ORLANDO, Fla. — Two local affiliates of Habitat for Humanity International are getting a record $9.25 million donation from global philanthropist and author MacKenzie Scott, allowing them to build new homes, rehabilitate older ones, educate prospective home buyers and keep low-income seniors safely housed. Scott, the ex-wife of Amazon founder Jeff Bezos and one of the company’s first employees, pledged in 2019 to give away most of her wealth to charity. She has made several massive gifts since then, including a $436 million donation announced this week for Habitat for Humanity International a…