Build modules: give the puller the settings file and say a capacity of 0 in health (needs the mesh-sdk fix/park-wakes pin)

modules/mesh-build-node/cmd/mesh-build-node/asks.go

@@ -55,9 +55,11 @@ func (m *Module) Puller(steps []StepTool, source buildstep.AskSource) *buildstep
 	// nothing new.
 	var cores func() float64
 	var hours func() (*buildstep.BuildWindow, string)
+	settings := ""
 	if capacity == nil {
 		hours = buildstep.NodeBuildHours(m.Settings, m.Node, m.Say)
 		capacity = buildstep.NodeCapacity(m.Settings, m.Node, m.Say)
+		settings = m.Settings
 		watch = buildstep.WatchConfigServed
 		cores = buildstep.NodeCoresPerStep(m.Settings, buildstep.DefaultCoresPerStep[delivery.AskNode], m.Say)
 	}
@@ -67,7 +69,7 @@ func (m *Module) Puller(steps []StepTool, source buildstep.AskSource) *buildstep
 		load = func(key string) ([]byte, error) { return m.ReadPauses.Get(key) }
 	}
 	return &buildstep.Puller{Source: source, Language: delivery.AskNode, Node: m.Node, Put: m.Steps, PausePut: m.Pauses, Load: load,
-		Capacity: capacity, WatchConfig: watch, CoresPerStep: cores, BuildHours: hours, Logf: m.Say,
+		Capacity: capacity, SettingsFile: settings, WatchConfig: watch, CoresPerStep: cores, BuildHours: hours, Logf: m.Say,
 		Run: func(ctx context.Context, a delivery.StepAsk) (any, error) {
 			if err := m.Prepare(ctx); err != nil {
 				return nil, err

modules/mesh-build-node/cmd/mesh-build-node/module.go

@@ -159,7 +159,17 @@ func (m *Module) Health(ctx context.Context) health.Answer {
 	if err := m.room(); err != nil {
 		return health.Unhealthy(err.Error())
 	}
-	return health.Healthy(fmt.Sprintf("node %s installed, the version the module builds with (recipe %s)", installed, m.recipe().Version()))
+	note := ""
+	if m.Held != nil {
+		why, fault := m.Held.CapacityNote()
+		if fault {
+			return health.Unhealthy(why)
+		}
+		if why != "" {
+			note = "; " + why // a capacity set to 0 is a choice, said so a starved builder is seen
+		}
+	}
+	return health.Healthy(fmt.Sprintf("node %s installed, the version the module builds with (recipe %s)", installed, m.recipe().Version()) + note)
 }
 
 // Long is a tool that runs a long step (ADR 0469 §2): it answers at once with the step's id, and the step ends on