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/locale/bs.js

@@ -0,0 +1,24 @@
+// Bosnian [bs]
+import dayjs from '../index';
+var locale = {
+  name: 'bs',
+  weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split('_'),
+  months: 'januar_februar_mart_april_maj_juni_juli_august_septembar_oktobar_novembar_decembar'.split('_'),
+  weekStart: 1,
+  weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
+  monthsShort: 'jan._feb._mar._apr._maj._jun._jul._aug._sep._okt._nov._dec.'.split('_'),
+  weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
+  ordinal: function ordinal(n) {
+    return n;
+  },
+  formats: {
+    LT: 'H:mm',
+    LTS: 'H:mm:ss',
+    L: 'DD.MM.YYYY',
+    LL: 'D. MMMM YYYY',
+    LLL: 'D. MMMM YYYY H:mm',
+    LLLL: 'dddd, D. MMMM YYYY H:mm'
+  }
+};
+dayjs.locale(locale, null, true);
+export default locale;