Drop the statix and deadnix packages from the fix app now that the repository has a local Nix style linter path. Remove the obsolete statix configuration, document the evaluated rule sets and architectures, and keep vendored third-party files out of treefmt.
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.
