- fix: issue where login failed to return the user if their role was null

- add: register route for api-service
- update: spawn a thread for the rest api in the api service

auth-service/src/users.rs

@@ -21,7 +21,6 @@ pub fn verify_password(password: &str, hash: &str) -> bool {
 
 pub async fn verify_user<T: DatabaseClientTrait>(mut db_client: T,
                          username: &str, password: &str) -> Option<String> {
-    // Placeholder: Replace with a gRPC call to the Database Service
     let user = db_client.get_user_by_username(username).await.ok()?;
 
     if verify_password(password, &user.hashed_password) {