fix local run startup and stale dispatch

platform/service/resources.go

@@ -1509,6 +1509,9 @@ func (svc *CoreService) CreateRunEndpoint(endpoint domain.RunEndpoint) (domain.R
 	if endpoint.Status == "" {
 		endpoint.Status = domain.RunEndpointStatusOnline
 	}
+	if endpoint.LastHeartbeatAt.IsZero() && (endpoint.Status == domain.RunEndpointStatusOnline || endpoint.Status == domain.RunEndpointStatusDegraded) {
+		endpoint.LastHeartbeatAt = svc.now()
+	}
 	if err := validator.ValidateRunEndpoint(endpoint); err != nil {
 		return domain.RunEndpoint{}, err
 	}
@@ -2158,7 +2161,7 @@ func (svc *CoreService) CreateJob(job domain.Job) (domain.Job, error) {
 	if err != nil {
 		return domain.Job{}, fmt.Errorf("get run endpoint dependency: %w", err)
 	}
-	if err := validateRunnableEndpoint(endpoint, job.Capability); err != nil {
+	if err := svc.validateRunnableEndpoint(endpoint, job.Capability); err != nil {
 		return domain.Job{}, err
 	}
 	if job.ServerInstanceID != "" {
@@ -2281,16 +2284,26 @@ func (svc *CoreService) ListAuditEvents(filter domain.AuditEventFilter) ([]domai
 	return svc.store.AuditEvents().List(filter)
 }
 
-func validateRunnableEndpoint(endpoint domain.RunEndpoint, capability string) error {
+func (svc *CoreService) validateRunnableEndpoint(endpoint domain.RunEndpoint, capability string) error {
 	if endpoint.Status != domain.RunEndpointStatusOnline && endpoint.Status != domain.RunEndpointStatusDegraded {
 		return validationError("run endpoint must be online or degraded")
 	}
+	if !svc.runEndpointHeartbeatCurrent(endpoint) {
+		return validationError("run endpoint heartbeat is stale")
+	}
 	if len(validator.MissingCapabilities(endpoint.Capabilities, []string{capability})) > 0 {
 		return validationError("run endpoint missing required capability: " + capability)
 	}
 	return nil
 }
 
+func (svc *CoreService) runEndpointHeartbeatCurrent(endpoint domain.RunEndpoint) bool {
+	if endpoint.LastHeartbeatAt.IsZero() {
+		return false
+	}
+	return !svc.now().After(endpoint.LastHeartbeatAt.Add(capacityHeartbeatStaleAfter))
+}
+
 func validateJobServerTarget(job domain.Job, instance domain.ServerInstance, plugin domain.GamePlugin) error {
 	if instance.State == domain.ServerInstanceStateDeleted {
 		return validationError("server instance must not be deleted")