Update app.py

app.py

@@ -34,10 +34,10 @@ def predict_sentiment(text):
 def process_file(file):
     df = pd.read_csv(file.name)
 
-    if "text" not in df.columns:
+    if "Review" not in df.columns:
         return "CSV must contain a 'text' column.", None
 
-    df["predicted_sentiment"] = df["text"].astype(str).apply(predict_sentiment)
+    df["predicted_sentiment"] = df["Review"].astype(str).apply(predict_sentiment)
 
     # Optional evaluation if ground truth exists
     f1 = None