chore: 批量更新导入路径到 features 架构

- 更新所有 admin API 文件导入路径
- 更新所有 features 中 Vue 文件的导入路径
- 修复 ChatAttachmentImage 组件导入
- 修复 auth 模块部分导入路径

剩余 ~190 个类型错误待修复（主要是缺失的模块）

frontend/src/features/admin/components/HomeBannersDialog.vue

@@ -2,9 +2,9 @@
 import { ElMessage } from 'element-plus'
 import { ref, watch } from 'vue'
 
-import { uploadAdminFile } from '@/api/files'
-import { defaultHomeBanners, mergeHomeConfig, type HomeBannerSlide } from '@/api/homeConfig'
-import { updateSystemConfig, type SystemConfig } from '@/api/systemConfigs'
+import { uploadAdminFile } from '@/shared/api/files'
+import { defaultHomeBanners, mergeHomeConfig, type HomeBannerSlide } from '@/features/listings/api/homeConfig'
+import { updateSystemConfig, type SystemConfig } from '@/features/admin/api/systemConfigs'
 import { safeParseJSON } from '@/utils/json'
 
 const props = defineProps<{