LAS VEGAS — For an understanding of Christian Braun’s perspective on the job opening that’s been publicly presumed his, just look to the baseline at Cox Pavilion. Sitting between teammates Zeke Nnaji and Peyton Watson, Braun was an enthusiastic front-row spectator at Denver’s NBA Summer League opener Friday night. So much so that he was careful not to step aside for an interview as the second half was beginning, requesting rather to wait for the stoppage at the end of the third quarter. That’s when he explained that his appearance in Las Vegas is about more than just supporting his brother Parker, who’s suiting up for the Nuggets at Summer League. “I would have been here anyway,” Braun told The Denver Post.