[po-et]

Fixes #695.

The Windows wrappers replace exec and execFile without their custom promisify hooks. Promise consumers consequently receive a stdout string instead of { stdout, stderr }. exec also re-enters execFile with an options-object overload that the wrapper mishandled.

Delegate to Node's native hooks after applying windowsHide, rather than copying the hooks unchanged and bypassing the no-console policy. This preserves Promise.child, buffered output, failure diagnostics, and an explicit windowsHide: false.

Verified on macOS:

• vitest run: 181 files, 1,639 tests passed.
• Targeted regressions: 27 passed on Node 24/26 and Electron's Node runtime; all three new cases fail against the old implementation.
• Type checking, build and git diff --check passed.

Native Windows application verification remains outstanding. Tests used an independent copy of the existing locked dependencies; a fresh npm ci in the isolated checkout did not complete.