How I rebuilt Astro slug pages after AdSense flagged three sites for scaled content abuse

Three weeks ago I described how AdSense rejected my three directory sites because they were deployed on *.vercel.app subdomains . The fix was straightforward: add custom domains, redirect, resubmit. I did that. The domains are live. On May 11th I got the results of the resubmission. The domain filter cleared. The content filter didn't. AdSense cited "scaled content abuse / low value content." That's the harder rejection to fight because it requires actually changing how the pages work, not just