From ideation to execution: Unleashing the power of generative AI in modern digital marketing and customer engagement- A systematic literature review and case study. - Sayeed Haider Salih; Omayma Husain; Refan Mohamed Almohamedh; Hayfaa tajelsier; Aisha Hassan Abdalla Hashim; Hashim Elshafie; Abdelwahed Motwakel (Array, 2026)