Mistral API does not work for text completions

[rtar]

What happened?

Mistral API does not work for text completions.

I.e. there is no way to use either free or paid codestral on their site through this plugin.

I think the reason is that llm-client expects text field within a response, while, in reality, message field comes.

Here is the documentation for that API with an example response: https://docs.mistral.ai/api/#tag/fim/operation/fim_completion_v1_fim_completions_post

Relevant log output or stack trace

No response

Steps to reproduce

Configure Mistral API to use codestral-latest with "Custom OpenAI" provider. Either free or paid endpoint is okay.

No code completion works. onMessage method is called with empty string.

CodeGPT version

2.11.4

Operating System

None