Merged PR 2171: Adding Guest Journey metrics by deal id

Adding the 6 Guest Journey metrics by deal id by creating the model `int_core__monthly_guest_journey_history_by_deal`

The structure for the deal id detail follows yesterday's approach on bookings, namely `int_core__monthly_booking_history_by_deal`, but considering the metric computation of the guest journey, namely `int_core__mtd_guest_journey_metrics`.

It also adds the dbt tests ensuring that date and id_deal are not null and that the combination of both is unique.

Related work items: #17689

models/intermediate/core/schema.yaml

@@ -167,6 +167,29 @@ models:
         tests:
           - not_null
 
+  - name: int_core__monthly_guest_journey_history_by_deal
+    description: |
+      This model contains the historic information regarding the guest journey for each deal id. 
+      It's used for the business KPIs in the view by deal id. Data is aggregated at the last
+      day of the month, or up to yesterday if it's the current month.
+    tests: 
+      - dbt_utils.unique_combination_of_columns:
+          combination_of_columns:
+            - date
+            - id_deal
+
+    columns:
+      - name: date
+        data_type: date
+        description: The last day of the month or yesterday for historic guest journey metrics.
+        tests:
+          - not_null
+
+      - name: id_deal
+        data_type: character varying
+        description: Id of the deal associated to the host. 
+        tests:
+          - not_null
 
   - name: int_core__mtd_booking_metrics
     description: |