Agregar sistema de vinculaciones con registros externos de Metabase

- Nuevo schema BD para vinculaciones_externas con constraint único por período
- Cliente Metabase para consultar Ingresos, Carretas, Salidas y Rechazos
- Endpoints API para registros externos (/api/externos/*) y vinculaciones (/api/vinculaciones/*)
- Composable useRegistrosExternos con lógica de vinculación individual y masiva
- Componentes: TablaRegistros, ModalAsignar, ProgressDashboard
- Tab "Externos" en app.vue con sub-tabs y dashboard de progreso
- LotesCard.vue ahora muestra registros vinculados al lote

pwa_assets/manifest.json

@@ -0,0 +1,101 @@
+{
+  "name": "Mi App PWA",
+  "short_name": "MiApp",
+  "description": "Aplicación progresiva generada automáticamente.",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#00000000",
+  "theme_color": "#000000",
+  "icons": [
+    {
+      "src": "icon-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-384x384.png",
+      "sizes": "384x384",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-256x256.png",
+      "sizes": "256x256",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-180x180.png",
+      "sizes": "180x180",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-167x167.png",
+      "sizes": "167x167",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-152x152.png",
+      "sizes": "152x152",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-144x144.png",
+      "sizes": "144x144",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-128x128.png",
+      "sizes": "128x128",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-96x96.png",
+      "sizes": "96x96",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-72x72.png",
+      "sizes": "72x72",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-64x64.png",
+      "sizes": "64x64",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-48x48.png",
+      "sizes": "48x48",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-32x32.png",
+      "sizes": "32x32",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "icon-16x16.png",
+      "sizes": "16x16",
+      "type": "image/png",
+      "purpose": "any"
+    }
+  ]
+}