Photo slots + admin page: place any upload in the strip or a live slot, sign up in place, brand links home

docker/frontend/src/App.tsx

@@ -290,8 +290,8 @@ export function Workspace() {
   // Recipes made in this session, guest ones included. A guest's copy lives
   // here and nowhere else, so reloading the page is what deletes it.
   const [created, setCreated] = useState<Recipe[]>([]);
-  // null = closed. The landing's register link is /app?auth=1, so it opens the
-  // dialog straight on the sign-up tab.
+  // null = closed. /app?auth=1 opens the studio's dialog straight on the sign-up
+  // tab; the landing page runs the same dialog in place instead of linking here.
   const [authMode, setAuthMode] = useState<'login' | 'signup' | null>(() =>
     (new URLSearchParams(window.location.search).has('auth') ? 'signup' : null));
 
@@ -1113,6 +1113,7 @@ export function Workspace() {
         onExport={exportPhoto}
         onSave={saveRecipe}
         onAuth={() => setAuthMode('login')}
+        onSignup={() => setAuthMode('signup')}
         onLogout={async () => {
           await api.logout().catch(() => undefined);
           setUser(null);