openpanel-analytics
Adds and verifies OpenPanel analytics on Lossless Astro sites and splash pages, deployed on Vercel, GitHub Pages, or both. Covers the production-only Analytics.astro component, the OPENPANEL_CLIENT_ID variable on each host, the OpenPanel "supported domains" setting whose absence silently 401s every event, and a curl-plus-DevTools verification. Use when adding analytics to a site or splash, when a site deployed to a new host or domain, when OpenPanel shows no data, or when the user mentions OpenPanel, analytics, tracking, traffic, or "is anyone visiting".