CLEANUP/MINOR: replace panic with graceful exit on job errors

Replaced panic calls with standard error printing to stderr and os.Exit(1) during CRD and Gateway API installation jobs. This prevents messy stack traces from polluting the logs when an installation step fails, providing cleaner and more user-friendly error output.

Author: oktalz

cmd/controller/main.go

@@ -49,15 +49,17 @@ func main() {
 
 	if hugConfig.JobCheckCRD {
 		if err := jobs.CRDInstall(hugConfig.External.External); err != nil {
-			panic(err)
+			fmt.Fprintln(os.Stderr, err)
+			os.Exit(1)
 		}
 		fmt.Println("CRD refresh job completed successfully")
 		return
 	}
 
 	if hugConfig.JobGWAPI != "" {
 		if err := jobs.GWAPIInstall(hugConfig.External.External, hugConfig.JobGWAPI); err != nil {
-			panic(err)
+			fmt.Fprintln(os.Stderr, err)
+			os.Exit(1)
 		}
 		fmt.Println("Gateway API CRD installation completed successfully")
 		return

hug/jobs/gwapi.go

@@ -53,7 +53,10 @@ func GWAPIInstall(external bool, version string) error {
 		return err
 	}
 
-	clientset := apiextensionsclientset.NewForConfigOrDie(config)
+	clientset, err := apiextensionsclientset.NewForConfig(config)
+	if err != nil {
+		return fmt.Errorf("failed to create API extensions client: %w", err)
+	}
 
 	// Parse the multi-document YAML into individual CRD documents
 	crds := splitYAMLDocuments(data)