~anthropic/claude-sonnet-latest → B (8:2)

Side B fixes a real security vulnerability (XSS via unsanitized Reddit selftext_html) using ammonia, with tests verifying script/attribute stripping while preserving benign markup—a durable, necessary fix. Side A is a speculative refactor (selector-based morphing, reusing entity_section in vote compare) that removes working vote-compare-specific markup/CSS and introduces a stray malformed match-arm pipe, with unclear net benefit and no tests.