refactor: replace SudLogTask with ServerLogTask for all logging

SudLogTask is removed; ServerLogTask now covers the full server session
and gains PlantParams tracking (log_plant_params callback wired from
SudTask.set_on_plant_params) so step transitions are still captured in
the log.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/brewpi.py

@@ -15,7 +15,7 @@ from components.plant import PlantFactory
 from components.actor import StirrerFactory
 from components.sud import Sud
 from components.sud_forecast import SudForecastEstimator
-from tasks import TaskManager, TempSensorTask, HeaterTask, PotTask, TcTask, StirrerTask, SudTask, SudLogTask, ServerLogTask
+from tasks import TaskManager, TempSensorTask, HeaterTask, PotTask, TcTask, StirrerTask, SudTask, ServerLogTask
 
 import argparse as ap
 
@@ -128,16 +128,11 @@ if __name__ == '__main__':
 		heater.get_powers(), args.sim_warp_factor, config.get('Pot', {}))
 	sud_task = SudTask(sud, tc, stirrer, pot, DT, DT_TASK, dispatcher.msgio_get("Sud"), forecast_estimator)
 	taskmgr.add(sud_task)
-	# Records every Sud run's measured data and forecast to their own
-	# JSON files under logs/, for later offline analysis - see
-	# tasks/sud_log.py.
-	sud_log_task = SudLogTask(sud, tc, heater, heater_task, sud_task, DT_TASK, config=config)
-	sud_task.set_on_plant_params(sud_log_task.log_plant_params)
-	taskmgr.add(sud_log_task)
 
 	# Continuous server-session log - records from startup to shutdown
 	# regardless of Sud state; written to logs/log_{date_time}.json on exit.
 	server_log_task = ServerLogTask(tc, heater, heater_task, DT_TASK, args.logdir, config=config)
+	sud_task.set_on_plant_params(server_log_task.log_plant_params)
 	taskmgr.add(server_log_task)
 
 	# Assign data flow