Support attachments against SupplierPart (#10724)

* Support attachments against SupplierPart

* Update CHANGELOG.md

* API update

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,11 +1,14 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 420
+INVENTREE_API_VERSION = 421
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 INVENTREE_API_TEXT = """
 
+v421 -> 2025-10-31 : https://github.com/inventree/InvenTree/pull/10724
+    - Allow upload of attachments against SupplierPart objects via the API
+
 v420 -> 2025-10-26 : https://github.com/inventree/InvenTree/pull/10675
     - Adds optional "customer_detail" filter to SalesOrderShipment API endpoint
 

src/backend/InvenTree/company/models.py

@@ -669,6 +669,7 @@ class SupplierPartManager(models.Manager):
 
 
 class SupplierPart(
+    InvenTree.models.InvenTreeAttachmentMixin,
     InvenTree.models.MetadataMixin,
     InvenTree.models.InvenTreeBarcodeMixin,
     InvenTree.models.InvenTreeNotesMixin,

src/frontend/src/pages/company/SupplierPartDetail.tsx

@@ -32,6 +32,7 @@ import {
 } from '../../components/items/ActionDropdown';
 import InstanceDetail from '../../components/nav/InstanceDetail';
 import { PageDetail } from '../../components/nav/PageDetail';
+import AttachmentPanel from '../../components/panels/AttachmentPanel';
 import NotesPanel from '../../components/panels/NotesPanel';
 import type { PanelType } from '../../components/panels/Panel';
 import { PanelGroup } from '../../components/panels/PanelGroup';
@@ -283,6 +284,10 @@ export default function SupplierPartDetail() {
           <Skeleton />
         )
       },
+      AttachmentPanel({
+        model_type: ModelType.supplierpart,
+        model_id: supplierPart?.pk
+      }),
       NotesPanel({
         model_type: ModelType.supplierpart,
         model_id: supplierPart?.pk