Gunnar Alm now owns a piece of state baseball history. Just not alone. And perhaps not for long. When Alm scored his second run in Friday’s 8-4 win over Hendersonville, the Polk County senior thought he’d set a new state record for most runs scored in a career, his 149th run breaking the old mark of 148 set by West Henderson’s Josh Moore in 2005-2008. Alm scored again in the top of the eighth inning to put his career total at 150 heading into th…