refactor(frontend): UI/UX改进和组件优化

- DataTable组件操作列自适应
- 优化各种Modal弹窗
- 统一API调用方式（AbortSignal）
- 添加全局订阅状态管理
- 优化各管理视图的交互和布局
- 修复国际化翻译问题

frontend/src/components/common/index.ts

@@ -2,6 +2,7 @@
 export { default as DataTable } from './DataTable.vue'
 export { default as Pagination } from './Pagination.vue'
 export { default as Modal } from './Modal.vue'
+export { default as BaseDialog } from './BaseDialog.vue'
 export { default as ConfirmDialog } from './ConfirmDialog.vue'
 export { default as StatCard } from './StatCard.vue'
 export { default as Toast } from './Toast.vue'