Remove unnecessary print statements for sprint mode and batch data writing

engines/headless_engine.py

@@ -238,7 +238,6 @@ class HeadlessSimulationEngine:
         # Enable sprint mode for maximum speed if not real-time mode
         if max_speed_mode:
             self.simulation_core.timing.set_sprint_mode(True)
-            print("Running at maximum speed (sprint mode enabled)")
 
         last_batch_time = time.time()
         batch_interval = 5.0
@@ -342,8 +341,6 @@ class HeadlessSimulationEngine:
             # Clear written data
             data_list.clear()
 
-        print(f"Wrote batch data at tick {self.simulation_core.state.total_ticks}")
-
     def _finalize(self):
         """Finalize simulation and write remaining data."""