Josh Hart drilled a three-pointer at the buzzer as the Trail Blazers beat the Heat 110-107 in Miami.  Hart was the hero with his game-winning shot and nearly had a triple-double with 12 points, nine rebounds and eight assists.  Damian Lillard scored 19 in his return from a calf injury.  Anfernee Simons also chipped in with 25 points for Portland, which improved to 7-and-3.  The Blazers visit the Hornets tomorrow night in Charlotte.