Sub-ticket of PLUTO-124 /informes immediate UI fixes (Elazar GO now): (a) wrap bare CohortAndProcedureCards grid (teacher-report.tsx:818) in a titled ReportSection matching sibling sections; (b) CUT 'Moda operador/asistente' cards (mislabeled modal-per-student count, redundant beside Promedio) + remove now-dead computeMode/opCounts plumbing ~1199-1201, keep Promedio. UI-only, post-push audit PTD. Rest of KPI-rework held under parent 121. · pluto