fix: Replace undefined update_trade_exit with update_trade

src/trading/journal.py

@@ -57,13 +57,15 @@ def handle_sell_order(ticker: str, shares_to_sell: int, exit_price: float, exit_
             
             if shares_from_position == position['shares']:
                 # Close entire position
-                update_trade_exit(
+                update_trade(
                     trade_id=position['id'],
-                    exit_price=exit_price,
-                    exit_date=exit_date,
-                    followed_rules=followed_rules,
-                    exit_reason=exit_reason,
-                    notes=notes
+                    updates={
+                        'exit_price': exit_price,
+                        'exit_date': exit_date,
+                        'followed_rules': 1 if followed_rules else 0,
+                        'exit_reason': exit_reason,
+                        'notes': notes
+                    }
                 )
             else:
                 # Split position: update original position with remaining shares