Actualizar las alternativas de un artículo

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "filmo_items_alternatives_update",
    "arguments": {
      "itemId": "item_8f2a1c",
      "operations": [
        {
          "alternativeId": "alte_8f2a1c",
          "action": "create",
          "alternative": {
            "itemId": "item_8f2a1c",
            "notes": "<notes>"
          }
        }
      ]
    }
  }
}

{
  "structuredContent": {
    "data": {
      "id": "id_8f2a1c",
      "name": "Example",
      "sku": "<sku>",
      "description": "<description>",
      "orderInfo": "<orderInfo>",
      "ean": "<ean>",
      "itemType": "fixed",
      "stockCalculationMethod": "bulk",
      "collectionId": "coll_8f2a1c",
      "collectionName": "Example",
      "images": [
        "<images>"
      ],
      "salePrice": "1234.50",
      "depositValue": "1234.50",
      "minStock": 1,
      "serializedItemsCount": 1,
      "pricingSettings": {
        "type": "periodPrice",
        "price": "1234.50",
        "period": "hour"
      },
      "insuranceEnabled": true,
      "discountEnabled": true,
      "bufferBefore": 1,
      "bufferBeforeUnit": "hour",
      "bufferAfter": 1,
      "bufferAfterUnit": "hour",
      "physicalProperties": {
        "weight": 1,
        "width": 1,
        "height": 1,
        "length": 1,
        "volume": 1,
        "current": 1,
        "power": 1
      },
      "variants": [
        {
          "variantId": "vari_8f2a1c",
          "variantName": "Example",
          "variantPrice": "1234.50",
          "salePrice": "1234.50",
          "ean": "<ean>"
        }
      ],
      "tags": [
        {
          "id": "id_8f2a1c",
          "name": "Example"
        }
      ],
      "customFields": {
        "key": "<key>"
      },
      "createdAt": "2026-09-01T08:00:00Z",
      "updatedAt": "2026-09-01T08:00:00Z",
      "replacementValue": "1234.50",
      "accessoryIds": [
        "acce_8f2a1c"
      ],
      "alternativeIds": [
        "alte_8f2a1c"
      ]
    },
    "meta": {
      "idempotencyKey": "<the key you sent, or the one the server generated>",
      "rateLimit": {
        "limit": 120,
        "remaining": 119,
        "reset": 42
      }
    }
  }
}