WASHINGTON — The Supreme Court justices seemed divided Monday over a fiercely contested bankruptcy settlement for Purdue Pharma that would funnel billions of dollars into addressing the opioid epidemic in exchange for shielding members of the wealthy Sackler family from related lawsuits. The U.S. Trustee Program, an office in the Justice Department, had challenged the deal for Purdue, the maker of the prescription painkiller OxyContin. It said the agreement violated federal law by guaranteeing s