Webhooks: Completar integracion backend-frontend

- Inicializar webhookDispatcher en plugin de servidor
- Conectar pagina de webhooks con API
- Agregar selector de instancias en formulario
- Corregir bug en toast de handleSaved

server/plugins/baileys.ts

@@ -1,7 +1,8 @@
 /**
- * Nitro plugin to initialize Baileys manager on server start
+ * Nitro plugin to initialize Baileys manager and Webhook dispatcher on server start
  */
 import { baileysManager } from '../services/baileys/manager'
+import { webhookDispatcher } from '../services/webhooks/dispatcher'
 
 export default defineNitroPlugin(async () => {
   console.log('[Plugin] Initializing Baileys Manager...')
@@ -12,7 +13,11 @@ export default defineNitroPlugin(async () => {
   try {
     await baileysManager.initialize()
     console.log('[Plugin] Baileys Manager initialized successfully')
+
+    // Initialize webhook dispatcher after baileys manager
+    await webhookDispatcher.initialize()
+    console.log('[Plugin] Webhook Dispatcher initialized successfully')
   } catch (error) {
-    console.error('[Plugin] Failed to initialize Baileys Manager:', error)
+    console.error('[Plugin] Failed to initialize:', error)
   }
 })