Use 127.0.0.1 instead of localhost for OPENAI_API_BASE_URL

[jamiew]

On my recent-ish macOS, the OpenAI library seems to resolve localhost to ::1,
and my local web server isn't listening there

I suspect issue is somewhere else (maybe just my computer?) but this fixes it

[transitive-bullshit]

Thanks @jamiew 🙏

[evgyk]

@transitive-bullshit - Regarding the todo of understand why localhost wan't working:
First I'd suggest using 0.0.0.0 as it'll always work.
127.0.0.1 is also nice but 0.0.0.0 gives you the ability to use it over your network and not only on one pc.
localhost wasn't working because apparently it wan't set in /etc/hosts ;)

[jamiew]

0.0.0.0 is a little dangerous as it opens you up to external network which may not have been the intention

iirc the localhost issue was ipv6 vs ipv4 related -- one was using ::1 (ip6) vs. localhost which mapped to ipv4. So explicitly using an ipv4 address fixed it