feat: WhatsApp Nucleo con Nuxt 4 + Baileys v7

Reemplazo completo de Evolution API por implementación directa con Baileys.

Características:
- Dashboard completo con Nuxt UI v4
- Soporte para múltiples instancias de WhatsApp
- Conexión via QR code o pairing code
- Persistencia de mensajes en PostgreSQL
- API REST para integraciones externas
- Webhooks con firma HMAC
- SSE para actualizaciones en tiempo real
- Autenticación con Authentik

server/api/instances/[id]/connect.post.ts

@@ -0,0 +1,54 @@
+/**
+ * POST /api/instances/:id/connect
+ * Connect an instance (generates QR code)
+ */
+import { query } from '../../../utils/database'
+import { baileysManager } from '../../../services/baileys/manager'
+
+export default defineEventHandler(async (event) => {
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const id = getRouterParam(event, 'id')
+
+  // Check if instance exists
+  const result = await query<{ id: string; status: string }>(
+    'SELECT id, status FROM instances WHERE id = $1',
+    [id]
+  )
+
+  if (result.rows.length === 0) {
+    throw createError({ statusCode: 404, message: 'Instance not found' })
+  }
+
+  const instance = result.rows[0]
+
+  // Don't connect if already connected
+  if (instance.status === 'connected') {
+    throw createError({ statusCode: 400, message: 'Instance already connected' })
+  }
+
+  // Start connection
+  try {
+    await baileysManager.connect(id!)
+
+    // Wait a bit for QR to generate
+    await new Promise(resolve => setTimeout(resolve, 2000))
+
+    const qrCode = baileysManager.getQRCode(id!)
+    const status = baileysManager.getStatus(id!)
+
+    return {
+      success: true,
+      status: status?.status || 'connecting',
+      qrCode
+    }
+  } catch (error) {
+    throw createError({
+      statusCode: 500,
+      message: `Failed to connect: ${(error as Error).message}`
+    })
+  }
+})

server/api/instances/[id]/disconnect.post.ts

@@ -0,0 +1,35 @@
+/**
+ * POST /api/instances/:id/disconnect
+ * Disconnect an instance
+ */
+import { query } from '../../../utils/database'
+import { baileysManager } from '../../../services/baileys/manager'
+
+export default defineEventHandler(async (event) => {
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const id = getRouterParam(event, 'id')
+
+  // Check if instance exists
+  const result = await query<{ id: string }>(
+    'SELECT id FROM instances WHERE id = $1',
+    [id]
+  )
+
+  if (result.rows.length === 0) {
+    throw createError({ statusCode: 404, message: 'Instance not found' })
+  }
+
+  try {
+    await baileysManager.disconnect(id!)
+    return { success: true, status: 'disconnected' }
+  } catch (error) {
+    throw createError({
+      statusCode: 500,
+      message: `Failed to disconnect: ${(error as Error).message}`
+    })
+  }
+})

server/api/instances/[id]/index.delete.ts

@@ -0,0 +1,41 @@
+/**
+ * DELETE /api/instances/:id
+ * Delete an instance
+ */
+import { query } from '../../../utils/database'
+import { baileysManager } from '../../../services/baileys/manager'
+import { clearAuthState } from '../../../services/baileys/auth-state'
+
+export default defineEventHandler(async (event) => {
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const id = getRouterParam(event, 'id')
+
+  // Check if instance exists
+  const result = await query<{ id: string }>(
+    'SELECT id FROM instances WHERE id = $1',
+    [id]
+  )
+
+  if (result.rows.length === 0) {
+    throw createError({ statusCode: 404, message: 'Instance not found' })
+  }
+
+  // Disconnect if connected
+  try {
+    await baileysManager.disconnect(id!)
+  } catch (error) {
+    // Ignore disconnect errors
+  }
+
+  // Clear auth state
+  await clearAuthState(id!)
+
+  // Delete from database (cascades to related tables)
+  await query('DELETE FROM instances WHERE id = $1', [id])
+
+  return { success: true }
+})

server/api/instances/[id]/index.get.ts

@@ -0,0 +1,53 @@
+/**
+ * GET /api/instances/:id
+ * Get instance details
+ */
+import { query } from '../../../utils/database'
+import { baileysManager } from '../../../services/baileys/manager'
+
+interface InstanceRow {
+  id: string
+  name: string
+  phone_number: string | null
+  status: string
+  qr_code: string | null
+  pairing_code: string | null
+  last_connected_at: Date | null
+  created_by: string
+  created_at: Date
+}
+
+export default defineEventHandler(async (event) => {
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const id = getRouterParam(event, 'id')
+
+  const result = await query<InstanceRow>(
+    `SELECT id, name, phone_number, status, qr_code, pairing_code,
+            last_connected_at, created_by, created_at
+     FROM instances WHERE id = $1`,
+    [id]
+  )
+
+  if (result.rows.length === 0) {
+    throw createError({ statusCode: 404, message: 'Instance not found' })
+  }
+
+  const instance = result.rows[0]
+  const liveStatus = baileysManager.getStatus(instance.id)
+
+  return {
+    id: instance.id,
+    name: instance.name,
+    phoneNumber: instance.phone_number,
+    status: liveStatus?.status || instance.status,
+    qrCode: liveStatus?.qrCode || instance.qr_code,
+    pairingCode: liveStatus?.pairingCode || instance.pairing_code,
+    lastConnectedAt: instance.last_connected_at,
+    createdBy: instance.created_by,
+    createdAt: instance.created_at
+  }
+})

server/api/instances/[id]/pairing-code.post.ts

@@ -0,0 +1,69 @@
+/**
+ * POST /api/instances/:id/pairing-code
+ * Request a pairing code for connection without QR
+ */
+import { query } from '../../../utils/database'
+import { baileysManager } from '../../../services/baileys/manager'
+
+interface PairingCodeBody {
+  phoneNumber: string
+}
+
+export default defineEventHandler(async (event) => {
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const id = getRouterParam(event, 'id')
+  const body = await readBody<PairingCodeBody>(event)
+
+  if (!body.phoneNumber?.trim()) {
+    throw createError({ statusCode: 400, message: 'Phone number is required' })
+  }
+
+  // Clean phone number (remove +, spaces, dashes)
+  const cleanPhone = body.phoneNumber.replace(/[^0-9]/g, '')
+
+  // Check if instance exists
+  const result = await query<{ id: string; status: string }>(
+    'SELECT id, status FROM instances WHERE id = $1',
+    [id]
+  )
+
+  if (result.rows.length === 0) {
+    throw createError({ statusCode: 404, message: 'Instance not found' })
+  }
+
+  const instance = result.rows[0]
+
+  if (instance.status === 'connected') {
+    throw createError({ statusCode: 400, message: 'Instance already connected' })
+  }
+
+  try {
+    // Connect with pairing code mode
+    await baileysManager.connect(id!, true, cleanPhone)
+
+    // Wait for pairing code
+    await new Promise(resolve => setTimeout(resolve, 5000))
+
+    const pairingCode = baileysManager.getPairingCode(id!)
+    const status = baileysManager.getStatus(id!)
+
+    if (!pairingCode) {
+      throw new Error('Failed to generate pairing code')
+    }
+
+    return {
+      success: true,
+      code: pairingCode,
+      status: status?.status || 'pairing'
+    }
+  } catch (error) {
+    throw createError({
+      statusCode: 500,
+      message: `Failed to request pairing code: ${(error as Error).message}`
+    })
+  }
+})

server/api/instances/[id]/qr.get.ts

@@ -0,0 +1,34 @@
+/**
+ * GET /api/instances/:id/qr
+ * Get current QR code for an instance
+ */
+import { query } from '../../../utils/database'
+import { baileysManager } from '../../../services/baileys/manager'
+
+export default defineEventHandler(async (event) => {
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const id = getRouterParam(event, 'id')
+
+  // Check if instance exists
+  const result = await query<{ id: string; qr_code: string | null; status: string }>(
+    'SELECT id, qr_code, status FROM instances WHERE id = $1',
+    [id]
+  )
+
+  if (result.rows.length === 0) {
+    throw createError({ statusCode: 404, message: 'Instance not found' })
+  }
+
+  // Get live QR from manager
+  const qrCode = baileysManager.getQRCode(id!)
+  const status = baileysManager.getStatus(id!)
+
+  return {
+    qrCode: qrCode || result.rows[0].qr_code,
+    status: status?.status || result.rows[0].status
+  }
+})

server/api/instances/[id]/status.get.ts

@@ -0,0 +1,36 @@
+/**
+ * GET /api/instances/:id/status
+ * Get instance connection status
+ */
+import { query } from '../../../utils/database'
+import { baileysManager } from '../../../services/baileys/manager'
+
+export default defineEventHandler(async (event) => {
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const id = getRouterParam(event, 'id')
+
+  // Check if instance exists
+  const result = await query<{ id: string; status: string; phone_number: string | null }>(
+    'SELECT id, status, phone_number FROM instances WHERE id = $1',
+    [id]
+  )
+
+  if (result.rows.length === 0) {
+    throw createError({ statusCode: 404, message: 'Instance not found' })
+  }
+
+  const instance = result.rows[0]
+  const liveStatus = baileysManager.getStatus(id!)
+
+  return {
+    instanceId: id,
+    status: liveStatus?.status || instance.status,
+    phoneNumber: liveStatus?.phoneNumber || instance.phone_number,
+    hasQR: !!liveStatus?.qrCode,
+    hasPairingCode: !!liveStatus?.pairingCode
+  }
+})

server/api/instances/index.get.ts

@@ -0,0 +1,42 @@
+/**
+ * GET /api/instances
+ * List all instances
+ */
+import { query } from '../../utils/database'
+import { baileysManager } from '../../services/baileys/manager'
+
+interface InstanceRow {
+  id: string
+  name: string
+  phone_number: string | null
+  status: string
+  last_connected_at: Date | null
+  created_at: Date
+}
+
+export default defineEventHandler(async (event) => {
+  // Check auth
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const result = await query<InstanceRow>(
+    `SELECT id, name, phone_number, status, last_connected_at, created_at
+     FROM instances
+     ORDER BY created_at DESC`
+  )
+
+  // Enrich with live status from manager
+  return result.rows.map(row => {
+    const liveStatus = baileysManager.getStatus(row.id)
+    return {
+      id: row.id,
+      name: row.name,
+      phoneNumber: row.phone_number,
+      status: liveStatus?.status || row.status,
+      lastConnectedAt: row.last_connected_at,
+      createdAt: row.created_at
+    }
+  })
+})

server/api/instances/index.post.ts

@@ -0,0 +1,48 @@
+/**
+ * POST /api/instances
+ * Create a new instance
+ */
+import { query } from '../../utils/database'
+
+interface CreateInstanceBody {
+  name: string
+}
+
+interface InstanceRow {
+  id: string
+  name: string
+  phone_number: string | null
+  status: string
+  created_at: Date
+}
+
+export default defineEventHandler(async (event) => {
+  // Check auth
+  const username = getHeader(event, 'x-authentik-username')
+  if (!username) {
+    throw createError({ statusCode: 401, message: 'Unauthorized' })
+  }
+
+  const body = await readBody<CreateInstanceBody>(event)
+
+  if (!body.name?.trim()) {
+    throw createError({ statusCode: 400, message: 'Name is required' })
+  }
+
+  const result = await query<InstanceRow>(
+    `INSERT INTO instances (name, created_by)
+     VALUES ($1, $2)
+     RETURNING id, name, phone_number, status, created_at`,
+    [body.name.trim(), username]
+  )
+
+  const instance = result.rows[0]
+
+  return {
+    id: instance.id,
+    name: instance.name,
+    phoneNumber: instance.phone_number,
+    status: instance.status,
+    createdAt: instance.created_at
+  }
+})