With his team facing yet another daunting postseason challenge, DeNA BayStars manager Daisuke Miura said Friday he is not content to just show up in the Japan Series against the powerhouse Pacific League champion SoftBank Hawks. The best-of-seven series kicks off Saturday at DeNA’s Yokohama Stadium after the Central League’s third-place club won six of eight CL Climax Series road playoff games to advance to the season finale for the first time since its 2017 loss to SoftBank. “We want to go into this with the momentum we had from winning the Climax Series,” said Miura, who pitched for the BayS…