Merged PR 3377: Adds GJ Created, Started and Completed in new KPIs flow

# Description

Adds GJ Created, Started and Completed.
Each model has:
* A Daily model
* A Monthly/MTD without dimension aggregate
* A Monthly/MTD with dimension aggregate
* A comparison vs. the current flow of KPIs in the form of a test

It's quite similar as for Created Bookings. The main difference is that 1) reads from Verification Requests table and 2) I don't compute a New Dash dimension. This helps actually validating the logic of the dimension configuration macro, which works good.

I confirm that the 3 tests of comparison vs. current data work well in my local - i.e. identical content for Global, Billing Country for these 3 metrics since 2022.

This does not include:
* Guest Journeys with Payment. I'll do this in a separated PR
* Guest Payments/Revenue. I'll do this in a separated PR

# Checklist

- [X] The edited models and dependants run properly with production data.
- [X] The edited models are sufficiently documented.
- [X] The edited models contain PK tests, and I've ran and passed them.
- [NA] I have checked for DRY opportunities with other models and docs. **Briefly discussed with Pablo, we'll leave it like this for the time being**
- [X] I've picked the right materialization for the affected models. **Runs quite fast**

# Other

- [ ] Check if a full-refresh is required after this PR is merged.

Related work items: #23453

tests/tmp_kpis_refactor_equivalent_completed_guest_journeys.sql

@@ -0,0 +1,53 @@
+{% set min_date = "2022-01-01" %}
+{% set dimensions = ("global", "by_billing_country") %}
+-- "by_number_of_listings" excluded on purpose - there's differences because of daily
+-- segmentation
+with
+    new_mtd_completed_guest_journeys as (
+        select end_date as date, dimension, dimension_value, completed_guest_journeys
+        from {{ ref("int_kpis__aggregated_mtd_completed_guest_journeys") }}
+        where
+            end_date >= '{{ min_date }}'
+            and dimension in {{ dimensions }}
+            and dimension_value <> 'UNSET'
+    ),
+    new_monthly_completed_guest_journeys as (
+        select end_date as date, dimension, dimension_value, completed_guest_journeys
+        from {{ ref("int_kpis__aggregated_monthly_completed_guest_journeys") }}
+        where
+            end_date >= '{{ min_date }}'
+            and dimension in {{ dimensions }}
+            and dimension_value <> 'UNSET'
+    ),
+    new_completed_guest_journeys as (
+        select *
+        from new_mtd_completed_guest_journeys
+        union all
+        select *
+        from new_monthly_completed_guest_journeys
+    ),
+    old_completed_guest_journeys as (
+        select date, dimension, dimension_value, completed_guest_journeys
+        from {{ ref("int_core__mtd_guest_journey_metrics") }}
+        where date >= '{{ min_date }}' and dimension in {{ dimensions }}
+    ),
+    comparison as (
+        select
+            coalesce(o.date, n.date) as date,
+            coalesce(o.dimension, n.dimension) as dimension,
+            coalesce(o.dimension_value, n.dimension_value) as dimension_value,
+            o.completed_guest_journeys as old_completed_guest_journeys,
+            n.completed_guest_journeys as new_completed_guest_journeys,
+            coalesce(o.completed_guest_journeys, 0)
+            - coalesce(n.completed_guest_journeys, 0) as diff
+        from old_completed_guest_journeys o
+        full outer join
+            new_completed_guest_journeys n
+            on o.date = n.date
+            and o.dimension = n.dimension
+            and o.dimension_value = n.dimension_value
+    )
+select *
+from comparison
+where diff <> 0
+order by date desc, abs(diff) desc

tests/tmp_kpis_refactor_equivalent_created_guest_journeys.sql

@@ -0,0 +1,53 @@
+{% set min_date = "2022-01-01" %}
+{% set dimensions = ("global", "by_billing_country") %}
+-- "by_number_of_listings" excluded on purpose - there's differences because of daily
+-- segmentation
+with
+    new_mtd_created_guest_journeys as (
+        select end_date as date, dimension, dimension_value, created_guest_journeys
+        from {{ ref("int_kpis__aggregated_mtd_created_guest_journeys") }}
+        where
+            end_date >= '{{ min_date }}'
+            and dimension in {{ dimensions }}
+            and dimension_value <> 'UNSET'
+    ),
+    new_monthly_created_guest_journeys as (
+        select end_date as date, dimension, dimension_value, created_guest_journeys
+        from {{ ref("int_kpis__aggregated_monthly_created_guest_journeys") }}
+        where
+            end_date >= '{{ min_date }}'
+            and dimension in {{ dimensions }}
+            and dimension_value <> 'UNSET'
+    ),
+    new_created_guest_journeys as (
+        select *
+        from new_mtd_created_guest_journeys
+        union all
+        select *
+        from new_monthly_created_guest_journeys
+    ),
+    old_created_guest_journeys as (
+        select date, dimension, dimension_value, created_guest_journeys
+        from {{ ref("int_core__mtd_guest_journey_metrics") }}
+        where date >= '{{ min_date }}' and dimension in {{ dimensions }}
+    ),
+    comparison as (
+        select
+            coalesce(o.date, n.date) as date,
+            coalesce(o.dimension, n.dimension) as dimension,
+            coalesce(o.dimension_value, n.dimension_value) as dimension_value,
+            o.created_guest_journeys as old_created_guest_journeys,
+            n.created_guest_journeys as new_created_guest_journeys,
+            coalesce(o.created_guest_journeys, 0)
+            - coalesce(n.created_guest_journeys, 0) as diff
+        from old_created_guest_journeys o
+        full outer join
+            new_created_guest_journeys n
+            on o.date = n.date
+            and o.dimension = n.dimension
+            and o.dimension_value = n.dimension_value
+    )
+select *
+from comparison
+where diff <> 0
+order by date desc, abs(diff) desc

tests/tmp_kpis_refactor_equivalent_started_guest_journeys.sql

@@ -0,0 +1,53 @@
+{% set min_date = "2022-01-01" %}
+{% set dimensions = ("global", "by_billing_country") %}
+-- "by_number_of_listings" excluded on purpose - there's differences because of daily
+-- segmentation
+with
+    new_mtd_started_guest_journeys as (
+        select end_date as date, dimension, dimension_value, started_guest_journeys
+        from {{ ref("int_kpis__aggregated_mtd_started_guest_journeys") }}
+        where
+            end_date >= '{{ min_date }}'
+            and dimension in {{ dimensions }}
+            and dimension_value <> 'UNSET'
+    ),
+    new_monthly_started_guest_journeys as (
+        select end_date as date, dimension, dimension_value, started_guest_journeys
+        from {{ ref("int_kpis__aggregated_monthly_started_guest_journeys") }}
+        where
+            end_date >= '{{ min_date }}'
+            and dimension in {{ dimensions }}
+            and dimension_value <> 'UNSET'
+    ),
+    new_started_guest_journeys as (
+        select *
+        from new_mtd_started_guest_journeys
+        union all
+        select *
+        from new_monthly_started_guest_journeys
+    ),
+    old_started_guest_journeys as (
+        select date, dimension, dimension_value, started_guest_journeys
+        from {{ ref("int_core__mtd_guest_journey_metrics") }}
+        where date >= '{{ min_date }}' and dimension in {{ dimensions }}
+    ),
+    comparison as (
+        select
+            coalesce(o.date, n.date) as date,
+            coalesce(o.dimension, n.dimension) as dimension,
+            coalesce(o.dimension_value, n.dimension_value) as dimension_value,
+            o.started_guest_journeys as old_started_guest_journeys,
+            n.started_guest_journeys as new_started_guest_journeys,
+            coalesce(o.started_guest_journeys, 0)
+            - coalesce(n.started_guest_journeys, 0) as diff
+        from old_started_guest_journeys o
+        full outer join
+            new_started_guest_journeys n
+            on o.date = n.date
+            and o.dimension = n.dimension
+            and o.dimension_value = n.dimension_value
+    )
+select *
+from comparison
+where diff <> 0
+order by date desc, abs(diff) desc