San Marcos baseball struggled to bounce back from an early deficit and fell to Grand Terrace by a score of 8-4 in the first round of the CIF-SS Div. 4 playoffs on Thursday at Joe Mueller Field. The Royals, under first-year head coach Richard Schroeder, finished with an overall record of 16-12 to go along with a co-Channel League title, the program’s first since 2023 and its fourth in the last six seasons. “When I came in here, the one thing that…