test: regenerate HTML fixtures for sanitized v2 output
Routing v2 HTML output through the nh3 sanitizer normalizes the emitted
markup: the implicit <tbody> wrapper is inserted, the redundant
presentational border="1" table attribute is dropped (the visible
border is preserved via the allowed border CSS), and inline CSS is
re-serialized. Visible text content is unchanged across all fixtures.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
