Implementar sistema completo de trazabilidad de lotes

- Agregar PostgreSQL 16 con esquema completo
- Crear API endpoints para lotes y operaciones
- Implementar UI con Nuxt UI (tablas, formularios, trazabilidad)
- Agregar datos de ejemplo del flujo completo
- Documentar sistema en PLAN_TRAZABILIDAD.md

nuxt4/package-lock.json

@@ -15,6 +15,7 @@
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         "eslint": "^9.37.0",
         "nuxt": "^4.1.3",
+        "pg": "^8.13.1",
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         "vue": "^3.5.22",
         "vue-router": "^4.5.1"
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+        "pg-pool": "^3.10.1",
+        "pg-protocol": "^1.10.3",
+        "pg-types": "2.2.0",
+        "pgpass": "1.0.5"
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+      "license": "MIT",
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+        "postgres-bytea": "~1.0.0",
+        "postgres-date": "~1.0.4",
+        "postgres-interval": "^1.1.0"
+      },
+      "engines": {
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+    "node_modules/pgpass": {
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@@ -16460,6 +16550,45 @@
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       }
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+      "license": "MIT",
+      "engines": {
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+    "node_modules/postgres-bytea": {
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+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/postgres-date": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/postgres-date/-/postgres-date-1.0.7.tgz",
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+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/postgres-interval": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/postgres-interval/-/postgres-interval-1.2.0.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "xtend": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
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     "node_modules/prebuild-install": {
       "version": "7.1.3",
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@@ -18164,6 +18293,15 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/split2": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/split2/-/split2-4.2.0.tgz",
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+      "license": "ISC",
+      "engines": {
+        "node": ">= 10.x"
+      }
+    },
     "node_modules/srvx": {
       "version": "0.8.16",
       "resolved": "https://registry.npmjs.org/srvx/-/srvx-0.8.16.tgz",
@@ -21343,6 +21481,15 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/xtend": {
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+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
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