feat: Add full CHOICE.All device support

[lackas]

Summary

Add proper support for Blanco CHOICE.All devices (dev_type=2) with new sensors, settings, and controls. This addresses issue #6 where CHOICE.All devices connect but return limited data.

Based on version 0.0.6 with your improved connection timeout and device type detection.

New Entities

Control (Select):

• Heating Temperature - Set boiling water temperature (60-100°C)

Sensors (Status):

• Boiler Temperature 1 - First boiler sensor reading (°C)
• Boiler Temperature 2 - Second boiler sensor reading (°C)
• Cooling Compartment Temperature - Current cooling temp (°C)
• Main Controller Status - Status code from main controller
• Connection Controller Status - Status code from connection controller

Sensors (Settings/Diagnostic):

• Heating Setpoint - Configured heating target temperature
• Hot Water Calibration - Hot water calibration value (mL)
• Medium Carbonation Ratio - Medium CO2 water ratio
• Classic Carbonation Ratio - Classic CO2 water ratio

Files Changed

File	Changes
client.py	Add set_heating_temperature(), parse CHOICE.All fields from settings/status responses
coordinator.py	Add set_heating_temperature() with validation
data.py	Add CHOICE.All fields to BlancoUnitSettings and BlancoUnitStatus dataclasses
select.py	Add HeatingTemperatureSelect (60-100°C range)
sensor.py	Add 9 new sensors for CHOICE.All data
translations/en.json	Add translations for all new entities

Backwards Compatibility

All new fields have defaults (0, 0.0) so drink.soda devices continue to work without changes. The HeatingTemperatureSelect only shows as available when set_point_heating > 0.

Testing

• Tested on real CHOICE.All hardware (CHOICE.All-172)
• Home Assistant 2026.1.3 on Raspberry Pi
• All sensors populate correctly
• Heating temperature control verified working

Test plan

• Verify drink.soda devices still work (no new fields expected)
• Verify CHOICE.All devices show all new sensors
• Test heating temperature control changes value on device
• Run existing test suite

[lackas]

Thanks for the review! I've addressed all feedback in the latest commit:

• Added entity_registry_visible_default to HeatingTemperatureSelect and all CHOICE.All sensors (returns True only for device_type == 2)
• Restored DeviceTypeSensor and DeviceIdSensor
• Fixed the test for the split temperature params classes

Ready for another look when you have time.

[Nailik]

I decided it's better to not add the entities at all if device_type = 1.
This works because in init in async_setup_entry the integration awaits async_config_entry_first_refresh and therefore the device_type is available once async_setup_entry is called.
I also updated the tests to cover those cases.