- Updated device mapping configuration to support explicit device range specification
- Changed from simple [min_kelvin, max_kelvin] format to structured format:
{"kelvin_range": [min_kelvin, max_kelvin], "device_range": [min_device, max_device]}
- This allows devices with non-standard (non-1-100) color temp ranges to be properly supported
- Improved color temperature conversion logic in light entity:
- Added support for device-specific range mapping instead of hardcoded 1-100 range
- Enhanced configuration detection to handle both direct and nested formats
- Updated kelvin-to-device and device-to-kelvin conversion to use dynamic ranges
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