Mamdani is going to town on the annoyance economy

Adam Gray/Bloomberg via Getty Images; Mark Lennihan/AP Images; Alyssa powell/BI Navigating New York City's economy can feel like a gauntlet of minor indignities. Selling ice cream, for some reason, requires two different permits. Want to quit your gym? You may have to send a certified letter by mail. Oh, and before you haul your belongings to that storage unit, you'd better read the fine print real carefully to see how much of a tease that teaser rate is. Zohran Mamdani is sweating this kind…