feat: return error message instead of raising exception

[gus-opentensor]

Overview

• Previously we would raise an exception and stdout the whole stack trace, this update makes enables a terse error messages.

Ex:

[thewhaleking]

In the instances here where we also unlock the hotkey, do we want to include those in the try block?

[ibraheem-opentensor]

In the instances here where we also unlock the hotkey, do we want to include those in the try block?

Interesting thought - but confirming if we actually unlock the hotkey currently. afaik, hotkey is without password in our current setup

[ibraheem-opentensor]

LGTM.
I think we dont password protect our hotkeys but we can confirm that