Partially fixes#4321, since Azure OpenAI API can be converted to OpenAI
API.
Release Notes:
- Added `assistant.openai_api_url` setting to allow OpenAI API URL to be
configured.
---------
Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>
This PR updates the casing of "OpenAI" when used in Rust identifiers to
match the [Rust naming
guidelines](https://rust-lang.github.io/api-guidelines/naming.html):
> In `UpperCamelCase`, acronyms and contractions of compound words count
as one word: use `Uuid` rather than `UUID`, `Usize` rather than `USize`
or `Stdin` rather than `StdIn`.
Release Notes:
- N/A