An aerial view of housing in Barcelona, Spain, Jan. 21, 2025. Spain faces a housing shortfall of about 755,000 homes, according to the Bank of Spain, which has predicted that number could rise to 1 million homes by 2028. (Edu Bayer/The New York Times) By JASON HOROWITZ and CARLOS BARRAGÁN An 87-year-old woman in Spain whose eviction prompted large protests will be allowed to return home, her representatives said earlier this week, and the Spanish government announced proposals to protect…