feat (provider/openai-compatible) Additional exports for detailed customization

[minpeter]

When creating an external provider using provider/openai-compatible, additional exports are required for detailed customization.

[lgrammel]

I'm on board with exporting these. However, they should be exported under /internal because they are for providers that extend openai-compatible, and not for end users.

@shaper wdyt? would an /internal dist make sense here and can you help out if so?

[shaper]

I'm on board with exporting these. However, they should be exported under /internal because they are for providers that extend openai-compatible, and not for end users.

@shaper wdyt? would an /internal dist make sense here and can you help out if so?

Sure, @minpeter let me propose an updated PR, I will include you on it as a reviewer. I plan to send it today and will reference this PR as source.

[shaper]

It seems I can't add you as a reviewer but please follow #4179 and comment with any questions. It should be the same as what's here except you'll import from @ai-sdk/openai-compatible/internal.

[shaper]

@minpeter thanks for your patience, the change in #4179 includes your commit for tracking purposes and it should be live shortly in v0.0.13 per #4201