Hear the testimony, because it is true: a Houston August does not forgive. It turns green grass brown and turns a two-hour walkthrough into a trial of the soul, and it is into that fire, every morning of fall camp, that Khalil Laufau walks—pads strapped, jaw set, a 290-pound witness to the idea that a man can be forged twice. He was forged once on a rugby pitch in Utah, where, in 2021, he stood inside a national championship game. He is being forged again, for a second straight autumn, in the trenches at TDECU Stadium, where he preaches less with his mouth than with his hands and where the…