A 6-week-old infant presents with broad thumbs and broad great toes, postnatal growth deficiency, and distinctive facial features including a beaked nose with the nasal septum extending below the alae nasi, downslanting palpebral fissures, and micrognathia. The infant also has moderate intellectual disability noted on follow-up and a history of feeding difficulties. Genetic testing identifies a pathogenic mutation in CREBBP. Which syndrome does this likely represent?