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/components/avatar/index.d.ts

@@ -0,0 +1,15 @@
+import { SFCWithInstall } from "../../utils/vue/typescript.js";
+import { AvatarEmits, AvatarProps, AvatarPropsPublic, avatarEmits, avatarProps } from "./src/avatar.js";
+import _default from "./src/avatar.vue.js";
+import _default$1 from "./src/avatar-group.js";
+import { AvatarGroupContext, avatarGroupContextKey } from "./src/constants.js";
+import { AvatarGroupProps, AvatarGroupPropsPublic, avatarGroupProps } from "./src/avatar-group-props.js";
+import { AvatarGroupInstance, AvatarInstance } from "./src/instance.js";
+
+//#region ../../packages/components/avatar/index.d.ts
+declare const ElAvatar: SFCWithInstall<typeof _default> & {
+  AvatarGroup: typeof _default$1;
+};
+declare const ElAvatarGroup: SFCWithInstall<typeof _default$1>;
+//#endregion
+export { AvatarEmits, AvatarGroupContext, type AvatarGroupInstance, AvatarGroupProps, AvatarGroupPropsPublic, type AvatarInstance, AvatarProps, AvatarPropsPublic, ElAvatar, ElAvatar as default, ElAvatarGroup, avatarEmits, avatarGroupContextKey, avatarGroupProps, avatarProps };