Philadelphia coach Brett Brown is a creature of habit. And some of his habits have serious longevity. The Portland, Maine, native has a game-day ritual when he brings his 76ers to town that dates back to his days as a BU student and hoopist. “It’s counter-intuitive, but I run as far as I have to to balance the effect of a cheesesteak at T. Anthony’s,” he said of his finish line restaurant on Commonwealth Avenue. “I do it every time — rain, sleet, snow, beautiful day, doesn’t matter.”