Error handling / logging

A bunch of things going on here:

* Faraday middleware to facilitate logging of all requests/responses sent to the adapter
* Ability to capture errors that may occur on deployment creation and bubble them back up to the local agent
* Suppression of adapter errors that occur during `deployments#show` and `deployments#destroy`
* Global error handler for general error handling

[finishes #82690376]
I'm totally using this. I want to turn off the `rescue_from StandardError` in dev and test mode on API/UI (it makes errors impossible to debug), but I haven't done it yet because I've struggled with how I could still implement the tests that exist now for `handle_exception`.