feat: implement core platform features including business directory, admin dashboard, authentication, and API infrastructure

admin/src/components/FeaturedModal.tsx

@@ -40,7 +40,7 @@ export default function FeaturedModal({ business }: Props) {
     });
   };
 
-  const handleRemove = () => {
+  const handleRemove = async () => {
     if (confirm("Retirer cet entrepreneur du titre 'Entrepreneur du mois' ?")) {
       startTransition(async () => {
         const result = await removeFeaturedBusiness(business.id);
@@ -48,7 +48,7 @@ export default function FeaturedModal({ business }: Props) {
           toast.success("Titre révoqué");
           setIsOpen(false);
         } else {
-          toast.error(result.error);
+          toast.error(result.error || "Une erreur est survenue lors de la suppression");
         }
       });
     }