refactor: 扁平化营养师/管家入驻申请页面结构 + 统一import路径为@别名

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

cfc-frontend/pages/butler/apply/index.vue → cfc-frontend/pages/butler/apply.vue

@@ -41,7 +41,7 @@
 </template>
 
 <script>
-import { butlerApply } from '../../utils/api'
+import { butlerApply } from '@/utils/api'
 
 export default {
   data() {

cfc-frontend/pages/nutritionist/apply/index.vue → cfc-frontend/pages/nutritionist/apply.vue

@@ -30,7 +30,7 @@
 </template>
 
 <script>
-import { nutritionistApply } from '../../../utils/api'
+import { nutritionistApply } from '@/utils/api'
 
 export default {
   data() {