WELLFLEET — By day, she baked for locals and summer visitors at a pair of popular Cape Cod cafes. At night, she pulled her car into a nearby parking lot and tucked into a sleeping bag, trying to stay out of sight.Victoria, who asked that her last name not be used, slept in her car for seven months over the last year, from the height of the Cape’s annual tourism boom in July through the depths of the regional hibernation in February.