Upgrade Perseus from 22.7.0 to 75.7.1#14388

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Commits on Jun 5, 2026

Upgrade Perseus from 22.7.0 to 77.9.0 with all dependencies

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Replace KaTeX/MathJax hybrid with @khanacademy/mathjax-renderer

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Import Perseus CSS from packages with rem-to-px conversion

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Adapt to Perseus v75 API changes

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Update Perseus translator strings for v77

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Normalize non-Western numerals to ASCII before Perseus scoring

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Replace MobileKeypad with Vue NumericKeypad component

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Localize restored answer state to native numeral system

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Shim react-router-dom-v5-compat for Wonder Blocks components

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Flatten CSS @layer at build time via postcss-cascade-layers

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