Fix Clear All button using event delegation

- Add clear-all button event handling to container click delegation
- Remove old event listener attachment that failed with dynamic buttons
- Clean up debug logging and warnings
- Clear All button now works correctly after indicators are added

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

@@ -357,11 +357,11 @@ function renderIndicatorPresets(indicator, meta) {
 function setupEventListeners() {
     const container = document.getElementById('indicatorPanel');
     if (!container) return;
-    
-    console.log('[IndicatorPanel] Setting up event listeners...');
-    
-    // Single event delegation handler for add button
+
     container.addEventListener('click', (e) => {
+        e.stopPropagation();
+        
+        // Add button
         const addBtn = e.target.closest('.indicator-btn.add');
         if (addBtn) {
             e.stopPropagation();
@@ -372,6 +372,28 @@ function setupEventListeners() {
             return;
         }
         
+        // Remove button
+        const removeBtn = e.target.closest('.indicator-btn.remove');
+        if (removeBtn) {
+            e.stopPropagation();
+            const id = removeBtn.dataset.id;
+            if (id && window.removeIndicatorById) {
+                window.removeIndicatorById(id);
+            }
+            return;
+        }
+        
+        // Clear all button
+        const clearAllBtn = e.target.closest('.clear-all');
+        if (clearAllBtn) {
+            if (window.clearAllIndicators) {
+                window.clearAllIndicators();
+            }
+            return;
+        }
+            return;
+        }
+        
         // Expand/collapse button
         const expandBtn = e.target.closest('.indicator-btn.expand');
         if (expandBtn) {
@@ -431,16 +453,6 @@ function setupEventListeners() {
             renderIndicatorPanel();
         });
     });
-    
-    // Clear all button
-    const clearAllBtn = container.querySelector('.clear-all');
-    if (clearAllBtn) {
-        clearAllBtn.addEventListener('click', () => {
-            window.clearAllIndicators();
-        });
-    }
-    
-    console.log('[IndicatorPanel] Event listeners setup complete');
 }
 
 // Actions
@@ -471,8 +483,6 @@ window.updateIndicatorSetting = function(id, key, value) {
 };
 
 window.clearAllIndicators = function() {
-    console.warn('clearAllIndicators() called - clearing all indicators!');
-    console.trace('Call stack:');
     activeIndicators.forEach(ind => {
         ind.series?.forEach(s => {
             try { window.dashboard?.chart?.removeSeries(s); } catch(e) {}