VAVUNIYA — In less than 24 hours, Rohini Selvaruban would leave her country for the first time. Her recruiter had called that morning in September 2022 to say her flight was booked. She didn’t complain about the short notice; this was her family’s one chance to escape poverty. She packed three pairs of jeans, T-shirts, a comfortable dress, some underwear and toiletries. She had 50,000 Sri Lankan rupees ($168), borrowed from her sister, in her purse. The next morning, a recruiter put her on a flight to Oman, a wealthy Gulf nation where Sri Lankan women often migrate to work as maids.The Interna…