A daytime outing on the water ended abruptly when a party boat ran aground on a busy beach shoreline, injuring several passengers and drawing crowds of onlookers as emergency crews responded Sunday afternoon, authorities said.The incident happened shortly after 2:15 p.m. near Seabright Cove, where clear skies and warm temperatures had drawn beachgoers and boaters to the area. According to marine officials, the privately operated party boat was carrying more than 20 passengers and cruising parall