调整数据小数点位数显示；更换 valve 图标，上调 valvesLayer 的显示层级；特殊处理流量的样式显示

src/app/OlMap/Controls/Toolbar.tsx

@@ -403,7 +403,7 @@ const Toolbar: React.FC<ToolbarProps> = ({ hiddenButtons, queryType }) => {
             result.properties.push({
               label,
               value:
-                computedProperties[key].toFixed?.(2) || computedProperties[key],
+                computedProperties[key].toFixed?.(3) || computedProperties[key],
               unit,
             });
           }
@@ -446,7 +446,7 @@ const Toolbar: React.FC<ToolbarProps> = ({ hiddenButtons, queryType }) => {
             result.properties.push({
               label,
               value:
-                computedProperties[key].toFixed?.(2) || computedProperties[key],
+                computedProperties[key].toFixed?.(3) || computedProperties[key],
               unit,
             });
           }