- Created docs/V6_LOCAL_DEVELOPMENT.md with comprehensive guide
- Added dev:install, dev:status, dev:list, dev:uninstall npm scripts
- Updated OpenCode preservation docs with fork-only warnings
- Clarified that npx downloads published version without OpenCode
- Documented direct node execution as primary development method
This resolves the issue where npx bmad-method was downloading the
published npm package instead of using the local fork version with
OpenCode integration.