Before the Denver Nuggets take the court Thursday against the Miami Heat in Game 1 of the NBA Finals, they will have racked up a bunch of assists, all for the local economy. Bookings were up at Denver hotels heading into the Nuggets’ first-ever appearance in the NBA championship. Bars and restaurants were gearing up for the crowds of fans expected to teem through Lower Downtown on their way to Ball Arena or watch parties. “I’m anticipating it’s going to be pretty rock ‘n’ roll in here” on Thursday, said Ryan Swick, manager of Jackson’s LODO at 1520 20th St. Tiffany Owen, general manager for The Maven and The Rally hotels in LoDo, said reservations and tickets for watch parties at The Rally Hotel in McGregor Square are going fast.