refactor: use #[napi(module_exports)]

[CPunisher]

Summary

#[napi(module_exports)] supports wasm while the legacy #[module_exports] not.

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[netlify]

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[codspeed-hq]

CodSpeed Performance Report

Merging #10437 will not alter performance

_{Comparing CPunisher:05-21-refactor/module-exports (094c991) with main (3c46a52)}

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Summary

✅ 11 untouched benchmarks