refactor(scrap): 报废管理子菜单按业务流排序

顺序调整为：报废申请 → 按单报废 → 报废记录 → 报废审批。

侧边栏由 layout/components/Sidebar/index.vue 的 v-for="child in
route.children" 直接按路由数组顺序渲染，无排序逻辑，故仅需调整数组元素。
原「按单报废执行」标题缩短为「按单报废」（四字，与同级菜单一致）。

注：父菜单 redirect 仍指向 /scrap/index（报废记录），与出库模块
redirect 指向「出库记录」的既有惯例保持一致，未改动。

inventory-web/src/router/index.ts

@@ -252,22 +252,22 @@ const routes: Array<RouteRecordRaw> = [
         redirect: '/scrap/index',
         children: [
             {
-                path: 'index',
-                name: 'ScrapList',
-                component: () => import('@/views/operation/scrap/index.vue'),
-                meta: { title: '报废记录' }
+                path: 'apply',
+                name: 'ScrapApply',
+                component: () => import('@/views/operation/scrap/apply/index.vue'),
+                meta: { title: '报废申请' }
             },
             {
                 path: 'create',
                 name: 'ScrapCreate',
                 component: () => import('@/views/operation/scrap/create.vue'),
-                meta: { title: '按单报废执行' }
+                meta: { title: '按单报废' }
             },
             {
-                path: 'apply',
-                name: 'ScrapApply',
-                component: () => import('@/views/operation/scrap/apply/index.vue'),
-                meta: { title: '报废申请' }
+                path: 'index',
+                name: 'ScrapList',
+                component: () => import('@/views/operation/scrap/index.vue'),
+                meta: { title: '报废记录' }
             },
             {
                 path: 'approval',