Students on the Oregon Coast build underwater robots that compete on the national level.Robotics coach Heidi Lent is leading five teams of Warrenton students to Newport today to see if they can once again qualify for the world championships in underwater robotics. Lent, who teaches middle school full-time in Warrenton, said that she’s excited to be competing for the 10th consecutive year in the regional qualifier. To qualify for the regional MAT…