using the new BT proxies, we are trying to find best spots and positioning for the proxies and the devices that connect to them.
We do have a signal_strength entity on the devices, but there is no way we can see which proxy it connects to.
Please add a source attribute to the devices signal_strength,
just like is done in the iBeacon trackers:
it would also be very nice to have a list of connected devices on the proxies themselves:
since we currently have no idea what these devices are connected to, and only show a Safe mode boot button
