fix: check for nil round tripper when detecting bootstrap status from…

… local storage

pkg/meshnode/bootstrap.go

@@ -51,6 +51,10 @@ func (s *meshStore) bootstrap(ctx context.Context, opts ConnectOptions) error {
 	if bootstrapped {
 		// We have data, so the cluster is already bootstrapped.
 		s.log.Info("Cluster already bootstrapped, attempting to rejoin as voter")
+		if opts.JoinRoundTripper == nil {
+			s.log.Info("Cluster already bootstrapped, but we have no join transport. Recovering from storage.")
+			return s.recoverWireguard(ctx)
+		}
 		return s.join(ctx, opts)
 	}
 	s.log.Debug("Cluster not yet bootstrapped, attempting to bootstrap")