[PWGJE] jetCrossSectionEfficiency: cascade variants + hybrid-MC handling (#16546)

Co-authored-by: Joonsuk Bae <monkeybae@kiaf-ui.sdfarm.kr>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: ALICE Action Bot <alibuild@cern.ch>

Author: 4 people