The WIZARD of MADISON

Suit up before stepping inside Giorgio Armani's new uptown Oz.

- ERIK MAZA

The invitation called for black tie. Eyebrows were raised-for a fashion party? T But few dared disobey instructions from the chairman of the board. That would be Giorgio Armani, who touched down in New York City last fall to stage a mic drop of a runway show coinciding with the opening of an Upper East Side compound to rival any Gilded Age mansion. There, on the corner of Madison Avenue and East 65th Street, is a 12-story colossus that runs the gamut of his universe-from Armani/Dolci sweets to made