Workflow lifecycle events + resource instance duration tracking

- Add WorkflowLifecycleEvent + StepMetric to tools/workflow_lifecycle.go
- Add WORKFLOW_STARTED_EVENT, WORKFLOW_STEP_DONE_EVENT, WORKFLOW_DONE_EVENT NATS methods
- ResourceInstance.UpdateAverageDuration for AverageDurationS running average
- Support Steps recap in WORKFLOW_DONE_EVENT for catch-up by oc-scheduler/oc-catalog

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

models/resources/resource.go

@@ -66,7 +66,7 @@ func (r *AbstractResource) CanDelete() bool {
 type AbstractInstanciatedResource[T ResourceInstanceITF] struct {
 	AbstractResource // AbstractResource contains the basic fields of an object (id, name)
 
-	Instances []T `json:"instances,omitempty" bson:"instances,omitempty"` // Bill is the bill of the resource            // Bill is the bill of the resource
+	Instances []T `json:"instances,omitempty" bson:"instances,omitempty"`
 }
 
 func (abs *AbstractInstanciatedResource[T]) AddInstances(instance ResourceInstanceITF) {
@@ -109,17 +109,26 @@ func (abs *AbstractInstanciatedResource[T]) ConvertToPricedResource(t tools.Data
 	if selectedBookingModeIndex != nil && abs.AllowedBookingModes[booking.BookingMode(*selectedBookingModeIndex)] != nil {
 		variations = append(variations, abs.AllowedBookingModes[booking.BookingMode(*selectedBookingModeIndex)])
 	}
+	// Seed the booking configuration with the instance's historical average duration
+	// so GetExplicitDurationInS() returns a realistic default out of the box.
+	var bc *BookingConfiguration
+	if inst != nil {
+		if avg := inst.GetAverageDurationS(); avg > 0 {
+			bc = &BookingConfiguration{ExplicitBookingDurationS: avg}
+		}
+	}
 	return &PricedResource{
-		Name:            abs.Name,
-		Logo:            abs.Logo,
-		ResourceID:      abs.UUID,
-		InstanceID:      inst.GetID(),
-		ResourceType:    t,
-		Quantity:        1,
-		InstancesRefs:   instances,
-		SelectedPricing: profile,
-		Variations:      variations,
-		CreatorID:       abs.CreatorID,
+		Name:                 abs.Name,
+		Logo:                 abs.Logo,
+		ResourceID:           abs.UUID,
+		InstanceID:           inst.GetID(),
+		ResourceType:         t,
+		Quantity:             1,
+		InstancesRefs:        instances,
+		SelectedPricing:      profile,
+		Variations:           variations,
+		CreatorID:            abs.CreatorID,
+		BookingConfiguration: bc,
 	}, nil
 }
 
@@ -196,6 +205,9 @@ type ResourceInstance[T ResourcePartnerITF] struct {
 	Outputs        []models.Param        `json:"outputs,omitempty" bson:"outputs,omitempty"`
 
 	Partnerships []T `json:"partnerships,omitempty" bson:"partnerships,omitempty"`
+
+	AverageDurationS       float64 `json:"average_duration_s,omitempty" bson:"average_duration_s,omitempty"`
+	AverageDurationSamples int     `json:"average_duration_samples,omitempty" bson:"average_duration_samples,omitempty"`
 }
 
 // TODO should kicks all selection
@@ -285,6 +297,17 @@ func (ri *ResourceInstance[T]) ClearPeerGroups() {
 	}
 }
 
+func (ri *ResourceInstance[T]) GetAverageDurationS() float64 {
+	return ri.AverageDurationS
+}
+
+func (ri *ResourceInstance[T]) UpdateAverageDuration(actualS float64) {
+	buffered := actualS * 1.20
+	n := float64(ri.AverageDurationSamples)
+	ri.AverageDurationS = (ri.AverageDurationS*n + buffered) / (n + 1)
+	ri.AverageDurationSamples++
+}
+
 type ResourcePartnerShip[T pricing.PricingProfileITF] struct {
 	Namespace       string              `json:"namespace" bson:"namespace" default:"default-namespace"`
 	PeerGroups      map[string][]string `json:"peer_groups,omitempty" bson:"peer_groups,omitempty"`