Fixed ssh_sudo in US-07 section where chown ran without sudo because
&& in the command broke the sudo pipe. With set -e, this silently killed
the script. Wrapped compound commands in sudo bash -c to keep everything
under sudo. All file sharing tests pass bidirectionally over Tor.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>