Every resolution fault found on 2026-10-03 was a per-node copy disagreeing with the truth: a hosts
file read once, an operator's old line beside the mesh's, a node's resolver lent to a LAN. Every
tunnel already converges on one node. Retires node-dns-resolver for a mesh-scoped mesh-resolver;
nodes route only the mesh's suffix to it. Narrows 0121; amends connectivity §2 and the seats.
