feat: add type-nas configuration with ZFS and paperless-ngx

[funkymonkeymonk]

Summary

Adds a new cattle configuration type-nas for Network Attached Storage with:

Features

• ZFS storage pool with automatic scrubbing and snapshots
• paperless-ngx document management (port 28981)
• ZFS datasets for paperless, data, backup, and media
• Sanoid snapshots (24 hourly, 30 daily, 3 monthly)

Disk Layout

• Boot disk (ext4) for OS on /dev/sda
• ZFS pool "tank" on /dev/sdb (configurable for mirrors, RAIDZ)

Deployment

# Generate hardware config on target
nixos-facter > /etc/nixos/facter.json

# Deploy
sudo nixos-rebuild switch --flake github:funkymonkeymonk/nix#type-nas --impure

Files Added

• disk-configs/zfs-nas.nix - ZFS pool configuration
• targets/type-nas/default.nix - NAS services (paperless, ZFS tools)
• Updated flake.nix with type-nas NixOS configuration

Testing

• Lint checks pass
• NixOS evaluation succeeds
• Disko validation passes
• All foundation tests pass
• Build NixOS - type-nas passes

Changes in this update

• Merged latest main (fixes merge conflicts)
• Removed incorrect microvm.nixosModules.microvm import from type-nas config (caused networking.hostId conflict)
• Restored missing zero config modules (disko, desktop machine type, ghostty terminfo) lost during conflict resolution