Pin all @swc/core platform binaries as optionalDependencies

[bdehamer]

Summary

Declares every supported @swc/core-* native binary in the root package.json so that package-lock.json records entries for all platforms, not just the one that ran npm install.

Problem

Without this, contributors and CI runners on a different OS/arch than whoever last regenerated the lockfile hit Bindings not found errors when running the test suite — every Jest suite fails to transform because @swc/core can't find a native binary for the current platform.

This is a known npm behaviour: a regenerated lockfile only includes the optional dep matching the host platform, even though @swc/core declares all of them as optionalDependencies.

Fix

Add all 9 platform binaries (darwin/linux/win × arm64/x64, plus musl and ia32 variants) as optionalDependencies at the root, pinned to the same version (1.5.0) that @swc/jest resolves @swc/core to. npm still only installs the binary matching the current platform at install time, but every platform's entry is now recorded in the lockfile.

Verification

• rm -rf node_modules && npm install only installs @swc/core-darwin-arm64 locally
• package-lock.json now contains entries for all 9 platforms
• npm test — all 96 suites / 715 tests pass

[changeset-bot]

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Latest commit: de2a841

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