fix(admin): show Reconfigurer WhatsApp when phone exists but token/wabaId missing

Orgs migrated from single-tenant setup have a WhatsAppPhoneNumber record but no
wabaId/systemUserToken in Organization table. Without the token the Meta status
endpoint returns configured:false and WABA shows "Non connecté".

When fetchMetaStatus returns configured:false on an org that already has a phone
number, replace the "En ligne" indicator with an amber "Reconfigurer WhatsApp"
button that re-triggers the Embedded Signup flow to store the correct wabaId and
long-lived token.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/admin/src/pages/ClientsManagementView.tsx

@@ -178,13 +178,22 @@ export default function ClientsManagementView() {
                                             <p className="text-xs text-slate-400">ID: {client.phoneNumbers[0].id}</p>
                                         </div>
                                         <div className="h-10 w-px bg-slate-100"></div>
-                                        <div className="flex items-center gap-2 text-emerald-600">
-                                            <Activity className="w-4 h-4" />
-                                            <span className="font-medium text-xs">En ligne</span>
-                                        </div>
+                                        {metaStatuses[client.id] && !metaStatuses[client.id].loading && !metaStatuses[client.id].configured ? (
+                                            <button
+                                                onClick={() => handleEmbeddedSignup(client.id)}
+                                                className="flex items-center gap-2 bg-amber-500 text-white px-4 py-2 rounded-xl font-semibold hover:bg-amber-600 transition text-xs"
+                                            >
+                                                <AlertTriangle className="w-3.5 h-3.5" /> Reconfigurer WhatsApp
+                                            </button>
+                                        ) : (
+                                            <div className="flex items-center gap-2 text-emerald-600">
+                                                <Activity className="w-4 h-4" />
+                                                <span className="font-medium text-xs">En ligne</span>
+                                            </div>
+                                        )}
                                     </div>
                                 ) : (
-                                    <button 
+                                    <button
                                         onClick={() => handleEmbeddedSignup(client.id)}
                                         className="flex items-center gap-2 bg-indigo-600 text-white px-5 py-2.5 rounded-xl font-semibold hover:bg-indigo-700 transition shadow-lg shadow-indigo-100"
                                     >