refactor: update to yarn@v4, migrate to vitest, switch to typescript, add tests

[MarshallOfSound]

Each commit was done one by one to ensure functionality during the rewrite. Also validated it locally with the top ~50 URLs hit in the last 24 hours.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​esbuild/​aix-ppc64@​0.25.10
	@​esbuild/​android-arm64@​0.25.10
	@​esbuild/​darwin-arm64@​0.25.10
	@​esbuild/​darwin-x64@​0.25.10
	@​esbuild/​freebsd-arm64@​0.25.10
	@​esbuild/​freebsd-x64@​0.25.10
	@​esbuild/​linux-arm@​0.25.10
	@​esbuild/​linux-arm64@​0.25.10
	@​esbuild/​linux-ia32@​0.25.10
	@​esbuild/​linux-loong64@​0.25.10
	@​esbuild/​linux-mips64el@​0.25.10
	@​esbuild/​linux-ppc64@​0.25.10
	@​esbuild/​linux-riscv64@​0.25.10
	@​esbuild/​linux-s390x@​0.25.10
	@​esbuild/​linux-x64@​0.25.10
	@​esbuild/​openbsd-arm64@​0.25.10
	@​esbuild/​openbsd-x64@​0.25.10
	@​esbuild/​sunos-x64@​0.25.10
	@​esbuild/​win32-arm64@​0.25.10
	@​esbuild/​win32-ia32@​0.25.10
	@​esbuild/​win32-x64@​0.25.10
	@​esbuild/​netbsd-arm64@​0.25.10
	@​esbuild/​netbsd-x64@​0.25.10
	@​rollup/​rollup-linux-arm64-musl@​4.52.4
	@​rollup/​rollup-android-arm64@​4.52.4
	@​rollup/​rollup-freebsd-arm64@​4.52.4
	@​rollup/​rollup-android-arm-eabi@​4.52.4
	@​rollup/​rollup-linux-arm-musleabihf@​4.52.4
	@​rollup/​rollup-win32-arm64-msvc@​4.52.4
	@​rollup/​rollup-darwin-arm64@​4.52.4
	@​rollup/​rollup-linux-arm64-gnu@​4.52.4
	@​rollup/​rollup-linux-loong64-gnu@​4.52.4
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[socket-security]

Warning

Review the following alerts detected in dependencies.

According to your organization's Security Policy, it is recommended to resolve "Warn" alerts. Learn more about Socket for GitHub.

Action	Severity	Alert  (click "▶" to expand/collapse)
Warn		generator-function@2.0.1 has Unstable ownership. Author: ljharb From: yarn.lock → npm/generator-function@2.0.1 ℹ Read more on: This package | This alert | What is unstable ownership? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Try to reduce the number of authors you depend on to reduce the risk to malicious actors gaining access to your supply chain. Packages should remove inactive collaborators with publishing rights from packages on npm. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/generator-function@2.0.1. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

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[notion-workspace]

update.electronjs.org