Move set_on_changed registrations from on_process() to __init__()

Callbacks were registered inside the async on_process() coroutine,
meaning they weren't active until the event loop started ticking.
Moving them to __init__ ensures they're wired up at construction time.
Also removes remaining debug prints from the affected task files.

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

tasks/tempsensor.py

@@ -2,7 +2,7 @@ import asyncio
 from tasks import ATask
 from ws.message import MsgIo
 from utils.value import ChangedFloat
-from components import ATemperatureSensor, TemperatureSensorException
+from components import ATemperatureSensor
 
 
 class TempSensorTask(ATask):
@@ -13,6 +13,7 @@ class TempSensorTask(ATask):
 		msg_handler.set_recv_handler(self.recv)
 		self.sensor = sensor_device
 		self.temp = self.sensor.temperature()
+		self.set_on_changed("temp", ChangedFloat(self.on_temp_changed, prec=1).set)
 
 	def on_temp_changed(self, value):
 		asyncio.create_task(self.send({'Temp': value}))
@@ -24,12 +25,6 @@ class TempSensorTask(ATask):
 		await self.msg_handler.send(data)
 
 	async def on_process(self):
-		print("{}: Started with interval {} s".format(self.msg_handler.get_key(), self.interval))
-		temp = ChangedFloat(self.on_temp_changed, prec=1)
-		self.set_on_changed("temp", temp.set)
 		while True:
-			try:
-				self.temp = self.sensor.temperature()
-			except TemperatureSensorException as e:
-				print(e)
+			self.temp = self.sensor.temperature()
 			await asyncio.sleep(self.interval)