Fix: Prevent indicators from being deleted during TF switch

- Remove window.renderIndicatorList() call from renderTA()
- This was triggering initIndicatorPanel during each TF switch
- Added logging to removeIndicatorById to track unexpected deletions
- Removed indicator configuration UI from TA panel (sidebar handles this now)

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

@@ -496,16 +496,27 @@ window.clearAllIndicators = function() {
 }
 
 function removeIndicatorById(id) {
+    console.log(`[removeIndicatorById] Attempting to remove indicator: ${id}`);
+    console.log('Call stack:', console.trace());
+    
     const idx = activeIndicators.findIndex(a => a.id === id);
-    if (idx < 0) return;
+    if (idx < 0) {
+        console.warn(`[removeIndicatorById] Indicator ${id} not found in array`);
+        return;
+    }
+    
+    console.log(`[removeIndicatorById] Removing indicator at index ${idx}`);
     
     activeIndicators[idx].series?.forEach(s => {
         try { window.dashboard?.chart?.removeSeries(s); } catch(e) {}
     });
     
+    // Remove the specific indicator, don't clear the whole array
     activeIndicators.splice(idx, 1);
     
-if (configuringId === id) {
+    console.log(`[removeIndicatorById] After removal, array now has ${activeIndicators.length} indicators`);
+    
+    if (configuringId === id) {
         configuringId = null;
     }
     
@@ -794,6 +805,12 @@ export function drawIndicatorsOnChart() {
         return;
     }
     
+    if (activeIndicators.length === 0) {
+        console.error('⚠️ drawIndicatorsOnChart: activeIndicators is EMPTY!');
+        console.error('⚠️ This means indicators were lost during TF switch!');
+        console.trace('Call stack showing where we are:');
+    }
+    
     const currentInterval = window.dashboard.currentInterval;
     const candles = window.dashboard.allData.get(currentInterval);