Migrate

Host-to-host VM disk migration primitives for swamp. The @mccormick/migrate/disk model is the hypervisor-neutral middle of a VM lift-and-shift. stream copies a powered-off source block device to a destination block device over an encrypted, compressed pipe (dd | zstd | ssh "zstd -dc | dd conv=sparse"), either direct (source→dest) or relayed through the swamp host, with auto probing which is reachable and verifying the written byte count. edit_guest_disk is the agent-absent network fallback: it mounts the guest's LVM root over qemu-nbd (or locally) on a tool host, rewrites netplan to match by the target MAC, disables cloud-init networking, and tears it all down in a trap. verify polls a cutover IP for TCP/ICMP reachability. Paired with @mccormick/truenas/vm (provisioning) and a Proxmox inspect step, these primitives compose into the migrate-vm workflow. SSH is spawned directly (never sh -c locally) and every interpolated path is POSIX-quoted. The workflow-scoped @mccormick/migrate/summary report joins a run's resources (the Proxmox spec, TrueNAS zvol/VM/device, transfer, network-prep, and verify) into a markdown summary: source→target, firmware mapping, bytes verified, MAC preserved, reachability, and a rollback hint.