A 7-year-old girl from rural Rajasthan presents with bilateral eye discharge and mild conjunctival injection for the past 3 weeks. Her mother reports that two younger siblings have similar symptoms. On examination, the child has follicles on the upper tarsal conjunctiva and fine linear scars on the conjunctiva. Giemsa stain of conjunctival scrapings shows intracytoplasmic inclusions within epithelial cells. What is the most likely diagnosis?