657855bd41
Build / build (push) Failing after 9s
The ./hs Docker wrapper runs docker inside the Gitea runner container. Since project paths inside the runner container don't exist on the Docker host, the volume mount creates an empty /work directory, and Stack finds no packages (error S-8506). Fix: install Stack directly via get.haskellstack.org, use STACK_ROOT for caching, and build with stack directly (no Docker-in-Docker). Also add symlink for gitea-actions.sh convenience script.