Merged PR 4568: Adds flag to identify invoices/credit notes that are posted in Hyperline

# Description

Adds flag to identify invoices/credit notes that are posted in Hyperline.
For Invoices, these need to be ACCREC and follow a convention of 20XX-Y
For Credit Notes, these need to be ACCRECCREDIT and follow a convention of CN-20XX-Y

# 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: #28146

models/intermediate/xero/schema.yml

@@ -7,12 +7,33 @@ models:
         data_tests:
           - not_null
           - unique
+      - name: is_invoice_posted_in_hyperline
+        data_type: boolean
+        description: |
+          Indicates whether the invoice has been posted in Hyperline. 
+          An invoice is considered posted in Hyperline if it has an 
+          invoice type equal to ACCREC and follows the naming convention
+          20XX-Y, where 20XX is the posting year and Y is an autoincremental number.
+        data_tests:
+          - not_null
+
   - name: int_xero__credit_notes
     columns:
       - name: id_credit_note
         data_tests:
           - not_null
           - unique
+      - name: is_credit_note_posted_in_hyperline
+        data_type: boolean
+        description: |
+          Indicates whether the credit note has been posted in Hyperline. 
+          A credit note is considered posted in Hyperline if it has a 
+          credit note type equal to ACCRECCREDIT and follows the naming convention
+          CN-20XX-Y, where CN refers to Credit Note, 20XX is the posting year and 
+          Y is an autoincremental number.
+        data_tests:
+          - not_null
+
   - name: int_xero__invoice_line_items
     columns:
       - name: id_line_item
@@ -153,6 +174,20 @@ models:
         data_tests:
           - not_null
 
+      - name: is_document_posted_in_hyperline
+        data_type: boolean
+        description: |
+          Indicates whether the document has been posted in Hyperline. 
+          A document is considered posted in Hyperline if it follows this logic:
+          - For invoices, if the invoice type equals to ACCREC and the document number
+            follows the naming convention 20XX-Y, where 20XX is the posting year and Y is 
+            an autoincremental number.
+          - For credit notes, if the credit note type equal to ACCRECCREDIT and the 
+            document number follows the naming convention CN-20XX-Y, where CN refers to 
+            Credit Note, 20XX is the posting year and Y is an autoincremental number.
+        data_tests:
+          - not_null
+
       - name: reference
         data_type: character varying
         description: ""