Add back presets removed unitentionally

Fixes compile error in an app:

```
Showing last frame. Use --error-trace for full trace.

In src/serializers/transaction_serializer.cr:20:35

 20 | credit_note_id: transaction.credit_note_id,
                                  ^-------------
Error: undefined method 'credit_note_id' for Transaction
```

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [Unreleased] - 
+
+### Fixed
+- Add back presets removed unitentionally
+
 ## [0.19.1] - 2024-09-11
 
 ### Removed

src/bill/models/transaction.cr

@@ -3,9 +3,18 @@ module Bill::Transaction
     include Bill::ReferenceColumns
 
     # include Bill::BelongsToUser
-    # include Bill::CreditNoteTransactionSource
-    # include Bill::InvoiceTransactionSource
-    # include Bill::ReceiptTransactionSource
+
+    {% if Avram::Model.all_subclasses.find(&.name.== :CreditNote.id) %}
+      include Bill::CreditNoteTransactionSource
+    {% end %}
+
+    {% if Avram::Model.all_subclasses.find(&.name.== :Invoice.id) %}
+      include Bill::InvoiceTransactionSource
+    {% end %}
+
+    {% if Avram::Model.all_subclasses.find(&.name.== :Receipt.id) %}
+      include Bill::ReceiptTransactionSource
+    {% end %}
 
     column amount : Amount
     column description : String