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/Renderer/PassState.js

@@ -0,0 +1,57 @@
+/**
+ * The state for a particular rendering pass.  This is used to supplement the state
+ * in a command being executed.
+ *
+ * @private
+ * @constructor
+ */
+function PassState(context) {
+  /**
+   * The context used to execute commands for this pass.
+   *
+   * @type {Context}
+   */
+  this.context = context;
+
+  /**
+   * The framebuffer to render to.  This framebuffer is used unless a {@link DrawCommand}
+   * or {@link ClearCommand} explicitly define a framebuffer, which is used for off-screen
+   * rendering.
+   *
+   * @type {Framebuffer}
+   * @default undefined
+   */
+  this.framebuffer = undefined;
+
+  /**
+   * When defined, this overrides the blending property of a {@link DrawCommand}'s render state.
+   * This is used to, for example, to allow the renderer to turn off blending during the picking pass.
+   * <p>
+   * When this is <code>undefined</code>, the {@link DrawCommand}'s property is used.
+   * </p>
+   *
+   * @type {boolean}
+   * @default undefined
+   */
+  this.blendingEnabled = undefined;
+
+  /**
+   * When defined, this overrides the scissor test property of a {@link DrawCommand}'s render state.
+   * This is used to, for example, to allow the renderer to scissor out the pick region during the picking pass.
+   * <p>
+   * When this is <code>undefined</code>, the {@link DrawCommand}'s property is used.
+   * </p>
+   *
+   * @type {object}
+   * @default undefined
+   */
+  this.scissorTest = undefined;
+
+  /**
+   * The viewport used when one is not defined by a {@link DrawCommand}'s render state.
+   * @type {BoundingRectangle}
+   * @default undefined
+   */
+  this.viewport = undefined;
+}
+export default PassState;