v0.2.1

What's New

CI, coverage, and documentation improvements. No functional changes to the gem.

• Add CI workflow (Ruby 3.2–4.0), linting, and Sorbet type checking
• Add Codecov coverage reporting (99.56% line, 98.68% branch)
• Add SimpleCov with 95% minimum coverage enforcement
• Add comprehensive README with badges, API reference, and capability tables
• Add GitHub Actions gem release via trusted publishing

Full Changelog: https://github.com/SorcerousMachine/LLMCapabilities/blob/main/CHANGELOG.md