- Remove proxmox/talos/null providers and variables
- Remove HTTP backend, use local state
- Remove skookum.me, towerops.net, vntx.net, as393837.net from DNS
- Switch aprs.me NS to Cloudflare
- Rename terraform/ to tofu/
- Add marcfrederick/porkbun provider for registrar NS management
- Add dns.tf with all 14 Porkbun domains and import blocks
- Update gridmap.org BIND9 zone NS to Cloudflare
- Update CLAUDE.md to reflect new directory structure