The lights have finally gone out on this project. In an extraordinary fire sale, the state Power Authority is auctioning off a huge storehouse of unused decorative bridge lights — which were supposed to be part of a $106 million project to brighten up the city’s spans by former Gov. Andrew Cuomo, but which never got installed. With a minimum bid of just $25, the lights are only expected to fetch pennies on the dollar — and leave the state out a massive amount of cash for the failed lighting project, officials told The Post of the sale, which was...