docs: rewrite skill as action-oriented playbook, link contributing from developers (#1040)
- skill now points at existing resources (CLAUDE.md, .env.example,
docs-internal/setup.md) instead of restating their contents
- structured as a 5-step playbook: orient, fork, change, validate, PR
- add contributing link at bottom of developers page
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
authored by
zzstoatzz.io