probeBluetoothPassive
Probes passive Bluetooth adapter capabilities.
Reports adapter presence and enabled state plus LE capability flags (multi-advertisement, LE 2M / coded PHY, offloaded filtering) without scanning for devices.
Privacy: reads only adapter capabilities/state, not paired or nearby devices, so no Bluetooth runtime permission is required here. Contributes to hardware fingerprinting.
Return
Map of probe keys to Bluetooth capability values.
Parameters
context
Context used to obtain the BluetoothManager/adapter.