LGTM

frontend/src/App.tsx

@@ -52,6 +52,10 @@ function PageFallback() {
   return <div className="flex-1 bg-warm-50 dark:bg-navy-950" />;
 }
 
+function unavailableAuthAction(): never {
+  throw new Error('Authentication actions are not available in this render mode');
+}
+
 function pageToPath(page: Page, inviteCode?: string): string {
   switch (page) {
     case 'dashboard':
@@ -80,7 +84,10 @@ function pageToPath(page: Page, inviteCode?: string): string {
     case 'account':
       return '/account';
     case 'invite':
-      return `/invite/${inviteCode || ''}`;
+      if (!inviteCode) {
+        throw new Error('Cannot build invite path without an invite code');
+      }
+      return `/invite/${inviteCode}`;
     default:
       return '/';
   }
@@ -190,7 +197,7 @@ export default function App() {
       setShowLicenseSuccess(true);
     }
     // Always refresh auth on startup to pick up server-side subscription changes
-    refreshAuth().catch(() => {});
+    refreshAuth().catch(() => { });
   }, []); // eslint-disable-line react-hooks/exhaustive-deps
 
   const savedSearches = useSavedSearches(user?.id ?? null);
@@ -263,7 +270,9 @@ export default function App() {
       window.history.replaceState(
         { page: activePage },
         '',
-        pageToPath(activePage) + window.location.search + window.location.hash
+        pageToPath(activePage, inviteCode ?? undefined) +
+        window.location.search +
+        window.location.hash
       );
     }
     const handlePopState = (e: PopStateEvent) => {
@@ -275,7 +284,6 @@ export default function App() {
           setPendingInfoFeature(e.state.infoFeature);
         }
       } else {
-        // Fall back to deriving page from pathname
         const parsed = pathToPage(window.location.pathname);
         page = parsed?.page || 'home';
         setActivePage(page);
@@ -326,9 +334,9 @@ export default function App() {
           user={null}
           theme={theme}
           screenshotMode
-          onLoginClick={() => {}}
-          onRegisterClick={() => {}}
-          onLicenseGranted={() => {}}
+          onLoginClick={unavailableAuthAction}
+          onRegisterClick={unavailableAuthAction}
+          onLicenseGranted={unavailableAuthAction}
         />
       </Suspense>
     );
@@ -340,19 +348,21 @@ export default function App() {
         <MapPage
           features={features}
           poiCategoryGroups={poiCategoryGroups}
-          initialFilters={urlState.filters || {}}
+          initialFilters={urlState.filters}
           initialViewState={initialViewState}
-          initialPOICategories={urlState.poiCategories || new Set()}
-          initialTab={urlState.tab || 'area'}
+          initialPOICategories={urlState.poiCategories}
+          initialTab={urlState.tab}
           initialLoading={initialLoading}
           theme={theme}
           pendingInfoFeature={null}
-          onClearPendingInfoFeature={() => {}}
-          onNavigateTo={() => {}}
+          onClearPendingInfoFeature={() => { }}
+          onNavigateTo={() => { }}
           screenshotMode
           ogMode={isOgMode}
           initialTravelTime={urlState.travelTime}
           shareCode={urlState.share}
+          onLoginClick={unavailableAuthAction}
+          onRegisterClick={unavailableAuthAction}
         />
       </Suspense>
     );
@@ -365,8 +375,7 @@ export default function App() {
         onPageChange={navigateTo}
         theme={theme}
         onToggleTheme={toggleTheme}
-        onExport={exportState?.onExport ?? null}
-        exporting={exportState?.exporting ?? false}
+        exportState={activePage === 'dashboard' ? exportState : null}
         onSaveSearch={activePage === 'dashboard' && user ? () => setShowSaveModal(true) : null}
         savingSearch={savedSearches.saving}
         user={user}
@@ -452,10 +461,10 @@ export default function App() {
           <MapPage
             features={features}
             poiCategoryGroups={poiCategoryGroups}
-            initialFilters={mapUrlState.filters || {}}
+            initialFilters={mapUrlState.filters}
             initialViewState={initialViewState}
-            initialPOICategories={mapUrlState.poiCategories || new Set()}
-            initialTab={mapUrlState.tab || 'area'}
+            initialPOICategories={mapUrlState.poiCategories}
+            initialTab={mapUrlState.tab}
             initialLoading={initialLoading}
             theme={theme}
             pendingInfoFeature={pendingInfoFeature}