Adds resolve_lan_host(lan, topology) and partition_lans_by_host(h)
in topology.persistence — the single source of truth every per-host
caller (deployer, mutator, validator) consults to decide where a LAN
belongs. Resolution: lan.host_uuid → topology.target_host_uuid →
None (master).
Adds validator rule BRIDGE_HOST_SPLIT: a multi-homed (bridge) decky
attached to LANs that resolve to different hosts is rejected at
deploy-time. A bridge decky is one container with NICs into multiple
LANs; under the co-locate constraint (no overlay network), all those
LANs must share a host.
anti
448fcd1227