Category: core_functionality Severity: high
The mission calls out 'revenue dashboards' and 'subscription analytics' as Sales & Revenue features. The existing billing overview component (billing-overview.tsx) shows MRR, active customers, past-due count, and outstanding — a start, but the router only exposes aggregate stats. There are no time-series MRR charts, no cohort retention tables, no ARR growth tracking, no expansion/contraction revenue breakdowns, and no subscriber lifecycle funnel.