Agent Skills: lisa-parity-skill-creator

Author a new Lisa skill end-to-end — scaffold the SKILL.md frontmatter (name/description/allowed-tools), write the pass-through command, follow hyphen naming, place files under plugins/src/base, and rebuild plugins. Lisa-native reimplementation of the upstream skill-creator plugin. NO drift pin: upstream publishes no semver, so it is not drift-trackable.