[SENSOR] Build temperature sensor with drift simulation

[ezehf2]

Create temperature_sensor.py extending the sensor base class. Values should simulate gradual drift rather than pure random jumps — each new reading should move slightly up or down from the previous one. Realistic range is 18 to 30 degrees Celsius. The sensor should work for any room ID passed to it so it can simulate multiple rooms. Include a short manual test at the bottom of the file that prints five consecutive readings to show the drift behaviour.