The guests array in reservation endpoints now includes two new boolean fields to identify guest type within a reservation:

• is_child – indicates whether the guest is booked as a child
• is_infant – indicates whether the guest is booked as an infant

Both fields are returned only when the guest object belongs to a reservation, consistent with the existing is_primary flag.

Affected endpoints: GET /reservations, GET /reservations/{id}, GET /reservations/checked_in, GET /reservations/due_in