v0.2.0

What's new

• Plugin manifest and marketplace config (.claude-plugin/)
• Templates extracted to assets/ (article, index entry, log entry, contract, save article)
• README restructured: install instructions, centered header, badges, TOC, diagrams, companion skills
• Edge case handling: lint init guard, compile empty bail
• GitHub templates for issues and PRs
• LICENSE (MIT) and CONTRIBUTING.md
• Banner