Raise a machine's network from what its engine says, once (hq ADR 0241)

A VPN client rewrote the laptop's resolver file and nothing said so. The
engine now states its machine's networking; the controller keeps it with
the machine's health (migration 0077) and raises the rewrite as its own
finding naming the writer, the machine's own faults as machine.<m>.network,
and what several machines cannot reach once, there. The gate waits on a
rewrite it did not make rather than putting back a good build.

cmd/mesh-controller/module_health.go

@@ -83,8 +83,16 @@ func stateHealth(ctx context.Context, inv *inventory.Inventory, k *conditions.Ke
 	for module := range unhealthy {
 		streaks[module] = prev.Streaks[module] + 1
 	}
+	var network *inventory.NetworkHealth
+	if h.Network != nil {
+		network = &inventory.NetworkHealth{State: h.Network.State, Since: h.Network.Since, Parts: []inventory.NetworkPart{}}
+		for _, p := range h.Network.Parts {
+			network.Parts = append(network.Parts, inventory.NetworkPart{Part: p.Part, State: p.State, Reason: p.Reason,
+				Said: p.Said, Writer: p.Writer, Owner: p.Owner, Toward: p.Toward, Since: p.Since, Streak: p.Streak})
+		}
+	}
 	stored, err := inv.RecordHealth(ctx, inventory.NodeHealth{Node: node, Contract: h.Contract, SaidAt: h.At,
-		HeardAt: now, Resources: resources, Streaks: streaks})
+		HeardAt: now, Resources: resources, Streaks: streaks, Network: network})
 	if err != nil || !stored {
 		if err == nil {
 			healthRefused.Add(1)
@@ -94,7 +102,16 @@ func stateHealth(ctx context.Context, inv *inventory.Inventory, k *conditions.Ke
 	if k == nil {
 		return nil
 	}
-	return judgeModuleHealth(ctx, inv, k, node, unhealthy, streaks, now)
+	err = judgeModuleHealth(ctx, inv, k, node, unhealthy, streaks, now)
+	// And every machine's network, from every machine's newest statement (ADR 0241): a statement about one
+	// machine can hold another's finding, or release it.
+	if nerr := judgeNetworks(ctx, inv, k, now); nerr != nil {
+		if err == nil {
+			return nerr
+		}
+		return fmt.Errorf("%w; %v", err, nerr)
+	}
+	return err
 }
 
 // judgeModuleHealth raises a module's condition on a machine on the second statement in a row that says a