Move the release verifier's npm platform check into scripts/npm-platform.ts and use it when pruning pnpm's bundled packages, so negations, 'any' and invalid fields follow npm. Skip non-directories and name the manifest on invalid fields.
pnpm's npm package carries reflink bindings for darwin-arm64, darwin-x64, win32-arm64 and win32-x64. The primary runtime copied all of them, so the Apple silicon app contained an x86_64 Mach-O module that triggers macOS's Intel app warning. Prune packages whose os/cpu fields exclude the target and bump the payload format.
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