Error message + catch keyboard interrupts

[thiswillbeyourgithub]

Hi,

I made iroh-send after looking at your bidirectional.py example.
It's nothing groundbreaking of course but thanks a lot.

I noticed a bunch of error messages though:

In [1]: from prime_iroh import Node
In [2]: node = Node.with_seed(1, seed=12345)
[2025-10-28T13:38:02Z ERROR iroh::discovery::pkarr] pkarr_publish; me=9756f70efa
[2025-10-28T13:38:02Z ERROR tracing::span] magicsock;

More problematically: doing ctrl+c when a node is connecting or waiting will not do anything. So I can't seem to exit cleanly.