Add set_ambient_temperature and set_model_plant_params stubs to TempControllerBase

Same pattern as set_model_power: these methods only existed on the Smith
controller, forcing five hasattr guards at call sites. No-op stubs on the
base class give all controllers a stable interface; Smith overrides them.
Remove the now-redundant hasattr guards.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Tqxrk8uj4M3w3d3eXm3xK8

components/sud_forecast.py

@@ -108,8 +108,7 @@ class SudForecastEstimator:
 		pot.initial(start_theta)
 		tc = PidFactory.create(self.pid_type, self.dt)
 		tc.set_params(self.tempctrl_params)
-		if hasattr(tc, 'set_ambient_temperature'):
-			tc.set_ambient_temperature(self.theta_amb)
+		tc.set_ambient_temperature(self.theta_amb)
 		tc.set_enabled(True)
 		tc.set_theta_ist(pot.get_temperature())
 		# Seed the target at start_theta - this tc is a fresh, throwaway
@@ -159,8 +158,7 @@ class SudForecastEstimator:
 			step_starts.setdefault(sud.index, t[-1])
 			params = sud.derive_plant_params(step.get('grain_mass', 0), step.get('water_mass', 0))
 			pot.set_plant_params(params)
-			if hasattr(tc, 'set_model_plant_params'):
-				tc.set_model_plant_params(params)
+			tc.set_model_plant_params(params)
 			if sud.state == SudState.RAMPING and step['temperature'] is not None:
 				tc.set_theta_soll(step['temperature'])
 				tc.set_heatrate_soll(step['ramp']['rate'])