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/processing.go

@@ -82,7 +82,7 @@ func (a *PricedProcessingResource) GetExplicitDurationInS() float64 {
 			if a.IsService {
 				return -1
 			}
-			return time.Duration(1 * time.Hour).Seconds()
+			return (5 * time.Minute).Seconds()
 		}
 		return a.BookingConfiguration.UsageEnd.Sub(*a.BookingConfiguration.UsageStart).Seconds()
 	}