Introduce repo-level guidance for AI agents:
- CLAUDE.md: single source of truth (structure, design rules, versioning,
operational procedures). 65 skills, 36 commands, 8 plugins.
- AGENTS.md: thin pointer to CLAUDE.md for non-Claude agents.
- .gitignore: stop ignoring CLAUDE.md (now public); ignore CLAUDE.local.md
and keep ignoring _Internal/ (maintainer-only, never published).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Pawel Huryn