Use slim DTOs without audit timestamps; migrate legacy LeftPostcode/RightPostcode on read. Co-authored-by: Cursor <cursoragent@cursor.com>
新增 GET publish/preview 返回含黑名单/偏远/计重/进位明细的完整 rules 快照,便于核对 Content。 Co-authored-by: Cursor <cursoragent@cursor.com>