There's no way to pause install actions in agent mode

[luabud]

Testing #241788

1. Submit a request in agent mode that will require a "long" terminal action, e.g. package installation
2. Once you accept the terminal to be run, and then pause, nothing happens, as the install can't be actually paused:

Maybe it'd make sense for the pause button to be 'disabled'/grayed out, at least when the action is related to installing packages?

[connor4312]

We don't support propagating pauses to tools right now, but also I still want to let folks pause during tool calls since otherwise it might be hard for them to actually pause the request if there is a sequence of calls the model wants to make.