feat(pl): 运费结算审批分流与车辆挂车号等 PL 能力完善

拆分运费审批/出款页面，补充结算发票附件与菜单 SQL，并同步前后端模型与车辆相关展示。

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/sql/20260628_pl_vehicle_menu_order.sql

@@ -0,0 +1,26 @@
+-- =============================================================================
+-- 运输管理 · 调整「山峡自有车辆」与「车辆管理」菜单排序
+-- 执行库：shanxia2.0 门户库（与 web-admin 同库）
+-- 说明：可重复执行；交换 order_num，使「山峡自有车辆」排在「车辆管理」之上
+-- 执行后：重新登录或刷新菜单缓存
+-- =============================================================================
+
+SET NAMES utf8mb4;
+
+UPDATE `sys_menu`
+SET `order_num` = 2, `update_time` = NOW()
+WHERE `id` = 'PL_SELF_VEHICLE'
+  AND `del_flag` = 0
+  AND (`order_num` IS NULL OR `order_num` <> 2);
+
+UPDATE `sys_menu`
+SET `order_num` = 4, `update_time` = NOW()
+WHERE `id` = 'PL_VEHICLE'
+  AND `del_flag` = 0
+  AND (`order_num` IS NULL OR `order_num` <> 4);
+
+SELECT `id`, `menu_name`, `parent_id`, `order_num`
+FROM `sys_menu`
+WHERE `id` IN ('PL_SELF_VEHICLE', 'PL_VEHICLE')
+  AND `del_flag` = 0
+ORDER BY `order_num`;