- Adds `make lint-shell`. uses local `shellcheck` if its version
matches, otherwise runs the pinned image via docker or podman
- `.shellcheckrc` disables the most annoying rules
- Fixes findings across existing scripts
Fixes: #37648
Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: Claude (Opus 4.7) <noreply@anthropic.com>
Co-authored-by: TheFox0x7 <thefox0x7@gmail.com>
Co-authored-by: Nicolas <bircni@icloud.com>
