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-transition-fallthrough/index.d.ts

@@ -0,0 +1,40 @@
+//#region ../../packages/hooks/use-transition-fallthrough/index.d.ts
+declare const useTransitionFallthroughEmits: readonly ["after-appear", "after-enter", "after-leave", "appear", "appear-cancelled", "before-enter", "before-leave", "enter", "enter-cancelled", "leave", "leave-cancelled"];
+/**
+ * NOTE:
+ * This is only a delegator for delegating transition callbacks.
+ * Use this at your need.
+ */
+/**
+ * Simple usage
+ *
+ * In your setups:
+ *
+ * setup() {
+ *   const fallthroughMethods = useTransitionFallthrough()
+ *   return fallthrough
+ * }
+ *
+ * In your template:
+ *
+ * <template>
+ *  <transition name="whatever" v-bind="fallthrough">
+ *    <slot />
+ *  </transition>
+ * </template>
+ *
+ */
+declare const useTransitionFallthrough: () => {
+  onAfterAppear: () => void;
+  onAfterEnter: () => void;
+  onAfterLeave: () => void;
+  onAppearCancelled: () => void;
+  onBeforeEnter: () => void;
+  onBeforeLeave: () => void;
+  onEnter: () => void;
+  onEnterCancelled: () => void;
+  onLeave: () => void;
+  onLeaveCancelled: () => void;
+};
+//#endregion
+export { useTransitionFallthrough, useTransitionFallthroughEmits };