Getting docker build ready again

src/alpine_bits_python/main.py

@@ -126,10 +126,13 @@ def main():
     utm_comment = " | ".join(utm_comment_text) if utm_comment_text else None
     offer = data.get("field:angebot_auswaehlen")
 
+    contact_id = data.get("contact", {}).get("contactId")
+
     # Save customer and reservation to DB
     db_customer = DBCustomer(
         given_name=first_name,
         surname=last_name,
+        contact_id=contact_id,
         name_prefix=name_prefix,
         email_address=email,
         phone=phone_number,
@@ -189,6 +192,8 @@ def main():
         
     )
 
+    
+
     # CustomerData
     phone_numbers = [(phone_number, PhoneTechType.MOBILE)] if phone_number else []
     customer_data = CustomerData(