docs(home): record slow-network acceptance

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

frontend/src/hooks/use-billing-panel.ts

@@ -84,7 +84,6 @@ export function useBillingPanel(input: {
   readonly initialTab: BillingPaneTab;
 }) {
   const seedAccount = input.account;
-  const [accountError, setAccountError] = useState("");
   const [paymentPackages, setPaymentPackages] = useState<MembershipProduct[]>([]);
   const [paymentEnabled, setPaymentEnabled] = useState(false);
   const [packagesError, setPackagesError] = useState("");
@@ -160,7 +159,8 @@ export function useBillingPanel(input: {
   }, []);
 
   useEffect(() => {
-    void fetchPackages();
+    const timer = window.setTimeout(() => void fetchPackages(), 0);
+    return () => window.clearTimeout(timer);
   }, [fetchPackages]);
 
   useEffect(() => {
@@ -294,7 +294,6 @@ export function useBillingPanel(input: {
 
   return {
     account: toBillingAccount(seedAccount),
-    accountError,
     activeSubscription,
     createPayment,
     currentProductCode,