Drill: 8 states: one table component, all 8 states (loading skeleton, empty, error, partial, filtered-empty, sorted, selected, overflow). Each state must be correct.

Interpretation: Building a rail-interchange setout register (Conemaugh & Allegheny Railway, Kiski Junction agent's desk) as one 9-column car table switchable through all 8 states via a state console with keyboard shortcuts and URL deep links. Constraints: describe-first dataset with derived KPIs and audit flags, counterfactual relief counts on filtered-empty, WCAG-clamped semantics, single indigo accent contracted to interactive/selected only. Aesthetic: light operator-console register in the Stripe/Linear dashboard lineage (cool #f7f8f9 paper, Inter 450/650, JetBrains Mono tnum/zero/liga-off).