After a historic ticker-tape parade, the New York Knicks’ championship celebration moved to City Hall on Thursday, where Mayor Zohran Mamdani presented the NBA champions with keys to the city and praised generations of fans who waited more than five decades for another title.    Regulars from Madison Square Garden’s celebrity row — including Spike Lee, Mariska Hargitay and Timothée Chalamet — were among those who scored one of the hottest tickets in town, joining invited guests and everyday New Yorkers on the steps of City Hall.    The invited crowd also reflected the city’s wider basketball community, from Parks Department workers who repair public hoops to CUNY wheelchair basketball players, young NYCHA athletes, lifelong older Knicks fans, and a city technology worker hired in 1973, the last time the team won a title. Balladoli Mieses, a 32-year-old Good Samaritan credited with helping prevent destruction during last week’s Knicks celebrations, was also among the guests.    Read the...