fix: change jwt expiry time to config

* rename dockerfile env

quests/helloworld/Dockerfile

@@ -1,5 +1,5 @@
 FROM lancatlin/linux-odyssey:base
 
-COPY ./quests/helloworld/home /home/${USERNAME}/
+COPY ./quests/helloworld/home ${HOME}
 
 CMD [ "/bin/zsh" ]

server/src/utils/auth.js

@@ -19,7 +19,7 @@ export function genSessionJWT(session) {
     jwt.sign(
       { session_id: session.id },
       config.jwtSecret,
-      { expiresIn: '1h' },
+      { expiresIn: config.expiry },
       (err, token) => {
         if (err) {
           reject(err)