PARIS — Olympic boxing champion Imane Khelif has filed a legal complaint in France for online harassment after a rain of criticism and false claims about her sex during the Paris Olympics, her lawyer said Sunday. Khelif won gold Friday in the women’s welterweight division, becoming a new hero in her native Algeria and bringing global attention to women’s boxing. The complaint was filed Friday with a special unit in the Paris prosecutor’s office for combating online hate speech, alleging “