List a bookable product's reservation offerings

Returns the live reservation offerings of a published bookable product in the merchant's display order, behind the required storefront publishable key and the dedicated offering discovery kill-switch. Each item is a closed buyer-safe shape containing a `roff_` wire id, label, server price, effective duration, party-size bounds, and position. An offering whose minimum party size exceeds the storefront party maximum is EXCLUDED from this list: a buyer can never satisfy it (the storefront caps `partySize`), so it is not surfaced. Products with no live (bookable) offerings return an empty list. Missing, unpublished, non-bookable, or cross-tenant products, and products with no configured resource pool, return the same 404 without an existence oracle. > **Note:** This endpoint requires the e-commerce feature to be enabled on your site.