Say a module assigned and left out of its machine's composition as a condition (issue 380)

A push leaves out a module whose settings do not compose and sends the rest,
which is right, but only plan said so: nfs-server ran nowhere for days while
the operator believed it ran. The self-check now raises needs-operator for a
setting nobody gave, naming the setting and the command, and left-out for any
other cause; both warnings, cleared once the module composes or is unassigned.
status and node show list the same modules as assigned, not applied.

cmd/mesh-controller/status.go

@@ -289,6 +289,10 @@ func printStatus(asked answers) error {
 		fmt.Printf("\n  `take <node> <module>` compares what runs against what it declares, and runs it\n\n")
 	}
 
+	// Assigned and not applied (novox/hq issue 380): before what is merely reported, because it reads like work
+	// finished and is none.
+	printNotApplied(asked.leftOut)
+
 	if len(asked.unheld) > 0 {
 		// **Reported, and not refused yet** (novox/hq ADR 0207 §4). Each machine still resolves and
 		// is sent what it would be; this says which of its modules depend on a seat nothing there
@@ -456,6 +460,13 @@ func theThreeQuestions(ctx context.Context, open *stores) (answers, error) {
 			return answers{}, err
 		}
 		plans[n.Name] = planned{plan, settings}
+		// And which of its modules a push leaves out (novox/hq issue 380), judged as the push judges it.
+		if left := leftOutOf(plan, settings, n.Adopted); len(left) > 0 {
+			if out.leftOut == nil {
+				out.leftOut = map[string][]leftOutModule{}
+			}
+			out.leftOut[n.Name] = left
+		}
 		out.unheld = append(out.unheld, plan.Unheld...)
 		// And which of its modules a provider leaves out of its grants, for an identity too long
 		// for what the provision keeps (novox/hq ADR 0225) — judged from the consumer's own
@@ -604,7 +615,7 @@ func untakenModules(ctx context.Context, inv *inventory.Inventory, nodes []inven
 // read as success for the whole of the edge cut-over outage (novox/hq 04-ISSUES/125).
 func (a answers) well() bool {
 	return len(a.wrong) == 0 && len(a.quiet) == 0 && len(a.behind) == 0 &&
-		len(a.waiting) == 0 && len(a.refused) == 0 && a.network == "" && len(a.untaken) == 0 &&
+		len(a.waiting) == 0 && len(a.refused) == 0 && a.network == "" && len(a.untaken) == 0 && len(a.leftOut) == 0 &&
 		len(a.filtered) == 0 && len(a.unheld) == 0 && len(a.overflowing) == 0 &&
 		len(a.conditions) == 0 && a.conditionsUnread == "" && a.pendingUnread == "" && !pendingOpen(a.pending)
 }