Covers everything shipped since the #007 handoff: the json/csv kinds,
.xlsx conversion, public sharing, syntax highlighting/table styling, and
the #008-#012 fixes. Prioritizes round-3 probe suggestions by risk, with
sharing (the new unauthenticated surface) and the #010 quota race (no
automated coverage) called out as the highest-value targets.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
