dahling." A trip downstairs yielded the biggest prize -- the spot in the corner of one room where thousands of roach-filled, empty cat-food cans had once upon a time been tossed by Little Edie. And now, that spot is -- yes -- the dining room where Bob Balaban, Lorraine Bracco, Dick Cavett, Henry Kravis, Steve Kroft, Lay McInerney and Christie Brinkley were chowing down on delicious food that, thank…