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/zrender/lib/dom/HandlerProxy.d.ts

@@ -0,0 +1,22 @@
+import Eventful from '../core/Eventful';
+import { VectorArray } from '../core/vector';
+import Handler from '../Handler';
+export default class HandlerDomProxy extends Eventful {
+    dom: HTMLElement;
+    painterRoot: HTMLElement;
+    handler: Handler;
+    private _localHandlerScope;
+    private _globalHandlerScope;
+    __lastTouchMoment: Date;
+    __pointerCapturing: boolean;
+    __mayPointerCapture: VectorArray;
+    constructor(dom: HTMLElement, painterRoot: HTMLElement);
+    dispose(): void;
+    setCursor(cursorStyle: string): void;
+    __togglePointerCapture(isPointerCapturing?: boolean): void;
+}
+export interface HandlerProxyInterface extends Eventful {
+    handler: Handler;
+    dispose: () => void;
+    setCursor: (cursorStyle?: string) => void;
+}