Whitelist: plates added to /whitelist are silently ignored on detection — no clip, no frames, no DB entry. Manageable via /whitelist page or from the event detail page per-event. Stats: /stats shows all known plates ranked by passage count, with first/last seen dates and one-click whitelist toggle. Navigation links added to the index header. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>