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/@cesium/engine/Source/Scene/Tonemapper.js

@@ -0,0 +1,68 @@
+// @ts-check
+
+/**
+ * A tonemapping algorithm when rendering with high dynamic range.
+ *
+ * @enum {string}
+ */
+const Tonemapper = {
+  /**
+   * Use the Reinhard tonemapping.
+   *
+   * @type {string}
+   * @constant
+   */
+  REINHARD: "REINHARD",
+
+  /**
+   * Use the modified Reinhard tonemapping.
+   *
+   * @type {string}
+   * @constant
+   */
+  MODIFIED_REINHARD: "MODIFIED_REINHARD",
+
+  /**
+   * Use the Filmic tonemapping.
+   *
+   * @type {string}
+   * @constant
+   */
+  FILMIC: "FILMIC",
+
+  /**
+   * Use the ACES tonemapping.
+   *
+   * @type {string}
+   * @constant
+   */
+  ACES: "ACES",
+
+  /**
+   * Use the PBR Neutral tonemapping {@link https://github.com/KhronosGroup/ToneMapping/tree/main/PBR_Neutral|from Khronos}.
+   *
+   * @type {string}
+   * @constant
+   */
+  PBR_NEUTRAL: "PBR_NEUTRAL",
+};
+
+/**
+ * Validate whether the provided value is a known Tonemapper type
+ * @private
+ *
+ * @param {string} tonemapper
+ */
+export function validateTonemapper(tonemapper) {
+  return (
+    tonemapper === Tonemapper.REINHARD ||
+    tonemapper === Tonemapper.MODIFIED_REINHARD ||
+    tonemapper === Tonemapper.FILMIC ||
+    tonemapper === Tonemapper.ACES ||
+    tonemapper === Tonemapper.PBR_NEUTRAL
+  );
+}
+
+Object.freeze(Tonemapper);
+
+export default Tonemapper;