Add full Gadgetbridge integration for the Braun iCheck 7 BPW4500
blood pressure monitor using its proprietary BLE protocol (Kaz USA).
New files:
- BraunBPW4500DeviceCoordinator: device detection via BLE name "BPW4500",
WHO blood pressure classification, GenericBloodPressureSampleProvider
- BraunBPW4500DeviceSupport: BLE communication, 19-byte measurement
packet parsing (systolic, diastolic), RTC sync
- DashboardBloodPressureWidget: dashboard gauge with WHO color coding
- BloodPressureChartFragment: line chart, measurement list,
PDF and CSV export with user profile info
Modified files:
- DeviceType: register BRAUN_BPW4500
- DashboardFragment: register bloodpressure widget
- DefaultChartsProvider: register BloodPressureChartFragment
- arrays.xml: add blood pressure to dashboard and charts tab lists
- strings.xml: add device name, bp_systolic, bp_diastolic strings
- shared_paths.xml: add pdf/csv cache paths for FileProvider export
Known limitation: offline stored measurements cannot be retrieved
reliably as the device transmits history data before GATT service
discovery completes in Gadgetbridge.
fixed chart monthly/weekly view
remodeled blood pressure fragments
fix remaining review comments
