05b - add to cart as an admin-user

Number of APIs: 3

1. Retrieving a cart's details by criteria GET {{api_url}}/cart/{{tenant}}/carts?type=shopping&siteCode=main&create=false&saasToken={{customer_token}}&customerId=87413250

2. Adding a product to cart POST {{baseUrl}}/cart/{{tenant}}/carts/61a8a63605f998769314626d/items

3. Creating a new cart POST {{api_url}}/cart/{{tenant}}/carts