fix bugs

app.py

@@ -143,7 +143,7 @@ def fetchImage():
                 part_name, 0
             )  # Default to 0 if part not in dict
             repair_cost = (damage_percentage / 100) * 10 * base_cost
-            total_cost += repair_cost
+            total_cost += round(repair_cost, ndigits=1)
 
             print(
                 f"Damage {i + 1} - {part_name}: {damage_percentage:.2f}% damaged, Cost: ${repair_cost:.2f}"