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/dayjs/esm/plugin/arraySupport/index.d.ts

@@ -0,0 +1,10 @@
+import { PluginFunc } from 'dayjs/esm'
+
+declare module 'dayjs/esm' {
+  interface ConfigTypeMap {
+    arraySupport: [number?, number?, number?, number?, number?, number?, number?]
+  }
+}
+
+declare const plugin: PluginFunc
+export = plugin

frontend/node_modules/dayjs/esm/plugin/arraySupport/index.js

@@ -0,0 +1,33 @@
+export default (function (o, c, dayjs) {
+  var proto = c.prototype;
+
+  var parseDate = function parseDate(cfg) {
+    var date = cfg.date,
+        utc = cfg.utc;
+
+    if (Array.isArray(date)) {
+      if (utc) {
+        if (!date.length) {
+          return new Date();
+        }
+
+        return new Date(Date.UTC.apply(null, date));
+      }
+
+      if (date.length === 1) {
+        return dayjs(String(date[0])).toDate();
+      }
+
+      return new (Function.prototype.bind.apply(Date, [null].concat(date)))();
+    }
+
+    return date;
+  };
+
+  var oldParse = proto.parse;
+
+  proto.parse = function (cfg) {
+    cfg.date = parseDate.bind(this)(cfg);
+    oldParse.bind(this)(cfg);
+  };
+});