Taylor Lally is a blue-eyed, burly, bespectacled man, with a beard about halfway to the the full Duck Dynasty look. And just past midnight on a Monday evening this summer, he’s hawking candy bars inside a purple-painted room no bigger than 300 square feet, with a disco ball hanging from the ceiling. It’s not exactly Willy Wonka and the Chocolate Factory. The thirty-something is an online auction maestro, broadcasting to a few dozen people competing to buy confections with the swipe of a finger. Mini auctions like this one on WhatNot, the liveshopping app, will help Lally cross one million dollars in sales this year, he said. “We’re live…