SAN DIEGO — Every spring training deserves a Tony Gwynn story — such as the one from 25-plus years ago, when Mr. Padre untracked a young Rockies hitter who last month learned he’ll get his own bronze bust. Knowing Todd Helton was having a hard time in his second big league season, Gwynn chatted up the former first-round pick and corrected a flaw. How do we know Gwynn assisted Helton, despite the two being on different teams? Because Helton mentioned Gwynn’s technical pointers on the day he found out he was voted into the Baseball Hall of Fame. “Tony said, ‘Todd, where do you look when you’re l…