Replace skill dirs with symlinks to top-level skills/
.claude/skills and .agents/skills now symlink directly to skills/
instead of holding manual copies. Updated .gitignore to track the
.agents/skills symlink while still ignoring other .agents/ contents.
New skills added to skills/ are automatically visible to all agent
harnesses.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>