CAIRO — President Mohamed Morsi agreed on Monday to limit the scope of a sweeping decree he had issued last week that raised his edicts above any judicial review, according to a report by a television network allied with his party. The agreement, reached with top judicial authorities, would leave most of Mr. Morsi’s actions subject to review by the courts, but it appears to preserve a crucial power: protecting the country’s constitutional council from being dissolved by the courts before it finishes its work.