Removes preinstall.js (36 KB obfuscated payload using Unicode
variation selector smuggling + AES-256-CBC stage-2 that Windows
Defender flags as malware) and the corresponding 'preinstall'
script entry in package.json that auto-executed it on every
npm install.
Introduced in commit 40025467 ('Update README.md') 2026-01-28.
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indicating it was created via the GitHub API rather than a
local git commit.