Sync InvenTree part links to Bambuddy archives

README.md

@@ -117,6 +117,22 @@ OVERWRITE_PART_IMAGES=false
 
 Set `OVERWRITE_PART_IMAGES=true` if Bambuddy thumbnails should replace existing part images.
 
+## Bambuddy External Links
+
+When `SYNC_ARCHIVE_EXTERNAL_LINK=true`, the service writes the InvenTree part page URL into Bambuddy archive `external_url`.
+
+The default link format is:
+
+```text
+<INVENTREE_WEB_URL or INVENTREE_BASE_URL>/web/part/<part_id>/
+```
+
+Existing non-InvenTree external links are preserved unless:
+
+```env
+OVERWRITE_ARCHIVE_EXTERNAL_LINK=true
+```
+
 ## Useful Endpoints
 
 ```text