Fix all broken links: absolute URLs, blog images, comment reply cleanup

public/_redirects

@@ -129,4 +129,9 @@
 # Catch-all for any remaining WordPress ?p= encoded URLs
 /blog/index.html%3F* /blog 301
 
+# Multi-segment .html strip (Cloudflare /*.html only matches single-segment)
+/:a/:b.html /:a/:b 301
+/:a/:b/:c.html /:a/:b/:c 301
+/:a/:b/:c/:d.html /:a/:b/:c/:d 301
+
 # Doc/API legacy path redirects