A machine the network filter drops is said, not skipped in silence (hq issue 188)

onTheNetwork resolves every machine unchecked and skipped one whose resolution refused. A machine
skipped there has no address, so its own plan fails on the first placeholder that needs one, in another
module's words, every seat held on it reads as unheld, and what is built from it cannot be built — four
symptoms, none naming the refusal (2026-10-01, the control node, forty minutes). The refusal is now said
where it happens, in the resolver's own words.

cmd/mesh-controller/network.go

@@ -567,6 +567,9 @@ func onTheNetwork(ctx context.Context, inv *inventory.Inventory,
 			catalogue.Node{Name: p.Name, Site: p.Site, Capabilities: caps},
 			catalogue.World{Unchecked: true, Holdings: holdings})
 		if err != nil {
+			// Said, not skipped in silence: a machine dropped here loses its address, and every
+			// plan that names it fails in another module's words (novox/hq issue 188).
+			fmt.Fprintf(os.Stderr, "%s is not counted as on the network: it does not resolve: %v\n", p.Name, err)
 			continue
 		}
 		for _, m := range got.Modules {