audit(v3.0.1): comprehensive professional audit and version alignment

chore(release): bump version to 3.0.1 and harden CI rules

fix(ci): fix coverage artifact upload paths

fix(ci): remove unused type ignore for yaml import

fix(ci): add PyYAML to test dependencies

fix(ci): format src/ files to pass ruff format check

fix(ci): add src/ to git tracking — was excluded by .gitignore

fix(ci): update workflow to target src/ package instead of deleted monolith

chore: prepare v3.0.0 release with definitive docs, plugin ecosystem, and type safety

removed

updated

linting fix

updates

updates

linting fix