LOS ANGELES — Shai Gilgeous-Alexander scored 35 points, Chet Holmgren made a tiebreaking dunk with 32.8 seconds to play, and the Oklahoma City Thunder swept the Los Angeles Lakers out of the second round of the NBA playoffs with a 115-110 victory in Game 4 on Monday night.Ajay Mitchell scored 10 of his 28 points in the frantic final period as the Thunder overcame the Lakers’ tenacious effort and improved to 8-0 in the playoffs with their toughest victory of the postseason.“We’ve done our job so far, that’s all it really means,” Gilgeous-Alexander said. “We’ve gone out there, we’ve executed, we’ve played at a high level and we’ve been able to win eight tough games against really good opponents. That’s all it means. Nothing is guaranteed.”LeBron James had 24 points and 14 rebounds in the final game of the unprecedented 23rd season for the top scorer in NBA history, but he missed a driving bank shot with 20 seconds left that would have put the Lakers ahead.The 41-year-old James has repeatedly said he hasn’t decided whether to play next season, so there was no ceremony or momentousness around this game. Instead, the Lakers desperately tried to extend their year, only to lose to Oklahoma City for the eighth time this season.“I don’t know what the future holds for me, obviously, as it stands right now, tonight,” James said. “I’ve got a lot of time. I’ll go back and recalibrate with my family and talk with them, and when the time goes, obviously you guys will know what I decide to do.”Austin Reaves scored 27 points before missing a tying 3-point attempt with eight seconds le …