type: Specifies the type of resource returned. Always "inventory" for this endpoint.
count: Total number of inventory records returned in the data array.
roomTypeId: Identifier of the room type for which the inventory data applies.
data: An array of inventory entries, each representing availability for a specific date.
date: The calendar date (YYYY-MM-DD) for which availability is reported.
available: The number of units of the specified room type available on that date.