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-locale/index.d.ts

@@ -0,0 +1,21 @@
+import { FieldPath } from "../../utils/typescript.js";
+import _default from "../../locale/lang/en.js";
+import { Language } from "../../locale/index.js";
+import { InjectionKey, MaybeRef, Ref } from "vue";
+
+//#region ../../packages/hooks/use-locale/index.d.ts
+type LocaleKeys = Exclude<FieldPath<typeof _default>, 'name' | 'el'> | (string & NonNullable<unknown>);
+type TranslatorOption = Record<string, string | number>;
+type Translator = (path: LocaleKeys, option?: TranslatorOption) => string;
+type LocaleContext = {
+  locale: Ref<Language>;
+  lang: Ref<string>;
+  t: Translator;
+};
+declare const buildTranslator: (locale: MaybeRef<Language>) => Translator;
+declare const translate: (path: LocaleKeys, option: undefined | TranslatorOption, locale: Language) => string;
+declare const buildLocaleContext: (locale: MaybeRef<Language>) => LocaleContext;
+declare const localeContextKey: InjectionKey<Ref<Language | undefined>>;
+declare const useLocale: (localeOverrides?: Ref<Language | undefined>) => LocaleContext;
+//#endregion
+export { LocaleContext, LocaleKeys, Translator, TranslatorOption, buildLocaleContext, buildTranslator, localeContextKey, translate, useLocale };