541440c357
Universe page aggregates unread topic_message rows per mesh for the viewing user. Counts messages newer than topic_member.last_read_at (or all messages if the viewer never opened the topic) and excludes anything the viewer authored. One JOIN-grouped query, not N+1. Mesh card surfaces the count as a clay-rounded badge to the left of the role chip — matches the per-topic badge style on the mesh detail page so unread is the same visual idiom across the dashboard. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>