LOZ always requires OPENAI_API_KEY even if want to use ollama.

I'm running loz on macos.
installed nodejs with n which is nodejs version manager.
n is installed with homebrew.
With npm -g install, which loz -> /opt/homebrew/bin/loz
After then, any commands requires OPENAI_API_KEY. (even initial configuring message is not appears)
I just want to use loz with my local ollama.

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