Add tests for Alpaca Historical Bars API

- Implemented tests for fetching historical bars for AAPL with different timeframes (1D, 5Min, 1H).
- Verified response structure and data integrity for each timeframe.
- Ensured that the API returns valid data and appropriate status for the requests.

app/components/TradingViewChart.tsx

@@ -10,26 +10,46 @@ export default function TradingViewChart({ ticker, data }: TradingViewChartProps
   const containerRef = useRef<HTMLDivElement>(null);
 
   useEffect(() => {
-    if (!containerRef.current) return;
+    if (!containerRef.current) {
+      console.warn(`TradingViewChart: container not ready for ${ticker}`);
+      return;
+    }
 
+    console.log(`TradingViewChart: creating chart for ${ticker} with ${data?.length ?? 0} bars`);
+    
     const chart = LightweightCharts.createChart(containerRef.current, {
-      width: containerRef.current.clientWidth,
       height: 400,
+      autoSize: true,
     });
 
-    const candlestickSeries = chart.addSeries(LightweightCharts.CandlestickSeries);
+    const candlestickSeries = chart.addSeries(LightweightCharts.CandlestickSeries, {
+      upColor: "#26a69a",
+      downColor: "#ef5350",
+      borderUpColor: "#26a69a",
+      borderDownColor: "#ef5350",
+      wickUpColor: "#26a69a",
+      wickDownColor: "#ef5350",
+    });
     
     if (data && data.length > 0) {
-      candlestickSeries.setData(data);
+      console.log(`TradingViewChart: setting data for ${ticker}`, data.slice(0, 3));
+      try {
+        candlestickSeries.setData(data);
+        console.log(`TradingViewChart: data set successfully for ${ticker}`);
+      } catch (err) {
+        console.error(`TradingViewChart: error setting data for ${ticker}`, err);
+      }
+    } else {
+      console.log(`TradingViewChart: no data to set for ${ticker}`);
     }
 
     return () => chart.remove();
-  }, [data]);
+  }, [data, ticker]);
 
   return (
     <div className="bg-white rounded-xl shadow-lg p-4">
       <h3 className="text-lg font-bold mb-3">{ticker} Price Chart</h3>
-      <div ref={containerRef} />
+      <div ref={containerRef} className="w-full" />
     </div>
   );
 }