CHICAGO — There are two ways to look at the Astros’ Chris Carter He’s a streaky, limited .221 hitter with an MLB-leading 105 strikeouts in 240 at-bats, posting just three more total bases than K’s. Or Carter, 26, is a promising slugger with a team-leading 15 home runs, on pace for 32 during his first season as an everyday player. A rebuilding club (28-47) in need of long-term American League power sees the latter. Carter (6-4, 245 pounds) was the lone Astro to seriously touch Chicago Cubs righthanded starter Matt Garza on Friday during a 3-1 loss in an interleague matchup at Wrigley Field between two of baseball’s worst teams. [...]