(Another) Feature Request: pass ipad battery info to remote shell

I don't know whether this is even possible, but it would be really great to expose the current battery percentage via blink into a remote session so that, for example, we could see the current battery state in a tmux status line.

No files or tests are named. Start by tracing how Blink exposes local iPad device information to remote shell sessions and review any existing system-information integration. Done means defining and implementing a reliable way for the current battery percentage to be available in the remote session for use by a tmux status line.

Written by the indexing model from the issue text.