Adding guests to conversion_import

src/alpine_bits_python/db.py

@@ -365,6 +365,12 @@ class Conversion(Base):
     reservation_type = Column(String)  # type attribute (e.g., "reservation")
     booking_channel = Column(String)  # bookingChannel attribute
 
+    # Guest information from reservation XML - used for matching
+    guest_first_name = Column(String, index=True)  # firstName from guest element
+    guest_last_name = Column(String, index=True)  # lastName from guest element
+    guest_email = Column(String, index=True)  # email from guest element
+    guest_country_code = Column(String)  # countryCode from guest element
+
     # Advertising/tracking data - used for matching to existing reservations
     advertising_medium = Column(
         String, index=True