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/lodash-es/seq.default.js

@@ -0,0 +1,20 @@
+import at from './wrapperAt.js';
+import chain from './chain.js';
+import commit from './commit.js';
+import lodash from './wrapperLodash.js';
+import next from './next.js';
+import plant from './plant.js';
+import reverse from './wrapperReverse.js';
+import tap from './tap.js';
+import thru from './thru.js';
+import toIterator from './toIterator.js';
+import toJSON from './toJSON.js';
+import value from './wrapperValue.js';
+import valueOf from './valueOf.js';
+import wrapperChain from './wrapperChain.js';
+
+export default {
+  at, chain, commit, lodash, next,
+  plant, reverse, tap, thru, toIterator,
+  toJSON, value, valueOf, wrapperChain
+};