fix: Add missing condition to check for empty data in process_symbol function

src/screener/canslim_controller.py

@@ -29,7 +29,7 @@ def run_canslim_screener():
 
 def process_symbol(symbol, data, selected_screeners):
     """Process individual symbol for CANSLIM screening"""
-    if not 
+    if not data:  # Add the condition to check if data is empty
         print(f"⚠️ Warning: No data returned for {symbol}. Assigning default score.\n")
         scores = {screener: 0.25 for category in selected_screeners 
                  for screener in selected_screeners[category]}