this lets us cut down on worrying about mysql errors
Mysql error responsibility is now the route dispatchers problem
Route dispatcher itself can easily dispatch to another handler
+ new() -> create a new ready to insert invite
+ from_tuple -> helps us translate db responses into a struct
+ as_json_str -> String which we can use as a json payload(jank but whatever it works with proper headers)
FUnctions:
get_invite_by_code: as the name implies grabs an invite assuming its in our db otherwise None
record_invite_usage: blindly modifies the row in the schema, assumes that if we get to this point we're ok to ignore erroneous possibilities
join_invite_code: main dispatcher for joining using the /invite/join route
create_invite: meant to the be the route handler for creating invites later on
Needed: test module since we've basically reworked the whole auth/invite system in one day
