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

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

bash/functions/infra/e2e_run_cpp_windows.md

@@ -18,7 +18,7 @@ output: "Exit code del .exe (0 = pass, no-cero = fail). stdout/stderr del .exe s
 uses_functions:
   - build_cpp_windows_bash_infra
 uses_types: []
-returns: ""
+returns: []
 returns_optional: false
 error_type: "exit_code_bash_core"
 imports: []

bash/functions/infra/ensure_repo_synced.sh

@@ -73,9 +73,9 @@ ensure_repo_synced() {
     # gitea_push_directory ya hace commit con su mensaje por defecto. Para
     # respetar commit_msg custom, hacemos commit aqui antes si hay cambios.
     if [[ -d "$directory/.git" ]]; then
-        local status
-        status=$(git -C "$directory" status --porcelain)
-        if [[ -n "$status" ]]; then
+        local git_status
+        git_status=$(git -C "$directory" status --porcelain)
+        if [[ -n "$git_status" ]]; then
             echo "ensure_repo_synced: commiteando cambios con mensaje: $commit_msg" >&2
             git -C "$directory" add -A
             git -C "$directory" \

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"