Review stdlib with Anthropic Opus 5, Fable or later and OpenAI Sol, Astra or later models

[heikkitoivonen]

So far I have been doing some of the most commonly used, or most commonly referenced docs by analytics, and Opus 5/Fable and Astra models have found issues in pretty much every doc and test file they have looked at.

I think at least following are already done:

• annotationlib.md
• counter.md
• deque.md
• fcntl.md
• zoneinfo.md
• ast.md