build_usage says a seat's build hours, and when it is outside them

A build module's capacity.<node> now carries its node's build window (the operator, 2026-10-26: g14
builds only from 18:00 to 06:00); the seat shows it, outside it says it takes nothing new, and a
value the module cannot read shows as any hour with the value and why. The checker's and the view's
SDK pin moves to mesh-sdk d00dac1.

modules/mesh-delivery-checker/go.mod

@@ -3,7 +3,7 @@ module mesh-delivery-checker
 go 1.26.0
 
 require (
-	git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026185254-02f50bd9d642
+	git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026202137-d00dac140b03
 	github.com/nats-io/nats-server/v2 v2.11.17
 	github.com/nats-io/nats.go v1.54.0
 )

modules/mesh-delivery-checker/go.sum

@@ -1,5 +1,5 @@
-git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026185254-02f50bd9d642 h1:mSBxF9KgIJyNL0gOKYq5naWewUj2yazU/tGOh12Tze0=
-git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026185254-02f50bd9d642/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
+git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026202137-d00dac140b03 h1:QIcGyV96AHZ6t/4AgBDlUOcs5tq40PppC7pwEpmzZco=
+git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026202137-d00dac140b03/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
 github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op h1:Z/MZK75wC/NSrkgqeNIa7jexam9uWzhLmFTSCPI/kn0=
 github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op/go.mod h1:FQyySiasQQM8735Ddel3MRojmy4dA1IqCeyJ5jmPMbI=
 github.com/google/go-tpm v0.9.8 h1:slArAR9Ft+1ybZu0lBwpSmpwhRXaa85hWtMinMyRAWo=

modules/mesh-delivery-view/go.mod

@@ -3,7 +3,7 @@ module mesh-delivery-view
 go 1.26.0
 
 require (
-	git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026185254-02f50bd9d642
+	git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026202137-d00dac140b03
 	github.com/nats-io/nats-server/v2 v2.11.17
 	github.com/nats-io/nats.go v1.54.0
 )

modules/mesh-delivery-view/go.sum

@@ -1,5 +1,5 @@
-git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026185254-02f50bd9d642 h1:mSBxF9KgIJyNL0gOKYq5naWewUj2yazU/tGOh12Tze0=
-git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026185254-02f50bd9d642/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
+git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026202137-d00dac140b03 h1:QIcGyV96AHZ6t/4AgBDlUOcs5tq40PppC7pwEpmzZco=
+git.novox.be/novox/mesh-sdk/go v0.1.14-0.20261026202137-d00dac140b03/go.mod h1:ouERNpZizzwZ0HLEtAypsY9FR20FyUgUYRni6J7kVCY=
 github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op h1:Z/MZK75wC/NSrkgqeNIa7jexam9uWzhLmFTSCPI/kn0=
 github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op/go.mod h1:FQyySiasQQM8735Ddel3MRojmy4dA1IqCeyJ5jmPMbI=
 github.com/google/go-tpm v0.9.8 h1:slArAR9Ft+1ybZu0lBwpSmpwhRXaa85hWtMinMyRAWo=

modules/mesh-delivery-view/internal/view/usage.go

@@ -108,8 +108,14 @@ type SeatUsage struct {
 	// Configured is mesh-config's capacity when the module says it judges by a lower one (capacity.<node> of its pauses
 	// state: the configured capacity bounded by its node's build CPU, issue 1806's follow-up); Capacity is then the
 	// module's and CapacityFrom its why.
-	Configured int  `json:"configured,omitempty"`
-	Paused     bool `json:"paused"`
+	Configured int `json:"configured,omitempty"`
+	// BuildHours is the node's build window as the module says it (HH:MM-HH:MM and its zone), absent when it builds at any
+	// hour; OutsideHours says the module judged the time outside it, so it takes nothing new (the operator, 2026-10-26).
+	BuildHours   string `json:"build_hours,omitempty"`
+	OutsideHours bool   `json:"outside_hours,omitempty"`
+	// BuildHoursFault is why the module cannot read its node's build-hours value, naming it: it then builds at any hour.
+	BuildHoursFault string `json:"build_hours_fault,omitempty"`
+	Paused          bool   `json:"paused"`
 	// Eligible says it takes asks: it holds the seat, has a capacity above 0 and is not paused; WhyNot says why not.
 	// EligibleKnown is false when this tool cannot tell (it cannot read mesh-config's capacities): Eligible is then
 	// absent, never false, and WhyNot starts "not known: ".
@@ -468,10 +474,17 @@ func (u UsageReader) Usage() UsageAnswer {
 				s.Capacity = (&buildrun.Places{Capacity: caps}).CapacityOf(node)
 				s.CapacityFrom = fmt.Sprintf("the modules' default %q: mesh-config holds no resolved value for %s on %s", buildstep.DefaultCapacities, s.Module, node)
 			}
-			if c, ok := judged[node+"."+lang]; ok && s.Holds && unknown == "" && !isBad && c.Configured == s.Capacity && c.Effective != c.Configured {
-				// The module running on the node judges by less than mesh-config gives: its node's build CPU bounds it.
-				s.Configured, s.Capacity = s.Capacity, c.Effective
-				s.CapacityFrom = fmt.Sprintf("%s, as %s on %s judges it (said %s)", c.Why, s.Module, node, c.At.UTC().Format(time.RFC3339))
+			if c, ok := judged[node+"."+lang]; ok && s.Holds && unknown == "" && !isBad && c.Configured == s.Capacity {
+				// The module running on the node says its build hours, and judges by less than mesh-config gives when its
+				// node's build CPU bounds it or the time is outside its build hours.
+				s.BuildHours, s.OutsideHours = c.BuildHours, c.OutsideHours
+				if c.BuildHoursFault != "" {
+					s.BuildHours, s.BuildHoursFault = "any hour", c.BuildHoursFault
+				}
+				if c.Effective != c.Configured {
+					s.Configured, s.Capacity = s.Capacity, c.Effective
+					s.CapacityFrom = fmt.Sprintf("%s, as %s on %s judges it (said %s)", c.Why, s.Module, node, c.At.UTC().Format(time.RFC3339))
+				}
 			}
 			s.Paused = paused[node+"."+lang]
 			s.EligibleKnown = true
@@ -487,6 +500,8 @@ func (u UsageReader) Usage() UsageAnswer {
 				s.WhyNot = "not known: this tool cannot read its capacity (" + unknown + ")"
 			case isBad:
 				s.WhyNot = "its capacity on " + node + " cannot be read, so its puller uses 0"
+			case s.OutsideHours:
+				s.WhyNot = "outside its build hours " + s.BuildHours + " on " + node + ": it takes nothing new until they open"
 			case s.Capacity == 0:
 				s.WhyNot = "its capacity on " + node + " is 0"
 			}

modules/mesh-delivery-view/internal/view/usage_test.go

@@ -206,6 +206,17 @@ func TestBuildUsageAnswersEveryNodesUseFromTheStates(t *testing.T) {
 	if sa := seatOf(t, bound, "ace", "node-build-go"); sa.Capacity != 2 || sa.Configured != 0 {
 		t.Errorf("a module's word older than mesh-config's value is not taken: %+v", sa)
 	}
+	// The operator, 2026-10-26: outside its build hours the seat takes nothing new, and says so.
+	u.Pauses["go"] = states(map[string]string{"capacity.shanks": `{"v":1,"effective":0,"configured":2,"build-hours":"18:00-06:00 CET","outside-hours":true,"why":"0, outside its build hours 18:00-06:00 CET until 18:00 (otherwise 2)","at":"2026-10-26T11:00:00Z"}`})
+	if so := seatOf(t, u.Usage(), "shanks", "node-build-go"); so.Capacity != 0 || !so.OutsideHours || so.Eligible == nil || *so.Eligible ||
+		so.WhyNot != "outside its build hours 18:00-06:00 CET on shanks: it takes nothing new until they open" {
+		t.Errorf("a seat outside its build hours: %+v", so)
+	}
+	// A build-hours value the module cannot read: it builds at any hour, and the seat says the value and why.
+	u.Pauses["go"] = states(map[string]string{"capacity.shanks": `{"v":1,"effective":2,"configured":2,"build-hours-fault":"the build hours \"shanks=18:00-6\": \"6\" is not a time HH:MM","why":"2; at any hour, because its build hours cannot be read","at":"2026-10-26T11:00:00Z"}`})
+	if sf := seatOf(t, u.Usage(), "shanks", "node-build-go"); sf.BuildHours != "any hour" || !strings.Contains(sf.BuildHoursFault, "shanks=18:00-6") || sf.Eligible == nil || !*sf.Eligible {
+		t.Errorf("a seat whose build hours cannot be read: %+v", sf)
+	}
 	if len(bound.TriesRunning) != 1 || len(bound.TriesRunning[0].Asks) != 1 || !strings.Contains(string(bound.TriesRunning[0].Steps), "unit: tests") ||
 		strings.Contains(strings.Join(bound.Notes, " | "), "name no ask yet") {
 		t.Errorf("a running try naming its asks: %+v, notes %v", bound.TriesRunning, bound.Notes)