The bankrupt operator of New York Sports Clubs and Lucille Roberts gyms has received court approval to conduct a speedy chapter 11 sale process, positioning the company to sell itself by next month to a group of lenders and a private-equity firm. The lenders and Tacit Capital LLC last month agreed to serve as the lead bidder, or stalking horse, to acquire assets of Town Sports International Holdings Inc., valuing their deal at about $85 million, the minimum price for other bidders to beat.