Introduces API to get inference config, removes unused inference config defaults

[bejaeger]

No description provided.

[bejaeger]

This change is part of the following stack:

• Introduces API to get inference config, removes unused inference config defaults #890 ◀

_{Change managed by git-spice.}

[chatgpt-codex-connector]

Codex usage limits have been reached for code reviews. Please check with the admins of this repo to increase the limits by adding credits.
Credits must be used to enable repository wide code reviews.

[gemini-code-assist]

Code Review

This pull request introduces a get_inference_config method to both the classifier and regressor, allowing users to access the active configuration before calling fit. It also cleans up the codebase by removing unused V2.6 preprocessor configurations and presets. The review feedback recommends returning a deep copy of the configuration object to prevent accidental mutation of the estimator's internal state and suggests standardizing docstring formatting for better consistency across the documentation.

[adrian-prior]

LGTM!

[adrian-prior]

Sorry,
I think I previously overlooked something. Can't we now remove _get_tabpfn_v2_6_config: https://github.com/PriorLabs/TabPFN/blob/231de0c/src/tabpfn/inference_config.py#L332-L364?

[bejaeger]

Yep, should be removed with this PR?

[oscarkey]

lgtm!
Maybe a unit test for each? 😇