The salvaged commits drop the cpSync/rmSync imports, but stageGetWindowsInto
landed on main after the PR was opened and still called both, so the module
threw ReferenceError on every platform (7 vitest failures on the cherry-picked
head). Route its six sites through copyFileSync/removeDirSync so get-windows
staging survives the same non-ASCII profile paths as node-pty.
preserveRollbackBackup had the same rmSync no-op as cleanStaleAppOutDir: a
surviving .bak makes renameSync fail, so the previous working build gets wiped
instead of kept as rollback material. Same existsSync -> removeDirSync fallback.
Earlier fixes for the same crash: #60480 (@liuhao1024), #61832 (@danilofalcao),
#76211, #103458, #109273, #111590.
Co-authored-by: liuhao1024 <liuhao1024@users.noreply.github.com>
Co-authored-by: danilofalcao <danilofalcao@users.noreply.github.com>