SEOUL, South Korea — South Korea’s new President Lee Jae-myung vowed Wednesday to restart dormant talks with North Korea and bolster a trilateral partnership with the U.S. and Japan, as he laid out key policy goals for his single, five-year term. Lee, who rose from childhood poverty to become South Korea’s leading liberal politician vowing to fight inequality and corruption, began his term earlier Wednesday, hours after winning a snap election that was triggered in April by the removal of then-