Merged PR 3419: Adds Host Resolutions metrics in new KPIs

# Description

Adds 2 new metrics:
- xero_host_resolution_amount_paid_in_gbp
- xero_host_resolution_payment_count

Effectively it will split the "real" invoicing sources of revenue from "host resolution payments". This was already reading from 2 different Xero models (bank transactions vs. sales).

We have as usual:
- 1 Daily metric model
- 2 MTD/Monthly metric model
- 2 MTD/Monthly agg model (I already changed the name to agg instead of aggregated)
- 1 test to compare the values match the current setup

# 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.
- [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: #23565

models/intermediate/kpis/int_kpis__metric_daily_host_resolutions.sql

@@ -0,0 +1,29 @@
+{% set resolutions_host_payment_account_name = "('RESOLUTIONS - HOST PAYMENT')" %}
+
+{{ config(materialized="table", unique_key=["date", "id_deal"]) }}
+select
+    -- Unique Key --
+    ixbt.transaction_date_utc as date,
+    coalesce(ixc.id_deal, 'UNSET') as id_deal,
+    -- Dimensions --
+    coalesce(
+        icd.main_billing_country_iso_3_per_deal, 'UNSET'
+    ) as main_billing_country_iso_3_per_deal,
+    coalesce(
+        icmas.active_accommodations_per_deal_segmentation, 'UNSET'
+    ) as active_accommodations_per_deal_segmentation,
+    -- Metrics --
+    sum(ixbtli.line_amount_wo_taxes_in_gbp) as xero_host_resolution_amount_paid_in_gbp,
+    count(distinct ixbt.id_bank_transaction) as xero_host_resolution_payment_count
+from {{ ref("int_xero__bank_transactions") }} as ixbt
+inner join
+    {{ ref("int_xero__bank_transaction_line_items") }} as ixbtli
+    on ixbt.id_bank_transaction = ixbtli.id_bank_transaction
+    and upper(ixbtli.account_name) in {{ resolutions_host_payment_account_name }}
+left join {{ ref("int_xero__contacts") }} as ixc on ixc.id_contact = ixbt.id_contact
+left join {{ ref("int_core__deal") }} as icd on ixc.id_deal = icd.id_deal
+left join
+    {{ ref("int_kpis__dimension_daily_accommodation") }} as icmas
+    on ixc.id_deal = icmas.id_deal
+    and ixbt.transaction_date_utc = icmas.date
+group by 1, 2, 3, 4