Latest main coverage

_{Last updated: 2026-01-31 22:02:47 UTC · Commit: 1aaa56a}

[Copilot]

Pull request overview

This PR adds a GitHub Actions workflow to generate and report code coverage for pull requests and main branch pushes using cargo-llvm-cov.

Changes:

• Adds a new workflow file .github/workflows/coverage.yml that runs on pull requests and pushes to main
• Installs necessary dependencies (Vulkan, audio libraries) and cargo-llvm-cov tooling
• Generates coverage reports in JSON format and posts results as PR comments
• Uploads coverage artifacts for retention

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