Merged PR 4596: Propagates Client Type to KPIs by Deal and AM models

# Description

Propagates Client Type to KPIs by Deal and AM models. This is just a distinction between Platform and APIs.

# 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: #28181

models/intermediate/cross/schema.yml

@@ -354,6 +354,17 @@ models:
         data_tests:
           - not_null
 
+      - name: client_type
+        data_type: string
+        description: |
+          Type of client. It can be either PLATFORM or API.
+        data_tests:
+          - not_null
+          - accepted_values:
+              values:
+                - PLATFORM
+                - API
+
       - name: main_deal_name
         data_type: string
         description: |
@@ -441,6 +452,17 @@ models:
         data_tests:
           - not_null
 
+      - name: client_type
+        data_type: string
+        description: |
+          Type of client. It can be either PLATFORM or API.
+        data_tests:
+          - not_null
+          - accepted_values:
+              values:
+                - PLATFORM
+                - API
+
       - name: main_deal_name
         data_type: string
         description: |
@@ -1499,6 +1521,17 @@ models:
                 - Previous 3 months
                 - Previous month
 
+      - name: client_type
+        data_type: string
+        description: |
+          Type of client. It can be either PLATFORM or API.
+        data_tests:
+          - not_null
+          - accepted_values:
+              values:
+                - PLATFORM
+                - API
+
       - name: metric_from_date
         data_type: date
         description: |