actions/checkout@v4 needs node; the archlinux:base-devel container only
had git installed first, so checkout failed with exit 127 (Actions run
1171). Install git, nodejs-lts-jod, npm, sudo, and jq before checkout.
#1
Temporary Arch/CachyOS packaging until upstream ships a native package.
Pulls Cursor's amd64 deb by commit from the linux-x64 update feed.
Includes update script and Gitea Actions for bump + makepkg release.