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/Shaders/SkyAtmosphereFS.glsl

@@ -0,0 +1,59 @@
+in vec3 v_outerPositionWC;
+
+uniform vec3 u_hsbShift;
+
+#ifndef PER_FRAGMENT_ATMOSPHERE
+in vec3 v_mieColor;
+in vec3 v_rayleighColor;
+in float v_opacity;
+in float v_translucent;
+#endif
+
+void main (void)
+{
+    float lightEnum = u_radiiAndDynamicAtmosphereColor.z;
+    vec3 lightDirection = czm_getDynamicAtmosphereLightDirection(v_outerPositionWC, lightEnum);
+
+    vec3 mieColor;
+    vec3 rayleighColor;
+    float opacity;
+    float translucent;
+
+    #ifdef PER_FRAGMENT_ATMOSPHERE
+        computeAtmosphereScattering(
+            v_outerPositionWC,
+            lightDirection,
+            rayleighColor,
+            mieColor,
+            opacity,
+            translucent
+        );
+    #else
+        mieColor = v_mieColor;
+        rayleighColor = v_rayleighColor;
+        opacity = v_opacity;
+        translucent = v_translucent;
+    #endif
+
+    vec4 color = computeAtmosphereColor(v_outerPositionWC, lightDirection, rayleighColor, mieColor, opacity);
+
+    #ifndef HDR
+        color.rgb = czm_pbrNeutralTonemapping(color.rgb);
+        color.rgb = czm_inverseGamma(color.rgb);
+    #endif
+
+    #ifdef COLOR_CORRECT
+        const bool ignoreBlackPixels = true;
+        color.rgb = czm_applyHSBShift(color.rgb, u_hsbShift, ignoreBlackPixels);
+    #endif
+
+    // For the parts of the sky atmosphere that are not behind a translucent globe,
+    // we mix in the default opacity so that the sky atmosphere still appears at distance.
+    // This is needed because the opacity in the sky atmosphere is initially adjusted based
+    // on the camera height.
+    if (translucent == 0.0) {
+        color.a = mix(color.b, 1.0, color.a) * smoothstep(0.0, 1.0, czm_morphTime);
+    }
+
+    out_FragColor = color;
+}