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/quarterOfYear/index.js

@@ -0,0 +1,41 @@
+import { Q, M, D } from '../../constant';
+export default (function (o, c) {
+  var proto = c.prototype;
+
+  proto.quarter = function (quarter) {
+    if (!this.$utils().u(quarter)) {
+      return this.month(this.month() % 3 + (quarter - 1) * 3);
+    }
+
+    return Math.ceil((this.month() + 1) / 3);
+  };
+
+  var oldAdd = proto.add;
+
+  proto.add = function (number, units) {
+    number = Number(number); // eslint-disable-line no-param-reassign
+
+    var unit = this.$utils().p(units);
+
+    if (unit === Q) {
+      return this.add(number * 3, M);
+    }
+
+    return oldAdd.bind(this)(number, units);
+  };
+
+  var oldStartOf = proto.startOf;
+
+  proto.startOf = function (units, startOf) {
+    var utils = this.$utils();
+    var isStartOf = !utils.u(startOf) ? startOf : true;
+    var unit = utils.p(units);
+
+    if (unit === Q) {
+      var quarter = this.quarter() - 1;
+      return isStartOf ? this.month(quarter * 3).startOf(M).startOf(D) : this.month(quarter * 3 + 2).endOf(M).endOf(D);
+    }
+
+    return oldStartOf.bind(this)(units, startOf);
+  };
+});