Support Enter to submit login

backend/cmd/server/main.go

@@ -24,6 +24,7 @@ func main() {
 	go func() {
 		r := api.SetupRouter(srv)
 		monitor.Infof("API server listening on :8080")
+		monitor.Infof("Web console listening on :8080/admin")
 		if err := r.Run(":8080"); err != nil {
 			monitor.Errorf("Failed to start API server: %v", err)
 		}