The Dodgers insisted they didn’t need to make a major addition to their lineup ahead of their bid to three-peat as World Series champions next season. But on Thursday, they went ahead and landed the top hitter on the free-agent market anyway. In a blockbuster move that only further reinforces the club’s superteam status, the Dodgers agreed to a deal with Kyle Tucker, a source confirmed, adding a four-time All-Star and the consensus top player in free agency this winter to their already star-