refactor(scripts): organize script entry points

scripts/tests/test-quick-update.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -euo pipefail
+case "${1:-}" in ''|--summary) ;; *) printf 'Unknown argument: %s\n' "$1" >&2; exit 1 ;; esac
+root=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/../.." && pwd)
+python3 "$root/scripts/tests/test-quick-update.py"
+printf 'Tests: PASS | quick update selection\n'