A LITTLE MORNING MAGIC   If sunshine was a pastry, it might look something like this. Our Morning Buns  start with the same laminated dough as our croissants — layer upon layer of buttery goodness — but then things get a little wild. Each one is rolled with cinnamon, sugar, and bright, fresh orange zest, baked until the edges caramelize into golden crispness, and finished with a light dusting of sugar that melts into every swirl.   The outside crackles.The inside stays soft a