Merged PR 4107: First version of accounting aggregations

# Description

Creates a seed to define how to aggregate the different revenue/cost sources, at account code level.

This is propagated to the sales denom mart in intermediate.

This is not complete, but should be a good starting point and it enables moving forward with a couple of tickets regarding KPIs revenue refactor and further Finance reporting, by just keeping a single source of truth. It's mostly focusing on the Don't Repeat Yourself

# 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.

First version of accounting aggregations - not complete

Related work items: #26618

seeds/schema.yml

@@ -174,3 +174,90 @@ seeds:
         data_type: numeric
         description: |
           How much we charge per night in this time range.
+
+  - name: stg_seed__accounting_aggregations
+    description: |
+      Account codes and their respective aggregations.
+    config:
+      column_types:
+        account_code: varchar(3)
+
+    columns:
+      - name: account_code
+        data_type: character varying
+        description: |
+          The account code for this aggregation. This is the code that is used
+          in the accounting system.
+
+        data_tests:
+          - not_null
+          - unique
+          - dbt_expectations.expect_column_values_to_match_regex:
+              regex: "^[0-9]{3}$"
+
+      - name: root_aggregation
+        data_type: character varying
+        description: |
+          The root aggregation for this account code. This is the main
+          aggregation that is used to retrieve low-level data.
+
+        data_tests:
+          - not_null
+          - accepted_values:
+              values:
+                - Other Invoiced Revenue
+                - Verification Fees
+                - Listing Fees
+                - Booking Fees
+                - Athena API
+                - E-Deposit API
+                - Guesty Resolutions
+                - Basic Protection
+                - Waiver Pro
+                - Id Verification
+                - Protection Plus
+                - Screening Plus
+                - Sex Offenders Check
+                - Protection Pro
+                - Basic Screening
+                - Damage Host-Waiver Payments
+                - Damage Waiver Fees
+                - Deposit Fees
+                - Check In Cover
+                - Resolution Process for Protection Services
+                - Resolution Process for Deposit Management Services
+                - Basic Waiver
+                - Waiver Plus
+                - Basic Damage Deposit
+
+      - name: kpis_aggregation
+        data_type: character varying
+        description: |
+          The default macro-aggregation for Invoiced KPIs.
+
+        data_tests:
+          - not_null
+          - accepted_values:
+              values:
+                - Unknown
+                - Invoiced Operator Revenue
+                - Invoiced API Revenue
+                - Damage Host-Waiver Payments
+                - Accounting Resolutions
+                - Accounting Guest Revenue
+
+      - name: financial_aggregation
+        data_type: character varying
+        description: |
+          The default macro-aggregation for Financial reporting.
+
+        data_tests:
+          - not_null
+          - accepted_values:
+              values:
+                - Unknown
+                - Guest Screening and Protection
+                - Mediation and Resolution
+                - Damage Host-Waiver Payments
+                - Guest Products
+                - Deposit Management