After a month of standing in Home Depot parking lots in Chicago hoping to find work, Rayni Cuadrado had finally found a day job. The 29-year-old from Maracaibo, Venezuela, moved metal scrap and took measurements Thursday inside a decimated church in North Lawndale. He had once dreamed of studying art in his home country, he said, but due to the political and social unrest there, he instead walked to the United States with his daughter to find work. Like countless other groups of migrants and undocumented workers across the city, Cuadrado has been getting up at 5 a.m. every day for the past mon…