Fix: Radar auth check and data loading

frontend/src/app/terminal/radar/page.tsx

@@ -66,7 +66,7 @@ interface SearchResult {
 // ============================================================================
 
 export default function RadarPage() {
-  const { isAuthenticated, domains, addDomain, user, subscription, logout } = useStore()
+  const { isAuthenticated, isLoading: authLoading, domains, addDomain, user, subscription, logout, checkAuth } = useStore()
   const { toast, showToast, hideToast } = useToast()
   
   const [hotAuctions, setHotAuctions] = useState<HotAuction[]>([])
@@ -81,6 +81,11 @@ export default function RadarPage() {
   
   // Mobile Menu State
   const [menuOpen, setMenuOpen] = useState(false)
+  
+  // Check auth on mount
+  useEffect(() => {
+    checkAuth()
+  }, [checkAuth])
 
   // Load Data
   const loadDashboardData = useCallback(async () => {
@@ -99,9 +104,15 @@ export default function RadarPage() {
   }, [])
 
   useEffect(() => {
-    if (isAuthenticated) loadDashboardData()
+    // Wait for auth check to complete, then load data
-    else setLoadingData(false)
+    if (!authLoading) {
-  }, [isAuthenticated, loadDashboardData])
+      if (isAuthenticated) {
+        loadDashboardData()
+      } else {
+        setLoadingData(false)
+      }
+    }
+  }, [authLoading, isAuthenticated, loadDashboardData])
 
   // Search
   const handleSearch = useCallback(async (domainInput: string) => {