OAKLAND, Calif. — A federal jury has decided that Apple didn’t compete unfairly when it sold music players and songs with copy-protection software that was incompatible with rival devices and music from competing online stores. The eight-member jury in U.S. District Court handed Apple a victory this week by rejecting a claim from attorneys for consumers and iPod resellers, who were seeking as much as $1 billion in a class-action lawsuit. The plaintiffs argued that Apple was able to overcharge consumers …