Jin Tao Wu has survived Japan’s invasion of China, the rise of the Communist Party and the massacres of the Cultural Revolution. Now, thousands of miles and many decades later, the 93-year-old sits in a beige-walled public housing apartment in Manhattan’s Chelsea neighborhood, confronting what he sees as the biggest crisis of his life. The New York City Housing Authority has told Wu that he and his 90-year-old wife, Qiong Zhong, who has dementi…