(Callas enshrouded in reporters. Credit: Maurice Zalewski/ADOC photos)   Vignettes of onstage outtakes are aplenty. Daily shots of the soprano, less so. Here’s a peek into Maria’s typical excursions—culinary and sartorial; social and cultural—on a work(not really)less day. Coruscating like the crystalline intrusion of a cocktail dress’ brooch asparkle in a parking lot; a spotlight pooling blindness onto “Poliuto”‘s Paolina; {…}