Merged PR 4050: Onboarding MRR Model

# Description

Creates onboarding MRR Model
It contains the expected MRR by country and by number of listings per deal (according to HubSpot data) per date. The date is the last day of the month where it considers data from the previous 12 months up to date.

# 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.
- [x] I have checked for DRY opportunities with other models and docs.
- [x] I've picked the right materialization for the affected models.

# Other

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

Related work items: #26223

models/intermediate/cross/int_monthly_onboarding_mrr_metrics.sql

@@ -0,0 +1,63 @@
+with
+    deal_attributes as (
+        select
+            id_deal,
+            coalesce(
+                main_billing_country_iso_3_per_deal, 'UNSET'
+            ) as main_billing_country_iso_3_per_deal,
+            effective_deal_start_month,
+            hubspot_deal_cancellation_month,
+            coalesce(
+                hubspot_listing_segmentation, 'UNSET'
+            ) as hubspot_listing_segmentation
+        from {{ ref("int_kpis__dimension_deals") }}
+        -- Exclude deals without live dates
+        where effective_deal_start_date_utc is not null
+    ),
+    monthly_revenue_per_number_of_properties as (
+        select
+            m.date,
+            coalesce(
+                d.main_billing_country_iso_3_per_deal, 'global'
+            ) as main_billing_country_iso_3,
+            coalesce(
+                d.hubspot_listing_segmentation, 'global'
+            ) as hubspot_listing_segmentation,
+            count(*) as deals_active_in_month,
+            sum(coalesce(m.total_revenue_in_gbp, 0)) as total_revenue_in_gbp
+        from {{ ref("int_monthly_aggregated_metrics_history_by_deal") }} m
+        inner join
+            deal_attributes d
+            on m.id_deal = d.id_deal
+            and date_trunc('month', m.date)
+            >= date_trunc('month', d.effective_deal_start_month)
+            and date_trunc('month', m.date)
+            <= coalesce(d.hubspot_deal_cancellation_month, '2099-01-01')
+            and date_trunc('month', m.date)::date <> date_trunc('month', now())::date
+        where d.hubspot_listing_segmentation <> 'UNSET'
+        group by
+            rollup (
+                m.date,
+                d.hubspot_listing_segmentation,
+                d.main_billing_country_iso_3_per_deal
+            )
+        -- Exclude total date aggregation
+        having m.date is not null
+    )
+select
+    r.date,
+    r.main_billing_country_iso_3,
+    r.hubspot_listing_segmentation,
+    sum(coalesce(m.total_revenue_in_gbp, 0)) as total_revenue_in_gbp,
+    sum(m.deals_active_in_month) as total_active_months,
+    sum(coalesce(m.total_revenue_in_gbp, 0))
+    / sum(m.deals_active_in_month) as expected_mrr
+from monthly_revenue_per_number_of_properties m
+inner join
+    monthly_revenue_per_number_of_properties r
+    on r.date >= m.date
+    and r.date < m.date + interval '12 months'
+    and r.hubspot_listing_segmentation = m.hubspot_listing_segmentation
+    and r.main_billing_country_iso_3 = m.main_billing_country_iso_3
+where r.main_billing_country_iso_3 <> 'UNSET'
+group by r.date, r.hubspot_listing_segmentation, r.main_billing_country_iso_3

models/intermediate/cross/schema.yml

@@ -1706,3 +1706,76 @@ models:
       - name: is_deal_in_xero
         data_type: boolean
         description: "Flag to indicate if the deal is in Xero."
+
+  - name: int_monthly_onboarding_mrr_metrics
+    description: |
+      "This table provides data on the Onboarding Monthly Recurring Revenue (MRR). 
+      The Onboarding MRR is an estimate of the expected monthly revenue generated by 
+      each new deal. It is calculated by taking the total revenue generated by all 
+      active accounts over the last 12 months and dividing it by the number of active 
+      months for each account."
+
+    data_tests:
+      - dbt_utils.unique_combination_of_columns:
+          combination_of_columns:
+            - date
+            - main_billing_country_iso_3
+            - hubspot_listing_segmentation
+
+    columns:
+      - name: date
+        data_type: date
+        description: |
+          "Date representing the last day of the month. The metrics are calculated using data 
+          from the 12 months leading up to and including this date. Along with 
+          `main_billing_country_iso_3` and `hubspot_listing_segmentation`, this field serves 
+          as part of the primary key for the model."
+        data_tests:
+          - not_null
+          - is_last_day_of_month
+
+      - name: main_billing_country_iso_3
+        data_type: text
+        description: |
+          "Main billing country code from ISO 3166"
+        data_tests:
+          - not_null
+
+      - name: hubspot_listing_segmentation
+        data_type: text
+        description: |
+          "Segmentation based on the number of properties specified by each deal
+          in HubSpot."
+        data_tests:
+          - not_null
+          - accepted_values:
+              values:
+                - "01-05"
+                - "06-20"
+                - "21-60"
+                - "61+"
+                - "global"
+
+      - name: total_revenue_in_gbp
+        data_type: numeric
+        description: |
+          "Total revenue accumulated by all active accounts over the last 12 months."
+        data_tests:
+          - not_null
+
+      - name: total_active_months
+        data_type: numeric
+        description: |
+          "Total number of active months for all accounts over the last 12 months."
+        data_tests:
+          - not_null
+          - dbt_expectations.expect_column_values_to_be_between:
+              min_value: 0
+              strictly: false
+
+      - name: expected_mrr
+        data_type: numeric
+        description: |
+          "Expected MRR for each new deal."
+        data_tests:
+          - not_null