fix: reset mocks between tests and improve message validation

src/server.ts

@@ -53,11 +53,13 @@ export class WebhookServer {
 
   private static async handleMessageUpsert(data: any) {
     // Basic message validation
-    if (!data?.key?.remoteJid || !data.message) return;
+    if (!data?.key?.remoteJid || !data.message || !data.message.conversation) return;
 
-    // Forward to command service if applicable
+    // Forward to command service only if:
+    // 1. It's a text message (has conversation field)
+    // 2. Starts with /tarea command
     const messageText = data.message.conversation;
-    if (messageText?.startsWith('/tarea')) {
+    if (typeof messageText === 'string' && messageText.trim().startsWith('/tarea')) {
       const responses = await CommandService.handle({
         sender: data.key.participant,
         groupId: data.key.remoteJid,

tests/unit/server.test.ts

@@ -3,8 +3,12 @@ import { WebhookServer } from '../../src/server';
 import { ResponseQueue } from '../../src/services/response-queue';
 
 // Mock the ResponseQueue
-const mockAdd = mock(() => Promise.resolve());
+let mockAdd: any;
+
+beforeEach(() => {
+  mockAdd = mock(() => Promise.resolve());
   ResponseQueue.add = mockAdd;
+});
 
 describe('WebhookServer', () => {
   const envBackup = process.env;