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Neil
37dbb6cf6e
* fix(windows): prune the unpatched conpty prebuild by header, not host arch `prunePackagedNodePty` deleted the published `prebuilds/win32-<arch>/conpty.node` only when `electronArch === process.arch`. That proxy stood in for "build/Release holds an addon this slice can load", and it is false for the arm64 slice cross-built on an x64 Windows host — a rebuild that DOES emit a correct arm64 addon. That slice shipped the unpatched prebuild. Nothing loads it today: `verifyPackagedConptyBreakawayMarker` resolves the addon the way node-pty's loader does, so the patched `build/Release` wins and the release passes correctly. But the loader swallows every require failure and falls through, so an AV quarantine or a missing dependency on `build/Release` hands the pane to that unpatched prebuild — the silent downgrade the gate exists to close, with the binary still sitting in the package. Read the PE `Machine` field instead of guessing, reusing `readPeMachine` from the verifier's `windows-pe-machine.cjs` so prune and verifier ask one question. A missing, truncated or non-PE `build/Release` reads as unloadable and keeps the prebuild, which is what the true cross-host case needs: packaging Windows from macOS leaves no Windows binary in `build/Release`, and removing the prebuild there would leave the package with no ConPTY at all. Mutation-proven: restoring the `electronArch === process.arch` guard fails exactly the two new rows in packaged-node-pty-prebuild-prune. * docs(windows): note the cross-arch conpty slice is real but not yet built