fix: zsh-safe var rename + yaml returns as list

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

bash/functions/infra/gitea_push_directory.sh

@@ -74,10 +74,10 @@ gitea_push_directory() {
     # Añadir y commitear cambios si los hay
     git -C "$directory" add -A
 
-    local status
-    status=$(git -C "$directory" status --porcelain)
+    local git_status
+    git_status=$(git -C "$directory" status --porcelain)
 
-    if [[ -n "$status" ]]; then
+    if [[ -n "$git_status" ]]; then
         echo "gitea_push_directory: commiteando cambios..." >&2
         git -C "$directory" -c user.email="agent@fn-registry" -c user.name="fn-registry agent" \
             commit -m "chore: sync from fn-registry agent"