Photo Illustration by Thomas Levinson/The Daily Beast/GettyWhen Rosevony Duroseau turned 47 last year, her brother and sister-in-law hosted a small surprise party to celebrate.Dr. Yves Duroseau, M.D., chair of the Department of Emergency Medicine at Manhattan’s Lenox Hill Hospital, and his designer wife, Claude, had about 15 guests over on Sept. 17, 2022—a Saturday evening—for a nine-course dinner in the back garden of their gracious Forest Hills home. The occasion was especially joyous for Rose