Refine client overview proxy and subscription display

src/web/utils/clientControls.js

@@ -20,7 +20,12 @@ export function formatConnectionDuration(startedAt, now = Date.now()) {
 }
 
 export function subscriptionDomain(subscriptionHost) {
-  return String(subscriptionHost || '').split('/')[0];
+  const value = String(subscriptionHost || '');
+  try {
+    return new URL(value).host;
+  } catch {
+    return value.split('/')[0];
+  }
 }
 
 export function localProxyUrls(port = 8082) {