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/_createCtor.js

@@ -0,0 +1,37 @@
+var baseCreate = require('./_baseCreate'),
+    isObject = require('./isObject');
+
+/**
+ * Creates a function that produces an instance of `Ctor` regardless of
+ * whether it was invoked as part of a `new` expression or by `call` or `apply`.
+ *
+ * @private
+ * @param {Function} Ctor The constructor to wrap.
+ * @returns {Function} Returns the new wrapped function.
+ */
+function createCtor(Ctor) {
+  return function() {
+    // Use a `switch` statement to work with class constructors. See
+    // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
+    // for more details.
+    var args = arguments;
+    switch (args.length) {
+      case 0: return new Ctor;
+      case 1: return new Ctor(args[0]);
+      case 2: return new Ctor(args[0], args[1]);
+      case 3: return new Ctor(args[0], args[1], args[2]);
+      case 4: return new Ctor(args[0], args[1], args[2], args[3]);
+      case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
+      case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
+      case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
+    }
+    var thisBinding = baseCreate(Ctor.prototype),
+        result = Ctor.apply(thisBinding, args);
+
+    // Mimic the constructor's `return` behavior.
+    // See https://es5.github.io/#x13.2.2 for more details.
+    return isObject(result) ? result : thisBinding;
+  };
+}
+
+module.exports = createCtor;