feat: 实现供水运营专题大屏BI可视化

- 新增OperationDashboard.vue全屏大屏组件
- 添加6个核心KPI指标卡片: 进水总量/出水总量/产销差率/营收额/平均水质/报警次数
- 实现6个ECharts图表: 供水趋势/水质分布/报警统计/管网空间/设备状态/营收分析
- 创建静态HTML版本operation-dashboard.html，使用CDN加载Vue3/ECharts/Element Plus
- 更新路由配置，添加/operation路径支持
- 修复nextTick导入问题，优化build脚本

🚧 开发者: bot_dev1
📝 任务: #38 [BI] 运营仪表盘 + 供水专题大屏

frontend/node_modules/element-plus/es/components/infinite-scroll/index.d.ts

@@ -0,0 +1,20 @@
+import { SFCWithInstall } from "../../utils/vue/typescript.js";
+import InfiniteScroll from "./src/index.js";
+import * as _$vue from "vue";
+
+//#region ../../packages/components/infinite-scroll/index.d.ts
+declare const _InfiniteScroll: SFCWithInstall<typeof InfiniteScroll>;
+declare const ElInfiniteScroll: SFCWithInstall<_$vue.ObjectDirective<HTMLElement & {
+  ElInfiniteScroll: {
+    container: HTMLElement | Window;
+    containerEl: HTMLElement;
+    instance: _$vue.ComponentPublicInstance;
+    delay: number;
+    lastScrollTop: number;
+    cb: () => void;
+    onScroll: () => void;
+    observer?: MutationObserver;
+  };
+}, () => void, string, any>>;
+//#endregion
+export { ElInfiniteScroll, _InfiniteScroll as default };