Swashbuckle annotations

[TheTedder]

Closes #168

[zysim]

I honestly don't know if I prefer the look of this change. I feel bad that you've already put in the work on this, but things feel less readable, personally. On top of that, the attributes can't be folded away, which gets distracting.

[TheTedder]

I honestly don't know if I prefer the look of this change. I feel bad that you've already put in the work on this, but things feel less readable, personally. On top of that, the attributes can't be folded away, which gets distracting.

I updated it just in case you change your mind. I think the openapi doc is actually more correct this way.

[zysim]

Honestly; this is fine. I'll merge this. nvm there's conflicts. I'll deal with it in a couple hours, if you haven't done so yourself, already.

[zysim]

Good enough for me. I like that we don't need to needlessly-annotate injected services anymore, as well. I wish we could make the error response schema more accurate (e.g. they all show status: 0 instead of the correct error code), but it's whatever. You can always just test out the API itself in the Swagger doc, anyway.