506ad9711d
Code-review feedback on Task 1: the _HTML suffix makes the 'this is raw HTML, do not escape' contract obvious at every call site. Cheap to do now (zero consumers); would be 8 diffs once Tasks 4-6 wire the constant into the type forms. Plan updated in lockstep so Task 4 references the new name. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>