Fix: Correct exporterExcel method call parameters

The exporterExcel method signature requires 11 parameters but was being
called with only 3. This caused a compilation error during deployment.

Fixed by providing all required parameters:
- format, associationId, statut, type
- dateAdhesionDebut, dateAdhesionFin
- colonnesExport
- inclureHeaders, formaterDates, inclureStatistiques
- motDePasse

Most parameters are set to null or default values for now.

src/main/java/dev/lions/unionflow/client/view/MembreListeBean.java

@@ -537,9 +537,20 @@ public class MembreListeBean implements Serializable {
     
     public void exporterMembres() {
         try {
-            byte[] excelData = membreService.exporterExcel(formatExport, null, 
-                searchCriteria.getStatut() != null && !searchCriteria.getStatut().isEmpty() 
-                    ? searchCriteria.getStatut() : null);
+            byte[] excelData = membreService.exporterExcel(
+                formatExport,  // format
+                null,  // associationId
+                searchCriteria.getStatut() != null && !searchCriteria.getStatut().isEmpty()
+                    ? searchCriteria.getStatut() : null,  // statut
+                null,  // type
+                null,  // dateAdhesionDebut
+                null,  // dateAdhesionFin
+                null,  // colonnesExport
+                true,  // inclureHeaders
+                true,  // formaterDates
+                false, // inclureStatistiques
+                null   // motDePasse
+            );
             
             // Téléchargement du fichier Excel via JSF
             FacesContext facesContext = FacesContext.getCurrentInstance();