Katherine Miles sits on the Northwest Trek tram, her face glued to the window. Like any other kid, she’s mesmerized by the fluffy white mountain goat kids squeezed onto a single log by the lake. But unlike a lot of other kids at the wildlife park, she’s also nestling a weighted lap pad on her lap, and her headphones aren’t channeling anything but silence. Twelve-year-old Katherine is one of the first visitors to make use of Northwest Trek’s new sensory-inclusive tools – and the difference it’s making to her Trek experience is huge. “It’s like night and day,” says mom …