业务更名为撞车并切换crash路由

用户可见文案与页面/API路径改为撞车与crash，保留mohong表与权限码兼容；移动端入口去掉租/撞图标。

frontend/src/router/adminRoutes.ts

@@ -73,26 +73,26 @@ export const adminRoutes: RouteRecordRaw[] = [
     meta: adminMeta,
   },
   {
-    path: adminPath('mohong/categories'),
-    name: 'admin-mohong-categories',
+    path: adminPath('crash/categories'),
+    name: 'admin-crash-categories',
     component: () => import('@/features/admin/views/AdminMohongCategoriesView.vue'),
     meta: adminMeta,
   },
   {
-    path: adminPath('mohong/products'),
-    name: 'admin-mohong-products',
+    path: adminPath('crash/products'),
+    name: 'admin-crash-products',
     component: () => import('@/features/admin/views/AdminMohongProductsView.vue'),
     meta: adminMeta,
   },
   {
-    path: adminPath('mohong/orders'),
-    name: 'admin-mohong-orders',
+    path: adminPath('crash/orders'),
+    name: 'admin-crash-orders',
     component: () => import('@/features/admin/views/AdminMohongOrdersView.vue'),
     meta: adminMeta,
   },
   {
-    path: adminPath('mohong/config'),
-    name: 'admin-mohong-config',
+    path: adminPath('crash/config'),
+    name: 'admin-crash-config',
     component: () => import('@/features/admin/views/AdminMohongConfigView.vue'),
     meta: adminMeta,
   },