feat(spec,service-storage): 恢复前缀枚举为游标形态 —— list(prefix, { cursor, limit }) + 双适配器一致性用例 (#6781)

feat(spec,service-storage): 恢复前缀枚举为游标形态 —— list(prefix, { cursor, limit }) + 双适配器一致性用例 (#6781) #2400