feat: Add Catalogues page for displaying, searching, and filtering promotional catalogues by enseigne.

frontend/src/pages/Catalogues.jsx

@@ -27,7 +27,12 @@ export default function Catalogues() {
     const loadEnseignes = async () => {
         try {
             const response = await axios.get(`${API_BASE}/enseignes`);
+            if (Array.isArray(response.data)) {
                 setEnseignes(response.data);
+            } else {
+                console.error('API response for enseignes is not an array:', response.data);
+                setEnseignes([]);
+            }
         } catch (error) {
             console.error('Error loading enseignes:', error);
             toast.error('Erreur lors du chargement des enseignes');
@@ -52,8 +57,13 @@ export default function Catalogues() {
             }
 
             const response = await axios.get(API_BASE, { params });
+            if (response.data && Array.isArray(response.data.data)) {
                 setCatalogues(response.data.data);
                 setPagination(prev => ({ ...prev, total: response.data.pagination.total }));
+            } else {
+                console.error('API response for catalogues is invalid:', response.data);
+                setCatalogues([]);
+            }
         } catch (error) {
             console.error('Error loading catalogues:', error);
             toast.error('Erreur lors du chargement des catalogues');