SAN FRANCISCO — As a player, fans got to know Buster Posey as a tremendous leader. In the clubhouse. Of a pitching staff. As the most important player on three World Series winners. They must be wondering where that guy was as Posey, now the team’s top baseball executive, clammed up during a heated 15-minute news conference inside the home dugout Tuesday. Confronted with questions about the Giants’ LGBTQ+ Pride Night controversy , Posey had nothing to say. He didn’t offer his support to the