KANSAS CITY – Seven innings is getting to be the norm for Matthew Boyd. The Cubs’ front office got aggressive at the trade deadline and added two starters to the top of the rotation. But Boyd, the 2025 All-Star lefty, is showing they might have already had an ace, the type of pitcher they can be confident giving the ball for Game 1 of a playoff series. Boyd’s latest gem was seven innings of two-run ball in the Cubs’ 10-2 drubbing of the Royals o…