4bd16af9a5
GET /api/scrapers/data-quality — 4 parallel queries across 200k+ transceiver_verification_evidence rows. Returns: coverage percentages (price 62%, image 68%, details 94%, competitor 2%), all 10 evidence types with counts + avg confidence, 17 robot/scraper contributions, 14-day daily activity time series. Dashboard: coverage progress bars (color-coded thresholds), evidence type table, SVG activity sparkline, robot contributions table.