fix(food-encyclopedia): 后台食物百科列表/编辑页接入并修复图片URL双前缀

- 新增 FoodEncyclopediaController 及 ToolFoodAdminService，提供 /api/admin/tool/food/* CRUD
- ToolFoodAdminServiceImpl 在保存前 clearPrefix 并正则修复历史脏数据中的多层 host 前缀
- 前端 list.vue/edit.vue 修复二次解包导致 listData.list 渲染崩溃
- edit.vue 加载详情时兜底归一化 image 字段，处理 https://host//https://host//crmebimage/... 形式
- content.js 注册 foodManager / foodEdit 路由

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

msh_single_admin/src/router/modules/content.js

@@ -48,6 +48,25 @@ const contentRouter = {
         icon: 'clipboard',
       },
     },
+    {
+      path: 'foodManager',
+      name: 'foodManager',
+      component: () => import('@/views/content/food/list'),
+      meta: {
+        title: '食物百科',
+        icon: 'clipboard',
+      },
+    },
+    {
+      path: 'foodEdit/:id?',
+      name: 'foodEdit',
+      component: () => import('@/views/content/food/edit'),
+      meta: {
+        title: '编辑食物',
+        noCache: true,
+        activeMenu: '/content/foodManager',
+      },
+    },
   ],
 };