GetBluetoothStatusTool
Reports Bluetooth adapter status. Reading adapter_name/adapter_address needs the Bluetooth permission (see BluetoothTools); they return null if it is missing. adapter_address is also null on API 26+ when the platform's anonymized dummy value (02:00:00:00:00:00) is all a non-privileged caller ever gets back.
Output keys: is_enabled, adapter_name, adapter_address, bluetooth_supported (false when the device has no adapter).