curl --request GET \
  --url https://api.ai2fin.com/api/category-sets/categories/from-sets \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "categories": [
    {
      "id": "<string>",
      "name": "<string>",
      "icon": "<string>",
      "color": "<string>",
      "isTaxDeductible": true,
      "taxCategory": "<string>",
      "defaultGstRate": 123
    }
  ],
  "grouped": {},
  "count": 123
}