0.1.2

• Markdown in comments — comment text now renders Markdown (code spans, bold, links, lists) in both the margin and the sidebar.
• Long comments collapse to a "Show more" preview; one click opens the full thread and the reply box. A thread taller than the screen shows "Open in sidebar" instead (its bottom is unreachable inline).
• Margin polish — cards slide off the top edge as you scroll instead of sticking; clicking a card no longer scrolls the document; the reply box reveals and focuses when you open a card; expand/collapse animates smoothly.
• Comment highlights now render inside tables in Reading view. (Live Preview can't highlight inside its table widget — a documented limitation.)