Add changing cars

ac-server-scripts-api.py

@@ -166,15 +166,17 @@ class Handler(BaseHTTPRequestHandler):
         import json
         try:
             data = json.loads(body)
+            print("Received cars:", data)        
             success, message = update_cars(data.get("cars", []))
+            return True
         except json.JSONDecodeError:
             self.send_response(400)
             self.send_header("Content-Type", "application/json")
             self.end_headers()
             self.wfile.write(b'{"error":"invalid json"}')
-            return
+            print("Invalid JSON received")
+            return False
 
-        print("Received cars:", data)
     
     def send_image(self, img_path: str):
             if os.path.exists(img_path):