The product_id provided by the customer must NOT change in any way, since the SIM API is getting the unaltered version as input and it is required to also return the original version
De-Duplication
Whenever a product has variations (size, color) but the same image URL, the SIM API needs to remove those except when a customer explicitly wants also to return variations. [Status Quo V3: results with the same similarity score are skipped]