A woman who alleges the Nigerian consulate cheated her out of nearly $500 does not have a case for breach of contract, a federal appeals court held Monday.The 7th U.S. Circuit Court of Appeals did not rule on the merits of the allegations, but found it did not have jurisdiction in what amounted to a lawsuit against a foreign nation.The court declined to revive the lawsuit Chinyere U. Nwoke filed accusing the consulate of …