The published tarball ships lib/binding/napi-9-darwin-unknown-arm64 on every
platform, so a real Windows host has both it and the downloaded win32 binding
— the classify-everything gate threw on the darwin dir and killed every
Windows pack. Stage only bindings naming the target platform (classify still
rejects impostors), stop copyGlobByExt from recursing into lib/binding, and
add a version tripwire so a get-windows bump fails the build until the
lib/windows.js rewrite is re-verified.
Also from review: the renderer answers window.read.respond with empty text
when the IPC invoke rejects (older shell / main-side throw) instead of
stalling the tool's 30s timeout; the tool schema discloses that sibling
Hermes windows are skipped; docs gain read_window_below in both references.
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