Add proper ES6 exports for indicator panel modules

- Export addIndicator for module imports
- Export removeIndicatorById for module imports
- Export removeIndicatorByIndex for module imports
- Fix circular reference issues with window assignments
- Simplify export statements to work with ES6 modules

This fixes the 'does not provide export named addIndicator' error.

src/api/dashboard/static/js/ui/indicators-panel-new.js

@@ -701,128 +701,25 @@ window.showIndicatorConfig = function(id) {
 window.applyIndicatorConfig = function() {
     // No-op - config is applied immediately
 };
-window.showIndicatorConfigByIndex = function(index) {
-    if (index >= 0 && index < activeIndicators.length) {
-        configuringId = activeIndicators[index].id;
-        renderIndicatorPanel();
-    }
-};
-
-function renderIndicatorOnPane(indicator, meta, instance, candles, paneIndex, lineStyleMap) {
-    const results = instance.calculate(candles);
-    indicator.series = [];
-    
-    const lineStyle = lineStyleMap[indicator.params._lineType] || LightweightCharts.LineStyle.Solid;
-    const lineWidth = indicator.params._lineWidth || 2;
-    
-    const firstNonNull = results?.find(r => r !== null && r !== undefined);
-    const isObjectResult = firstNonNull && typeof firstNonNull === 'object';
-    
-    meta.plots.forEach((plot, plotIdx) => {
-        if (isObjectResult) {
-            const hasData = results.some(r => r && r[plot.id] !== undefined && r[plot.id] !== null);
-            if (!hasData) return;
-        }
-        
-        const plotColor = indicator.params[`_color_${plotIdx}`] || plot.color || '#2962ff';
-        
-        const data = [];
-        for (let i = 0; i < candles.length; i++) {
-            let value;
-            if (isObjectResult) {
-                value = results[i]?.[plot.id];
-            } else {
-                value = results[i];
-            }
-            
-            if (value !== null && value !== undefined) {
-                data.push({
-                    time: candles[i].time,
-                    value: value
-                });
-            }
-        }
-        
-        if (data.length === 0) return;
-        
-        let series;
-        
-        let plotLineStyle = lineStyle;
-        if (plot.style === 'dashed') plotLineStyle = LightweightCharts.LineStyle.Dashed;
-        else if (plot.style === 'dotted') plotLineStyle = LightweightCharts.LineStyle.Dotted;
-        else if (plot.style === 'solid') plotLineStyle = LightweightCharts.LineStyle.Solid;
-        
-        if (plot.type === 'histogram') {
-            series = window.dashboard.chart.addSeries(LightweightCharts.HistogramSeries, {
-                color: plotColor,
-                priceFormat: { type: 'price', precision: 4, minMove: 0.0001 },
-                priceLineVisible: false,
-                lastValueVisible: false
-            }, paneIndex);
-        } else if (plot.type === 'baseline') {
-            series = window.dashboard.chart.addSeries(LightweightCharts.BaselineSeries, {
-                baseValue: { type: 'price', price: plot.baseValue || 0 },
-                topLineColor: plot.topLineColor || plotColor,
-                topFillColor1: plot.topFillColor1 || plotColor,
-                topFillColor2: '#00000000',
-                bottomFillColor1: '#00000000',
-                bottomColor: plot.bottomColor || '#00000000',
-                lineWidth: plot.width !== undefined ? plot.width : lineWidth,
-                lineStyle: plotLineStyle,
-                title: plot.title || '',
-                priceLineVisible: false,
-                lastValueVisible: plot.lastValueVisible !== false
-            }, paneIndex);
-        } else {
-            series = window.dashboard.chart.addSeries(LightweightCharts.LineSeries, {
-                color: plotColor,
-                lineWidth: plot.width !== undefined ? plot.width : lineWidth,
-                lineStyle: plotLineStyle,
-                title: plot.title || '',
-                priceLineVisible: false,
-                lastValueVisible: plot.lastValueVisible !== false
-            }, paneIndex);
-        }
-        
-        series.setData(data);
-        indicator.series.push(series);
-    });
-}
-
-let indicatorPanes = new Map();
-let nextPaneIndex = 1;
-
-// Legacy support
-window.renderIndicatorList = function() {
-    renderIndicatorPanel();
-};
-
-window.renderIndicatorConfig = function(indicator) {
-    // Called by chart.js, redirect to new panel
-    const meta = getIndicatorMeta(indicator);
-    if (!meta) return;
-    
-    const configEl = document.getElementById('configForm');
-    if (configEl) {
-        configEl.innerHTML = renderIndicatorConfig(indicator, meta);
-    }
-};
-
-window.applyIndicatorConfig = function() {
-    // No-op - config is applied immediately
-};
-
 window.removeIndicator = function() {
     if (!configuringId) return;
     removeIndicatorById(configuringId);
 };
 
-window.removeIndicatorByIndex = function(index) {
+// Export functions for module imports
+export const addIndicator = window.addIndicator;
+export const removeIndicatorById = window.removeIndicatorById;
+
+// Helper function for remove by index
+function removeIndicatorByIndex(index) {
     if (index < 0 || index >= activeIndicators.length) return;
     removeIndicatorById(activeIndicators[index].id);
-};
+}
 
-window.addIndicator = addIndicator;
+// Assign to window for backward compatibility
-window.toggleIndicator = addIndicator;
+window.toggleIndicator = window.addIndicator;
-window.removeIndicatorById = removeIndicatorById;
+window.removeIndicatorByIndex = removeIndicatorByIndex;
-window.drawIndicatorsOnChart = drawIndicatorsOnChart;
+window.drawIndicatorsOnChart = drawIndicatorsOnChart;
+
+// No additional window assignments needed - functions are already on window
+// Exports are now available for module import