debug: add stderr debug output for informer

cmd/gateway/main.go

@@ -60,8 +60,10 @@ func main() {
 	dispatcher := serviceadapter.NewDispatcher(registry)
 
 	// Start ServiceAdapter informer to watch CRDs (8.1 integration)
+	fmt.Fprintf(os.Stderr, "[DEBUG] About to start informer initialization\n")
 	var informerMgr *serviceadapter.InformerManager
 	log.Printf("[INFORMER] Starting ServiceAdapter informer initialization")
+	fmt.Fprintf(os.Stderr, "[DEBUG] Log statement issued\n")
 	if kubeConfig, err := rest.InClusterConfig(); err == nil {
 		log.Printf("[INFORMER] InClusterConfig succeeded")
 		if dynamicClient, err := dynamic.NewForConfig(kubeConfig); err == nil {