Facilitating Search by more than one category

Certain products may have multiple levels of categories. While adapting to the Beckn Protocol, flattening the multiple levels of categories into a single category helps simplify the entire process. When we merge multiple categories into a single category, we may have to use multiple categories to search for items. Currently category is an object with scope to search by a single product. Though we can use category_ids under item, that only accepts IDs and we lose the ability to search by category name.

Allowing searching by multiple categories will greatly enhance the searching capabilities and this one change will make the specifications compatible with different eCommerce and marketplace platforms.