feat(ui): switch stats panel to agreed_any_rank_pct (BE rename)

One-line field rename in the occurrence stats panel to match the backend's
dropped ORDER threshold. Hook type rename + multi-value filter support
landed on the base branch (4a92c0b on #1307).

Co-Authored-By: Claude <noreply@anthropic.com>

Author: 2 people

ui/src/pages/occurrences/occurrence-stats.tsx

@@ -63,7 +63,7 @@ export const OccurrenceStats = ({
             <StatBar label="Verified occurrences" value={data.verified_pct} />
             <StatBar
               label="Human-model agreement rate"
-              value={data.agreed_under_order_pct}
+              value={data.agreed_any_rank_pct}
             />
           </>
         )}