* feat(release): ship a Linux AppImage alongside the tarball
The Linux release was a bare, dynamically-linked binary built on
ubuntu-latest, so it only reliably ran on Ubuntu — Fedora/Arch users hit
missing/mismatched runtime libs. Add an AppImage that bundles the
x11/wayland/xkb/fontconfig/freetype libs so it launches across distros.
- bundle-appimage.sh: linuxdeploy populates an AppDir + deps, completions
go beside the binary (usr/bin/completions, matching signature.rs's
current_exe lookup), appimagetool packs it. Runs FUSE-less on CI.
- release.yml: new "Package Linux AppImage" step after the tarball,
libfuse2/file added to the Linux deps, *.AppImage added to the upload
list. The AppImage step avoids `rm -rf dist` so the tarball survives.
- README (en + zh): recommend the AppImage, keep the tarball as the bare
fallback.
Note: glibc is not bundled, so ubuntu-latest still sets the glibc floor.
* fix(release): downscale AppImage icon to a resolution linuxdeploy accepts
linuxdeploy rejected the 1024x1024 app-icon.png (its valid list tops out at
512). Resize to 256x256 with ImageMagick's convert (added to the Linux apt
deps) before handing the icon to linuxdeploy.
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Co-authored-by: l0ng-ai <24760907+l0ng-ai@users.noreply.github.com>
