Initial Auth Impl + More Caching (#647)

* Port redis to staging

* redis cache on staging

* add back legacy auth callback

* Begin work on new auth flows

* Finish all auth flows

* Finish base session authentication

* run prep + fix clippy

* make compilation work

src/models/mod.rs

@@ -4,6 +4,7 @@ pub mod notifications;
 pub mod pack;
 pub mod projects;
 pub mod reports;
+pub mod sessions;
 pub mod teams;
 pub mod threads;
 pub mod users;