wip: migrate backend to new game package

quests/copy/answer.sh

@@ -1,13 +0,0 @@
-echo start
-ls
-cat hello.txt
-cat world.txt
-echo next
-cp hello.txt hello2.txt
-cat hello2.txt
-cp world.txt world2.txt
-cat world2.txt
-cp -r notes notes2
-ls notes2
-cp hello.txt world.txt
-cat world.txt