Called “the world’s first shopping mall,” Istanbul’s Grand Bazaar entrances millions of visitors annually with its myriad displays of exotic jewels and spices, elaborate carpets for sale and constant hustle.   But hardly even hidden behind the smiles of its stalls’ fez-capped salesmen and the city’s ubiquitous scent of döner kebab, a much more sinister business of dark international money laundering takes place. A $30 million seizure of smuggled jewels and diamonds from the market last April —