Disable NKEY connection for now

Not used and it wasn't working
Added a connection name to make it easier to track the connection

main.go

@@ -54,14 +54,14 @@ func main() {
 	}
 
 	// Set up NATS connection options
-	opts := []nats.Option{}
+	opts := []nats.Option{nats.Name("Web proxy")}
 
 	if natsUser != "" && natsPassword != "" {
 		opts = append(opts, nats.UserInfo(natsUser, natsPassword))
 	} else if natsToken != "" {
 		opts = append(opts, nats.Token(natsToken))
 	} else if natsNkey != "" && natsNkeySeed != "" {
-		opts = append(opts, nats.Nkey(natsNkey, []byte(natsNkeySeed)))
+		log.Fatalln("NKEY connection not supported")
 	} else if natsCredsFile != "" {
 		opts = append(opts, nats.UserCredentials(natsCredsFile))
 	}