TOKYO — Sega Sammy is selling its resort complex Seagaia to Fortress Investment Group of the U.S., the Japanese entertainment company said Friday. Tokyo-based Sega Sammy Holdings, the company behind the “Sonic the Hedgehog” video games, said it will sell all its shares in Phoenix Resort Co., which operates Seagaia in Miyazaki, southwestern Japan. Also Friday, Sega Sammy reported its …