The final verdict on the Philadelphia 76ers trade for James Harden won’t come for months — maybe even years. Until then, every moment Harden and Philadelphia’s MVP-frontrunner Joel Embiid spend on the court together will be something of a Rohrsarch test. Some will see chemistry, others calamity — sometimes both will be visible in the same game. There was plenty to glean from Harden’s debut for the Sixers Friday night in a 133-102 blowout win over the Minnesota Timberwolves. But the enduring image from this night, the one that jumps out from behind The Beard, was the bright smile on Harden’s face. “[I’m] extremely happy,” Harden said postgame. “Extremely happy.”