Update integration

[de-andrei]

Add DE BLE integrations (4 devices)

• de_ble_kitchen_scale - Nutridays KT630LB kitchen scale
• de_ble_fingertip_oximeter - Contec PC-60FW pulse oximeter
• de_ble_blood_pressure_monitor - Medisana BU 575 blood pressure monitor
• de_ble_thermometer - Relsib WT50 thermometer

Integrations

This PR adds 4 DE BLE integrations:

1. DE BLE Kitchen Scale - for Nutridays KT630LB kitchen scale
2. DE BLE Fingertip Oximeter - for Contec PC-60FW pulse oximeter
3. DE BLE Blood Pressure Monitor - for Medisana BU 575 blood pressure monitor
4. DE BLE Thermometer - for Relsib WT50 thermometer

Repository Links

• https://github.com/de-andrei/de_ble_kitchen_scale
• https://github.com/de-andrei/de_ble_fingertip_oximeter
• https://github.com/de-andrei/de_ble_blood_pressure_monitor
• https://github.com/de-andrei/de_ble_thermometer

Requirements Check

• hacs.json present
• brand/icon.png present (256x256)
• README.md with clear instructions
• GitHub Actions passing
• Releases created (v1.0.3)
• Repository topics set
• Repository description set
• Issues enabled

Device Information

Device	Manufacturer	Model	Service UUID
Kitchen Scale	Nutridays	KT630LB	0000ffb0-0000-1000-8000-00805f9b34fb
Fingertip Oximeter	Contec	PC-60FW	6e400001-b5a3-f393-e0a9-e50e24dcca9e
Blood Pressure Monitor	Medisana	BU 575	00001810-0000-1000-8000-00805f9b34fb
Thermometer	Relsib	WT50	00001809-0000-1000-8000-00805f9b34fb

All integrations have been tested and are working correctly.