HOUSTON — LeBron James scored 29 points, including a tying 3-pointer with 13 seconds left in regulation, Marcus Smart had eight points in overtime and the Los Angeles Lakers took advantage of a Houston Rockets team missing Kevin Durant for a 112-108 win Friday night to take a 3-0 lead in the Western Conference first-round series.The Lakers rallied from a six-point deficit with under 30 seconds remaining and can sweep the series Sunday night in Houston.“It’s tough to win on the road in the playoffs and even without KD they’re a great basketball team,” coach JJ Redick said. “And that was a huge test for us, especially in that moment when we’re down six.”Los Angeles opened overtime with a 6-2 run, highlighted by a 3-pointer from Smart to take a 107-103 lead. Smart made two free throws with 35.5 seconds to go to make it 111-105. Reed Sheppard made a 3-pointer to get Houston within three with less than 30 seconds left in overtime but Smart made 1 of 2 free throws to push the lead to 112-108. The 41-year-old James played more than 45 minutes Friday night. He said with top scorers Luka Doncic and Austin Reaves out with injuries he has no choice but to do whatever he can.“Everyone has to do a little bit more because of how much we’re missing,” James said. “It’s a challenge for all of us and just trying to figure it out together.”Smart added 21 points and 10 assists, and Rui Hachimura added 22 points for the …