East Shore’s seawall, where locals stroll across the bay from twinkling downtown sights, just got a new set of lamps along the promenade. The old streetlamps sprayed light all over, glaring into neighbors’ homes, said Alderwoman Arlene DePino. So she and the Parks Commission pushed for classier, old-fashioned lanterns. They debuted a few weeks ago to neighbors’ delight: “They’re really amazing: They shine down, but they really don’t glare,” said East Shore’s Tina Doyle, applauding the new “necklace” at a neighborhood meeting Tuesday.