Prevent TA panel refresh when changing timeframes

- Removed automatic TA reload when switching timeframes
- TA panel now only loads on initial page load and when manually refreshed
- User must click Refresh button to update TA after timeframe change

src/api/dashboard/static/js/ui/chart.js

@@ -580,7 +580,7 @@ async loadTA() {
             document.getElementById('priceChange').className = 'stat-value ' + (change >= 0 ? 'positive' : 'negative');
             document.getElementById('dailyHigh').textContent = this.statsData.high_24h.toFixed(2);
             document.getElementById('dailyLow').textContent = this.statsData.low_24h.toFixed(2);
-        }
+}
     }
     
     switchTimeframe(interval) {
@@ -595,7 +595,7 @@ async loadTA() {
         
         this.allData.delete(interval);
         this.loadInitialData();
-        this.loadTA();
+        // Don't reload TA on timeframe switch - let user refresh manually
         
         window.clearSimulationResults?.();
         window.updateTimeframeDisplay?.();