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

nuxt.config.ts

@@ -0,0 +1,127 @@
+// https://nuxt.com/docs/api/configuration/nuxt-config
+export default defineNuxtConfig({
+  ssr: true,
+  compatibilityDate: '2025-07-15',
+  devtools: { enabled: true },
+  css: ['~/assets/css/main.css'],
+  modules: ['@nuxt/image', '@nuxt/ui', '@vite-pwa/nuxt'],
+
+  // Performance optimizations
+  experimental: {
+    payloadExtraction: false,
+    viewTransition: true
+  },
+
+  // Vite config
+  vite: {
+    server: {
+      hmr: {
+        clientPort: 443,
+        protocol: 'wss'
+      },
+      allowedHosts: [
+        '.nucleoriofrio.com',
+        'whatsapp.nucleoriofrio.com'
+      ]
+    },
+    build: {
+      cssCodeSplit: true,
+      rollupOptions: {
+        output: {
+          manualChunks: {
+            'vendor-ui': ['@nuxt/ui']
+          }
+        }
+      }
+    }
+  },
+
+  app: {
+    baseURL: process.env.BASE_URL || '/',
+    head: {
+      title: 'WhatsApp Nucleo',
+      link: [
+        { rel: 'icon', type: 'image/png', href: '/icons/icon-192.png' },
+        { rel: 'apple-touch-icon', sizes: '192x192', href: '/apple-touch-icon.png' },
+        { rel: 'manifest', href: '/manifest.webmanifest' }
+      ],
+      meta: [
+        { name: 'theme-color', content: '#075e54' },
+        { name: 'apple-mobile-web-app-capable', content: 'yes' },
+        { name: 'mobile-web-app-capable', content: 'yes' },
+        { name: 'apple-mobile-web-app-status-bar-style', content: 'black-translucent' }
+      ]
+    }
+  },
+
+  nitro: {
+    baseURL: process.env.BASE_URL || '/',
+    experimental: {
+      openAPI: true
+    },
+    routeRules: {
+      '/manifest.webmanifest': {
+        headers: {
+          'Content-Type': 'application/manifest+json',
+          'Cache-Control': 'public, max-age=3600'
+        }
+      },
+      '/sw.js': {
+        headers: {
+          'Service-Worker-Allowed': '/',
+          'Cache-Control': 'public, max-age=0'
+        }
+      }
+    }
+  },
+
+  pwa: {
+    registerType: 'autoUpdate',
+    strategies: 'generateSW',
+    manifestFilename: 'manifest.webmanifest',
+    manifest: {
+      id: '/?app=whatsapp',
+      name: 'WhatsApp Nucleo',
+      short_name: 'WhatsApp',
+      description: 'Gestiona multiples instancias de WhatsApp desde un panel centralizado',
+      start_url: '/',
+      scope: '/',
+      display: 'standalone',
+      background_color: '#075e54',
+      theme_color: '#075e54',
+      launch_handler: {
+        client_mode: 'navigate-existing'
+      },
+      icons: [
+        { src: '/icons/icon-192.png', sizes: '192x192', type: 'image/png' },
+        { src: '/icons/icon-512.png', sizes: '512x512', type: 'image/png' },
+        { src: '/icons/icon-192-maskable.png', sizes: '192x192', type: 'image/png', purpose: 'maskable' },
+        { src: '/icons/icon-512-maskable.png', sizes: '512x512', type: 'image/png', purpose: 'maskable' }
+      ]
+    },
+    workbox: {
+      globPatterns: ['**/*.{js,css,html,png,svg,webp,ico,json,woff2}'],
+      navigateFallback: undefined,
+      cleanupOutdatedCaches: true,
+      maximumFileSizeToCacheInBytes: 4 * 1024 * 1024
+    },
+    client: {
+      installPrompt: true,
+      periodicSyncForUpdates: 3600
+    },
+    devOptions: {
+      enabled: process.env.NODE_ENV === 'development',
+      type: 'module'
+    }
+  },
+
+  runtimeConfig: {
+    // Server-side only
+    databaseUrl: process.env.DATABASE_URL || 'postgresql://whatsapp:password@localhost:5432/whatsapp',
+    masterApiKey: process.env.MASTER_API_KEY || '',
+    // Public (client + server)
+    public: {
+      authentikUrl: process.env.NUXT_PUBLIC_AUTHENTIK_URL || 'https://authentik.nucleoriofrio.com'
+    }
+  }
+})