resuelto el problema, el post para crear customer creaba pero no emitia respuesta, se deja en 2 segundos y se usa un get por email para traer la data

index.js

@@ -11,6 +11,25 @@ import { makeSimSend } from "./src/controllers/sim.js";
 import { makeEvolutionWebhook } from "./src/controllers/evolution.js";
 import { makeGetConversationState } from "./src/controllers/conversationState.js";
 
+async function configureUndiciDispatcher() {
+  // Node 18+ usa undici debajo de fetch. Esto suele arreglar timeouts “fantasma” por keep-alive/pooling.
+  // Nota: si el módulo `undici` no está disponible, no rompemos el arranque (solo logueamos warning).
+  try {
+    const { setGlobalDispatcher, Agent } = await import("undici");
+    setGlobalDispatcher(
+      new Agent({
+        connections: 10,
+        pipelining: 0,
+        keepAliveTimeout: 10_000,
+        keepAliveMaxTimeout: 10_000,
+      })
+    );
+    console.log("[http] undici global dispatcher configured");
+  } catch (e) {
+    console.warn("[http] undici dispatcher not configured:", e?.message || e);
+  }
+}
+
 const app = express();
 app.use(cors());
 app.use(express.json({ limit: "1mb" }));
@@ -73,6 +92,7 @@ app.get("/", (req, res) => {
 const port = process.env.PORT || 3000;
 
 (async function boot() {
+  await configureUndiciDispatcher();
   TENANT_ID = await ensureTenant({ key: TENANT_KEY, name: TENANT_KEY.toUpperCase() });
   app.listen(port, () => console.log(`UI: http://localhost:${port} (tenant=${TENANT_KEY})`));
 })().catch((err) => {