LIMA, Peru — Sitting atop the world’s largest oil reserves and vociferously advocating for his “Bolivarian” brand of socialist revolution, Hugo Chavez’s re-election as president of Venezuela has implications that stretch far beyond his country’s borders. One of the US’s most outspoken critics, “el Comandante” is now set to continue his role as a thorn in Washington’s side — whoever is in the White House — while using Venezuelan crude and petrodollars to push his radical agenda across Latin America.