chore: pre-push hook bash 3.2 — no local outside functions.

scripts/git-hooks/pre-push

@@ -31,9 +31,9 @@ while read -r local_ref local_sha remote_ref remote_sha; do
 		continue
 	fi
 
-	local range=""
+	range=""
 	if [[ "$remote_sha" == "$zero_sha" ]]; then
-		local base=""
+		base=""
 		if git show-ref --verify --quiet refs/remotes/origin/main; then
 			base="$(git merge-base origin/main "$local_sha" 2>/dev/null || true)"
 		fi
@@ -54,9 +54,8 @@ done
 
 # Fallback when stdin is empty (non-standard invocations).
 if [[ "$read_any_ref" == false ]]; then
-	local head_sha
 	head_sha="$(git rev-parse HEAD)"
-	local base=""
+	base=""
 	if git show-ref --verify --quiet refs/remotes/origin/main; then
 		base="$(git merge-base origin/main "$head_sha" 2>/dev/null || true)"
 	fi