PHILADELPHIA — The fight over legalized sports gambling in New Jersey returned Tuesday to a federal appeals court, where attorneys for the state and the country’s major sports leagues spent nearly an hour parsing language in a decades-old federal statute and in recent court rulings. At issue: Whether a 2014 New Jersey law repealing prohibitions against sports gambling violates the 1992 federal Professional and Amateur Sports Protection Act, which says states cannot “sponsor, operate, advertise …