hubs

Some feedback on hubble logs:

1. Do they need to be JSON? I think human readable is important. They can still be parseable. The nested JSON with `\` is especially bad.
2. I assume "type": "err" means it was from stderr, but it's confusing, especially these ones with an empty message (and it seemed hung too).
3. Instead of the numeric "level" in the nested JSON in the message, a human readable level (info/warn/error/critical/etc) would help a lot.
4. There's so much. Verbose output with "debug" level is fine, but it should be easy to change that or at least use grep (can't even use jq because of the nested JSON).

Thanks for listening ❤️