Add a monorepo-owned grill skill and enable it at the repository root.
Remove stale craft-skill guidance that conflicted with pull-request follow-up commits.
Move Pi runtime resources into project-local .pi directories and keep shell modules responsible for installing Pi, Herdr, gitea-axi, and Pi package patches.
Remove legacy global agent context, Claude Code customization, the global skills bridge, and the external skills flake input.
