SANTA CLARA, Calif. – The 49ers parlayed one of the most dramatic comebacks in NFL history into an NFC Championship crown Sunday, thus sending them on a road trip to Las Vegas, site of Super Bowl LVIII. Their 34-31 triumph over the Detroit Lions required a comeback from, of all scores, a 24-7 halftime deficit. Interestingly, the 1957 Lions trailed 24-7 at halftime to the 49ers before rallying for a 31-27, NFC playoff win at Kezar Stadium before Detroit went on to claim the NFL’s championship at home. Sunday’s comeback matched the biggest in NFC Championship Game history, which, you may recall,…