- nfs_server: nfs_package_name (nfs-utils / nfs-kernel-server)
- wireguard: wireguard_package_name (wireguard-tools / wireguard)
- tooling: tooling_dig_package, tooling_netcat_package
Also fix tooling role structure: move tooling.yml to tasks/main.yml so
the role is actually invokable via 'role: tooling' (defaults/main.yml
is auto-loaded), and collapse the 10 individual package tasks into a
single list-based install.