if we allow user to pass /<onion_pubkey>.onion:port/<tdex_daemon_path> the full onion endpoint in path (both .onion and port) we can drop requirement to have it on the registry in order to proxy
When started with an URL, the proxy should monitor that for some diff and pull in case new entries are added, so we do not need to restart every time tdex-registry merge a pull request. Would be best if configurable the interval, like twice a day.