Cleaned up my error handling - turns out graphql can accept Error instances as return values, not just when thrown. So this change updates the types to reflect that. This is now the dataloader package handles multiple errors, so this makes it easier to map dataloader outputs to graphql results.

I'm now using transient services, so I need to provide the proxy object so they can be instantiated each time they're needed rather than instantiating them once at the beginning.

Here's where I'm actually passing in the proxy object instead of resolving all services once.

Converted to a class to speed up creating instances of this object now that it's created every request instead of once up top.

In general, singleton objects are faster to create with a factory function once, but classes are faster when they need instantiated multiple times, like on every request.

Added a simple fetch error to better log errors coming from other APIs

Registering these as transient means they'll be recreated every time they're accessed. I pulled out the API dependencies so those aren't recreated unnecessarily.

The data loaders inside each still have a cache, but they are no longer long-lived, and expire after each requesst.

Technically, the stores might be created more than once each request if the store is resolved multiple times per-request... they're not, but could be in the future.