Delivery in progress (photo: Ed Reed/Mayoral Photography Office) By Mark Chiusano The post-Independence Day missive from Mayor Eric Adams had notes of grandeur: the city was announcing a new “Department of Sustainable Delivery.” Funding was on the way. Once again, New York was taking the reins to regulate the nascent gig economy — a timely move, since the field has shaped how New Yorkers shop and experience the city, as companies turned streetscapes into workplaces for tens of thousand...