{"ok":true,"service":"reportkit-demo-api","modes":["live","synthetic","cached"],"research":{"virtual_logical_total":1000000000,"data_kind":"dummy_synthetic","date_range":{"min":"2012-01-01","max":"2026-08-10"},"live_db":"2018 → present (operator_id FK)","archive_db":"2012 → 2017 (operator_code cross-ref)"},"note":"All demo rows are fictional. Free-tier D1 stores a measured sample; synthetic mode exposes 1B virtual rows."}