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/lib/directives/repeat-click/index.d.ts

@@ -0,0 +1,20 @@
+import { ObjectDirective } from "vue";
+
+//#region ../../packages/directives/repeat-click/index.d.ts
+declare const REPEAT_INTERVAL = 100;
+declare const REPEAT_DELAY = 600;
+declare const SCOPE = "_RepeatClick";
+interface RepeatClickEl extends HTMLElement {
+  [SCOPE]: null | {
+    start?: (evt: MouseEvent) => void;
+    clear?: () => void;
+  };
+}
+interface RepeatClickOptions {
+  interval?: number;
+  delay?: number;
+  handler: (...args: unknown[]) => unknown;
+}
+declare const vRepeatClick: ObjectDirective<RepeatClickEl, RepeatClickOptions | RepeatClickOptions['handler']>;
+//#endregion
+export { REPEAT_DELAY, REPEAT_INTERVAL, RepeatClickOptions, vRepeatClick };