I had some post-merge TODOs ready in#96499 for improvements specific to the main (3.12) branch. This is a rollup issue for those, they're all small:

• Cleanup: Moveint_max_str_digits into PyConfig in 3.12.
• Useint32_t orPy_ssize_t instead ofint for the max digits value internally.
• Minor feature: addPEP-578PySys_Audit hook calls at the new ValueError raise spots.
• Once this ships in 3.11.0: Update the version notes about it in the 3.12 docs to say 3.11 and remove the 3.12 whatsnew text about it. The original PR was created not knowing exactly when we'd be able to merge.