Add scout constellation mode for APK venue persona packs.

Cluster 3+ scout_report hits on the same SSID within 10 minutes; server infers airport/campus/retail venue class and pushes persona spread_policy. Emberwake weather-map merges active scout biomes. Includes agent, server API, and Vitest coverage.

server/web/src/pages/EmberwakePage.tsx

@@ -22,6 +22,8 @@ import { usePresence } from '../context/PresenceContext';
 import AlsoHere from '../components/Presence/AlsoHere';
 import ComradeAvatar from '../components/Presence/ComradeAvatar';
 import SupplyChainExportWizard from '../components/Emberwake/SupplyChainExportWizard';
+import SubnetAutopsyCard from '../components/Atlas/SubnetAutopsyCard';
+import { parseSeerSubnetAutopsy } from '../help/subnetAutopsy';
 import { HelpTip } from '../components/HelpTip';
 import './EmberwakePage.css';
 import '../components/Presence/Presence.css';
@@ -63,6 +65,7 @@ export default function EmberwakePage() {
   const [exportBusy, setExportBusy] = useState(false);
   const [siteName, setSiteName] = useState('my-blog');
   const [notesBusy, setNotesBusy] = useState(false);
+  const [autopsySubnet, setAutopsySubnet] = useState('');
   const typingTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
   const typingActiveRef = useRef(false);
 
@@ -115,6 +118,12 @@ export default function EmberwakePage() {
     void load().catch(() => {});
   }, [load]);
 
+  useEffect(() => {
+    if (!latestMessage || latestMessage.type !== 'seer_events') return;
+    const ev = parseSeerSubnetAutopsy(latestMessage.payload);
+    if (ev?.prefix) setAutopsySubnet(ev.prefix);
+  }, [latestMessage]);
+
   const liveTelemetry = useMemo(() => aggregateCampaignTelemetry(wsAgents), [wsAgents]);
   const maxLiveHashrate = useMemo(() => maxTelemetryHashrate(liveTelemetry), [liveTelemetry]);
 
@@ -242,6 +251,8 @@ export default function EmberwakePage() {
 
       <AlsoHere page="/emberwake" />
 
+      {autopsySubnet && <SubnetAutopsyCard subnet={autopsySubnet} />}
+
       <section
         className="spread-section spread-section--ember operator-deck-card operator-interactive emberwake-primary-block"
         aria-labelledby="ew-setup-heading"