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/hooks/use-timeout/index.d.ts

@@ -0,0 +1,7 @@
+//#region ../../packages/hooks/use-timeout/index.d.ts
+declare function useTimeout(): {
+  registerTimeout: (fn: (...args: any[]) => any, delay: number) => void;
+  cancelTimeout: () => void;
+};
+//#endregion
+export { useTimeout };

frontend/node_modules/element-plus/lib/hooks/use-timeout/index.js

@@ -0,0 +1,25 @@
+Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
+require("../../_virtual/_rolldown/runtime.js");
+let _vueuse_core = require("@vueuse/core");
+//#region ../../packages/hooks/use-timeout/index.ts
+function useTimeout() {
+	let timeoutHandle;
+	const registerTimeout = (fn, delay) => {
+		cancelTimeout();
+		timeoutHandle = globalThis.setTimeout(fn, delay);
+	};
+	const cancelTimeout = () => {
+		if (timeoutHandle === void 0) return;
+		globalThis.clearTimeout(timeoutHandle);
+		timeoutHandle = void 0;
+	};
+	(0, _vueuse_core.tryOnScopeDispose)(() => cancelTimeout());
+	return {
+		registerTimeout,
+		cancelTimeout
+	};
+}
+//#endregion
+exports.useTimeout = useTimeout;
+
+//# sourceMappingURL=index.js.map

frontend/node_modules/element-plus/lib/hooks/use-timeout/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","names":[],"sources":["../../../../../packages/hooks/use-timeout/index.ts"],"sourcesContent":["import { tryOnScopeDispose } from '@vueuse/core'\n\nexport function useTimeout() {\n  let timeoutHandle: number | undefined\n\n  const registerTimeout = (fn: (...args: any[]) => any, delay: number) => {\n    cancelTimeout()\n    timeoutHandle = globalThis.setTimeout(fn, delay)\n  }\n  const cancelTimeout = () => {\n    if (timeoutHandle === undefined) return\n\n    globalThis.clearTimeout(timeoutHandle)\n    timeoutHandle = undefined\n  }\n\n  tryOnScopeDispose(() => cancelTimeout())\n\n  return {\n    registerTimeout,\n    cancelTimeout,\n  }\n}\n"],"mappings":";;;;AAEA,SAAgB,aAAa;CAC3B,IAAI;CAEJ,MAAM,mBAAmB,IAA6B,UAAkB;EACtE,eAAe;EACf,gBAAgB,WAAW,WAAW,IAAI,MAAM;;CAElD,MAAM,sBAAsB;EAC1B,IAAI,kBAAkB,KAAA,GAAW;EAEjC,WAAW,aAAa,cAAc;EACtC,gBAAgB,KAAA;;CAGlB,CAAA,GAAA,aAAA,yBAAwB,eAAe,CAAC;CAExC,OAAO;EACL;EACA;EACD"}