Use /tmp for signature verification on macOS while preserving runner temp behavior elsewhere. Cover long and canonical OS temp paths and regenerate action bundles.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 32d31c8d-ddbc-4e57-a5c3-f70588fef3f3