Offer api_key_command config option

[smackesey]

ChatGPT.nvim offers a handy auth method that executes an external command to obtain an API key. This is really nice if you store your API key in e.g. 1Password: https://github.com/jackMort/ChatGPT.nvim#secrets-management

sg.nvim should offer the same thing.

[tjdevries]

I currently have require('sg.auth').set(endpoint, token), which you could call in your setup if you wanted to provide alternative authentication.

Would that meet what you want to do? I'm not opposed to doing something similar to api_key_command though.