updated scripts: better warn messages, added/updated dotfiles

run_once_55-configure-root.sh.tmpl

@@ -4,6 +4,8 @@
 
 set -euo pipefail
 
+warn() { echo ">>> [configure-root] WARNING: $*" >&2; }
+
 SRC="{{ .chezmoi.sourceDir }}"
 ROOT_HOME="/root"
 
@@ -48,7 +50,7 @@ if command -v fish >/dev/null 2>&1; then
     current="$(getent passwd root | cut -d: -f7)"
     if [ "$current" != "$(command -v fish)" ]; then
         echo ">>> [configure-root] chsh root → fish"
-        sudo chsh -s "$(command -v fish)" root || true
+        sudo chsh -s "$(command -v fish)" root || warn "chsh failed for root (may need /etc/shells entry)"
     else
         echo ">>> [configure-root] root shell already fish"
     fi