- Each comment is a bordered card with a distinct header bar (author name,
clickable relative timestamp, hover-to-reveal delete) and a body section
- Subtle spine line connects comments in the avatar column
- Composer matches card style: same header bar for Write/Preview tabs,
transparent textarea inside, submit row with border-top
- Comment timestamps default to relative, click to toggle absolute
(mirrors sidebar date toggle pattern)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2a6090e473