SAN DIEGO — You can’t dress like them, even if you were willing to don the required undergarments. You can’t dine like them, unless you have a generous staffing budget and an over-achieving metabolism. (So! Many! Cakes!) And you can’t duel like them, no matter how much you loathe your neighbor and their infernal leaf-blower. As much as you may love a day of lounging and plotting and an evening of quadrilles and bodice-ripping, you cannot live like the mansion-dwelling le bon ton aristocrats of Netflix’s delightful, binge-worthy series “Bridgerton.” But thanks to a new book from former San Dieg…