- figure data-embed ^youtube$ and data-id ^[A-Za-z0-9_-]{11}$ (the embed
placeholder), img alt with any text, ol start ^[0-9]+$; nothing else
- TestEditorOutputPassesPolicy checks every editor-corpus.json entry byte
for byte with an empty report, plus the negative cases;
TestSanitizeHTMLReport pins the removal report
- CheckHTML documented as a predicate no write path refuses with; README
lists the four additions and the report API