Inside a Wrigleyville rooftop owner's fight with the Cubs

CHICAGO -- On a recent night at Wrigley Field, the view from beyond left field was almost perfect. There were the iconic bleachers ... the ivy on the outfield walls ... the field bathed in light. Pete Crow-Armstrong was batting, and the near sellout crowd was chanting: "M-V-P!" But Aidan Dunican, standing on the rooftop of his four-story apartment building across the street, was pointing out what he couldn't see -- mainly pieces of the infield because of a gauzy, translucent screen affixed to the left-field grandstand that obscured his view, and that of the 50 or so patrons who…