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/scrollbar/index.mjs

@@ -0,0 +1,12 @@
+import { withInstall } from "../../utils/vue/install.mjs";
+import { scrollbarEmits, scrollbarProps } from "./src/scrollbar.mjs";
+import { BAR_MAP, GAP, renderThumbStyle } from "./src/util.mjs";
+import { thumbProps } from "./src/thumb.mjs";
+import { scrollbarContextKey } from "./src/constants.mjs";
+import scrollbar_default from "./src/scrollbar2.mjs";
+//#region ../../packages/components/scrollbar/index.ts
+const ElScrollbar = withInstall(scrollbar_default);
+//#endregion
+export { BAR_MAP, ElScrollbar, ElScrollbar as default, GAP, renderThumbStyle, scrollbarContextKey, scrollbarEmits, scrollbarProps, thumbProps };
+
+//# sourceMappingURL=index.mjs.map