Add diagnostic logging to track indicator array lifecycle during TF switch

- Log when drawIndicatorsOnChart starts and completes
- Log activeIndicators count at various stages
- Add call stack logging to identify who's calling functions
- Detect case where module is being reloaded or array is being cleared

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

@@ -799,11 +799,14 @@ export function drawIndicatorsOnChart() {
     
     console.log(`drawIndicatorsOnChart called: interval=${currentInterval}, candles=${candles?.length || 0}, activeIndicators=${activeIndicators.length}`);
     console.log('Active indicators visibility:', activeIndicators.map(i => ({id: i.id, visible: i.visible})));
+    console.trace('[drawIndicatorsOnChart] Call stack:');
     
     if (!candles || candles.length === 0) {
         return;
     }
     
+    console.log('[drawIndicatorsOnChart] Removing series complete, remaining indicators:', activeIndicators.length);
+    
     // First, remove all existing series
     activeIndicators.forEach(ind => {
         ind.series?.forEach(s => {
@@ -812,6 +815,8 @@ export function drawIndicatorsOnChart() {
         ind.series = [];
     });
     
+    console.log('[drawIndicatorsOnChart] Series arrays cleared, indicator count:', activeIndicators.length);
+    
     const lineStyleMap = { 
         'solid': LightweightCharts.LineStyle.Solid, 
         'dotted': LightweightCharts.LineStyle.Dotted,