Models registered via web ui --register file.json don't appear as available on openai server list

[surak]

If you have a model loaded from a json file, it will appear on the list of the available models on the web UI, but it won't appear on the openai_api_server, because it's not added to the controller.

[surak]

Adding the model with the register_worker.py will fail with a 404.

For example, an ollama server is running at its default port 11434. If I add it via the json file, it opens fine on the web ui.
If I try to open it with the python3 fastchat/serve/register_worker.py --controller http://localhost:21001 --worker-name http://localhost:11434, it will fail.

Should we add support for the json file on the register_worker.py or make the web interface add the worker to the controller?