-- A machine says how its network is (novox/hq ADR 0241, which extends ADR 0240 from what a module runs to
-- the machine it runs on).
--
-- Beside the state of every long-running resource, each machine's node-engine states its own networking:
-- the resolver file the uplink holder declared and who rewrote it, the names through every resolver it
-- lists, the tunnel's handshake with the hub, the bus and the default route — the worst of them, since
-- when, and each part. Kept with the machine's newest statement, replaced with it, so `node show`, the
-- gate and a controller started again read the same word. Null for a machine whose node-engine is older
-- than this judging: its network is not known — never healthy, never a reason to raise anything.
alter table node_health add column network jsonb;