Update app.py

app.py

@@ -91,7 +91,7 @@ def train(symbol: str, p_step: int):
     now = datetime.now(tz)
     today = now.date()
 
-    data = yf.download(tickers=symbol, interval='5m', period=training_period, progress=False)
+    data = yf.download(tickers=symbol, interval='1m', period=training_period, progress=False)
     if data.empty:
         return {"error": "No data received from Yahoo Finance. Try another symbol or interval."}