Gavin Newsom’s official calendars show the lefty governor listing zero government business on a staggering 18 taxpayer-funded workdays in the first four months of the year, The California Post has learned. The uber-secretive Newsom — who only finally released his calendars after a monthslong delay that required legal intervention by The Post’s lawyers — marked the 18 non-holiday weekdays as “no official business,” or about one in every four days. The governor’s calendar also includes 53 murky entries only described as “work time,” blocking off the large chunks to tinker on unknown tasks. On Feb. 6, for example, Newsom’s sole...