Feat: Agregar soporte para envío de Contacts, Polls y Events

- Backend: Nuevo soporte en endpoint /send para tipos contact, poll, event
- UI: Modales para crear y enviar contactos, encuestas y eventos
- Visualización: Componentes MessagePoll y MessageEvent para mostrar mensajes recibidos
- Tipos: Agregar PollInfo, EventInfo y tipo 'event' a MessageType

app/pages/messages/index.vue

@@ -231,6 +231,9 @@
               :replying-to="replyingTo"
               @send="handleSendMessage"
               @send-voice="handleSendVoice"
+              @send-contact="handleSendContact"
+              @send-poll="handleSendPoll"
+              @send-event="handleSendEvent"
               @cancel-reply="replyingTo = null"
               @typing="handleTyping"
               @recording="handleRecordingPresence"
@@ -647,6 +650,121 @@ const handleRecordingPresence = (isRecording: boolean) => {
   }
 }
 
+// Handle contact send
+interface ContactInfo {
+  displayName: string
+  phoneNumber: string
+  organization?: string
+}
+
+const handleSendContact = async (contacts: ContactInfo[], quotedId?: string) => {
+  if (!selectedInstance.value?.value || !selectedChat.value) return
+
+  try {
+    const instanceId = selectedInstance.value.value
+    const chatId = selectedChat.value.id
+
+    await $fetch(`/api/messages/${instanceId}/${chatId}/send`, {
+      method: 'POST',
+      body: {
+        type: 'contact',
+        contacts,
+        quotedMessageId: quotedId || replyingTo.value?.messageId
+      }
+    })
+
+    replyingTo.value = null
+    messages.value = await $fetch(`/api/messages/${instanceId}/${chatId}`)
+  } catch (e: any) {
+    console.error('Error sending contact:', e)
+    toast.add({
+      title: 'Error de envío',
+      description: e?.data?.message || e?.message || 'Error al enviar el contacto',
+      color: 'error',
+      duration: 5000
+    })
+  }
+}
+
+// Handle poll send
+interface PollData {
+  name: string
+  options: string[]
+  selectableCount: number
+}
+
+const handleSendPoll = async (poll: PollData, quotedId?: string) => {
+  if (!selectedInstance.value?.value || !selectedChat.value) return
+
+  try {
+    const instanceId = selectedInstance.value.value
+    const chatId = selectedChat.value.id
+
+    await $fetch(`/api/messages/${instanceId}/${chatId}/send`, {
+      method: 'POST',
+      body: {
+        type: 'poll',
+        ...poll,
+        quotedMessageId: quotedId || replyingTo.value?.messageId
+      }
+    })
+
+    replyingTo.value = null
+    messages.value = await $fetch(`/api/messages/${instanceId}/${chatId}`)
+  } catch (e: any) {
+    console.error('Error sending poll:', e)
+    toast.add({
+      title: 'Error de envío',
+      description: e?.data?.message || e?.message || 'Error al enviar la encuesta',
+      color: 'error',
+      duration: 5000
+    })
+  }
+}
+
+// Handle event send
+interface EventData {
+  name: string
+  startDate: string
+  endDate?: string
+  description?: string
+  location?: {
+    name?: string
+    address?: string
+    latitude?: number
+    longitude?: number
+  }
+}
+
+const handleSendEvent = async (eventData: EventData, quotedId?: string) => {
+  if (!selectedInstance.value?.value || !selectedChat.value) return
+
+  try {
+    const instanceId = selectedInstance.value.value
+    const chatId = selectedChat.value.id
+
+    await $fetch(`/api/messages/${instanceId}/${chatId}/send`, {
+      method: 'POST',
+      body: {
+        type: 'event',
+        ...eventData,
+        quotedMessageId: quotedId || replyingTo.value?.messageId
+      }
+    })
+
+    replyingTo.value = null
+    messages.value = await $fetch(`/api/messages/${instanceId}/${chatId}`)
+  } catch (e: any) {
+    console.error('Error sending event:', e)
+    toast.add({
+      title: 'Error de envío',
+      description: e?.data?.message || e?.message || 'Error al enviar el evento',
+      color: 'error',
+      duration: 5000
+    })
+  }
+}
+
 // Reload chats for current instance
 const reloadChats = async () => {
   if (!selectedInstance.value?.value) return