[claude] Phase 2: move portal health probe to data/loaders (#411) (#462)

modules/data/loaders.js

@@ -18,6 +18,25 @@ export async function fetchSoulMd() {
   }
 }
 
+// --- Portal health probes ---
+export async function checkPortalHealth(portals) {
+  for (const portal of portals) {
+    if (!portal.destination?.url) {
+      portal.status = 'offline';
+      continue;
+    }
+    try {
+      await fetch(portal.destination.url, {
+        mode: 'no-cors',
+        signal: AbortSignal.timeout(5000),
+      });
+      portal.status = 'online';
+    } catch {
+      portal.status = 'offline';
+    }
+  }
+}
+
 // --- portals.json ---
 export async function fetchPortals() {
   const res = await fetch('./portals.json');