Adedd formid as unique id for reservations

.gitignore

@@ -20,3 +20,6 @@ test_data/*
 
 # ignore secrets
 secrets.yaml
+
+# ignore db
+alpinebits.db

output.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <OTA_ResRetrieveRS xmlns="http://www.opentravel.org/OTA/2003/05" Version="7.000">
   <ReservationsList>
-    <HotelReservation CreateDateTime="2025-09-29T07:21:12.768928+00:00" ResStatus="Requested" RoomStayReservation="true">
-      <UniqueID Type="14" ID="6b34fe24ac2ff811"/>
+    <HotelReservation CreateDateTime="2025-09-29T07:33:12.122570+00:00" ResStatus="Requested" RoomStayReservation="true">
+      <UniqueID Type="14" ID="e084006b-ae83-4e4d-b2f5-074118cdb3b1"/>
       <RoomStays>
         <RoomStay>
           <GuestCounts>

src/alpine_bits_python/db.py

@@ -26,6 +26,7 @@ class Reservation(Base):
     __tablename__ = 'reservations'
     id = Column(Integer, primary_key=True)
     customer_id = Column(Integer, ForeignKey('customers.id'))
+    form_id = Column(String, unique=True)
     start_date = Column(Date)
     end_date = Column(Date)
     num_adults = Column(Integer)

src/alpine_bits_python/main.py

@@ -46,6 +46,10 @@ def main():
             os.makedirs(db_dir, exist_ok=True)
         # The DB file will be created by SQLAlchemy if it doesn't exist, but ensure directory exists
 
+        # for now we delete the existing DB for clean testing
+        if os.path.exists(db_path):
+            os.remove(db_path)
+            print(f"Deleted existing SQLite DB at {db_path} for clean testing.")
     # Init DB
     init_db(config)
 
@@ -144,6 +148,7 @@ def main():
 
     db_reservation = DBReservation(
         customer_id=db_customer.id,
+        form_id=data.get("formId"),
         start_date=date.fromisoformat(start_date) if start_date else None,
         end_date=date.fromisoformat(end_date) if end_date else None,
         num_adults=num_adults,
@@ -159,9 +164,12 @@ def main():
     # Success - use None instead of object() for cleaner XML output
     success = None
 
-    # UniqueID
+    # UniqueID, we are using the formid as a stable unique id
+    form_id = data.get("formId")
+
+    # hardcoding the type to 14 is allowed because 15 is only for cancellations and we don't handle those
     unique_id = ab.OtaResRetrieveRs.ReservationsList.HotelReservation.UniqueId(
-        type_value=ab.UniqueIdType2.VALUE_14, id="6b34fe24ac2ff811"
+        type_value=ab.UniqueIdType2.VALUE_14, id=form_id
     )
 
     time_span = ab.OtaResRetrieveRs.ReservationsList.HotelReservation.RoomStays.RoomStay.TimeSpan(