electron-builder couldn't resolve the Electron binary from the
electron-nightly npm alias, producing no output. Add explicit
electronDist to electron-builder.yml and validate artifacts exist
before creating the GitHub release to prevent empty releases.
Replace Gitea CI workflow with GitHub Actions workflow using gh CLI
for release creation. Update auto-updater, changelog fetch, download
links, electron-builder publish config, and package.json homepage to
point at github.com/bigjakk/Krunker-Civilian-Client.
bigjakk