(Bloomberg) -- Tatyana Bakalchuk made billions selling everything from brooms to bridal gowns on her online marketplace. Now Russia’s richest woman is making a surprise pivot: to helping insulate the economy from sanctions by building an alternative to the global payment system major Russian banks were excluded from.Most Read from BloombergAt Blackstone’s $339 Billion Property Arm, the Honeymoon Is OverCar Dealers Reel From Cyberattack on $1.2 Trillion MarketCDK Tells Car Dealers Their Systems W