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/plugin/objectSupport.d.ts

@@ -0,0 +1,48 @@
+import { PluginFunc } from 'dayjs'
+
+declare const plugin: PluginFunc
+export = plugin
+
+declare module 'dayjs' {
+    interface Dayjs {
+        set(argument: object): Dayjs
+        add(argument: object): Dayjs
+        subtract(argument: object): Dayjs
+    }
+
+    interface ConfigTypeMap {
+        objectSupport: {
+            years?: number | string;
+            year?: number | string;
+            y?: number | string;
+
+            months?: number | string;
+            month?: number | string;
+            M?: number | string;
+
+            days?: number | string;
+            day?: number | string;
+            d?: number | string;
+
+            dates?: number | string;
+            date?: number | string;
+            D?: number | string;
+
+            hours?: number | string;
+            hour?: number | string;
+            h?: number | string;
+
+            minutes?: number | string;
+            minute?: number | string;
+            m?: number | string;
+
+            seconds?: number | string;
+            second?: number | string;
+            s?: number | string;
+
+            milliseconds?: number | string;
+            millisecond?: number | string;
+            ms?: number | string;
+        }
+    }
+}