{"database": "audit", "table": "source_truth", "rows": [["app:scan", 0, null, null, "2026-05-21T20:07:49Z", "manual_seed", "Live cv_scan_app audit forward: packing-station barcode scan events (NADAMOO HID keyboard input via Windows agent). Forward-only since 2026-05-11. No finite API truth.", null, null, null, null, "live", 1440, null]], "columns": ["source", "api_total", "api_oldest", "api_newest", "measured_at", "method", "notes", "event_source", "event_category", "live_event_source", "live_event_category", "mode", "freshness_sla_minutes", "heartbeat_source"], "primary_keys": ["source"], "primary_key_values": ["app:scan"], "units": {}, "query_ms": 1.5832080971449614}