- Add 'mr-number' to SCREENING_SERVICES + widen CHECK via new migration
- New shared/screening/mr-number.ts (manual-ready checkMrNumber with guidance for app reports)
- Admin /screening/check now accepts optional result/rawResponse for mr-number/manual; creates rep events on denied
- my ClientDetail Screening tab: selectable mr-number option, conditional result+raw notes form (paste from app), help text
- Ties directly to existing reputation/status filters (most useful client filter per user)
- Docs update; scoped commit only our paths
(automation via android emu + vision extraction is follow-on on plum; data model enables it immediately)