Capture docker inspect, /data modes, supervisorctl, and entrypoint markers
on failure (stderr DEBUG816647 lines + debug-816647.log) so release CI can
show why valid_hostname_starts / startup_processes_running die with empty logs.
Co-Authored-By: Composer <noreply@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
mixeme