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/meshoptimizer/meshopt_encoder.d.ts

@@ -0,0 +1,23 @@
+// This file is part of meshoptimizer library and is distributed under the terms of MIT License.
+// Copyright (C) 2016-2026, by Arseny Kapoulkine (arseny.kapoulkine@gmail.com)
+export type ExpMode = 'Separate' | 'SharedVector' | 'SharedComponent' | 'Clamped';
+
+export const MeshoptEncoder: {
+	supported: boolean;
+	ready: Promise<void>;
+
+	reorderMesh: (indices: Uint32Array, triangles: boolean, optsize: boolean) => [Uint32Array, number];
+	reorderPoints: (positions: Float32Array, positions_stride: number) => Uint32Array;
+
+	encodeVertexBuffer: (source: Uint8Array, count: number, size: number) => Uint8Array;
+	encodeVertexBufferLevel: (source: Uint8Array, count: number, size: number, level: number, version?: number) => Uint8Array;
+	encodeIndexBuffer: (source: Uint8Array, count: number, size: number) => Uint8Array;
+	encodeIndexSequence: (source: Uint8Array, count: number, size: number) => Uint8Array;
+
+	encodeGltfBuffer: (source: Uint8Array, count: number, size: number, mode: string, version?: number) => Uint8Array;
+
+	encodeFilterOct: (source: Float32Array, count: number, stride: number, bits: number) => Uint8Array;
+	encodeFilterQuat: (source: Float32Array, count: number, stride: number, bits: number) => Uint8Array;
+	encodeFilterExp: (source: Float32Array, count: number, stride: number, bits: number, mode?: ExpMode) => Uint8Array;
+	encodeFilterColor: (source: Float32Array, count: number, stride: number, bits: number) => Uint8Array;
+};