Check Products Splits

curl --request GET \
  --url https://server26-dot-royalti-project.uc.r.appspot.com/checklist/productsplits \
  --header 'Authorization: Bearer <token>'

{
  "count": 89,
  "productsplits": [
    {
      "productId": "p1b2c3d4-e5f6-7890-1234-567890abcdef",
      "productTitle": "Greatest Hits Album",
      "upc": "123456789012",
      "splits": [
        {
          "userId": "u1b2c3d4-e5f6-7890-1234-567890abcdef",
          "userName": "Main Artist",
          "percentage": 60
        },
        {
          "userId": "u9e8d7c6-b5a4-3210-9876-543210fedcba",
          "userName": "Featured Artist",
          "percentage": 40
        }
      ]
    }
  ]
}