The 57-year-old Pacifica woman, who allegedly made personal purchases on a company American Express card that totaled $568,000, pleaded not guilty in court Wednesday. Seeny, according to the District Attorney’s Office, charged items such as personal vacation trips, home improvement projects and beauty products on the card during a four-year period while working as the head of human resources for a Foster City medical imaging company. Her jury trial has been set for Jan. 5.