Keep what an adopted node reports holding, the firewall it found and what is reachable on it (hq ADR 0100)

internal/inventory/migrations/0030-what-an-adopted-node-reports.sql

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+-- What an adopted node last reported about adoption (novox/hq ADR 0100): the files and containers
+-- it found and holds until their module is taken, the firewall it found, and what is reachable on
+-- the machine now — which converging it previews, so nothing closes without being named first.
+--
+-- The last report, replaced, like what a node owns: the question is the machine as it is now.
+-- Kept apart from node_report because a node reports it on its own schedule, when what it holds
+-- changes, and not only after an apply.
+
+alter table node add column held jsonb;
+alter table node add column firewall text;
+alter table node add column reachable jsonb;
+alter table node add column adoption_reported timestamptz;