feat(frontend): 优化弹窗组件架构和用户体验

- 使用 BaseDialog 替代旧版 Modal 组件
- 添加平滑过渡动画和更好的可访问性支持
- 新增 ExportProgressDialog 导出进度弹窗
- 优化所有账号管理和使用记录相关弹窗
- 更新国际化文案，改进用户交互体验
- 精简依赖，减少 package.json 体积

frontend/package.json

@@ -14,13 +14,16 @@
     "@vueuse/core": "^10.7.0",
     "axios": "^1.6.2",
     "chart.js": "^4.4.1",
+    "file-saver": "^2.0.5",
     "pinia": "^2.1.7",
     "vue": "^3.4.0",
     "vue-chartjs": "^5.3.0",
     "vue-i18n": "^9.14.5",
-    "vue-router": "^4.2.5"
+    "vue-router": "^4.2.5",
+    "xlsx": "^0.18.5"
   },
   "devDependencies": {
+    "@types/file-saver": "^2.0.7",
     "@types/node": "^20.10.5",
     "@vitejs/plugin-vue": "^5.2.3",
     "autoprefixer": "^10.4.16",