Python: Fix PowerFx eval crash on non-English system locales by setting CurrentUICulture to en-US#4408

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moonbox3 merged 3 commits intomicrosoft:mainfrom

moonbox3:agent/fix-4321-1

Mar 4, 2026

Commits on Mar 3, 2026

Fix #4321: Set CurrentUICulture to en-US in PowerFx eval()

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Reuse single CultureInfo instance to avoid redundant allocations

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Add assertion for CurrentUICulture restoration after eval

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