Add support for attachments in notes

update_content_with_image_reference.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+import sys
+from nextcloud_mcp_server.client import NextcloudClient
+
+def main():
+    note_id = 420  # ID of the note with the image attachment
+    
+    # Create client
+    client = NextcloudClient.from_env()
+    
+    # First get the current note
+    try:
+        note = client.notes_get_note(note_id=note_id)
+        print(f"Retrieved note: {note['title']}")
+        
+        # Update the note content to include a direct reference to the image
+        updated_content = f"""# Note with Image Attachment
+
+This note demonstrates attaching images to Nextcloud Notes.
+
+An image will be attached to this note as a demonstration.
+
+## Image Reference
+
+The image is attached but not displayed inline in the Notes UI. 
+Attachments in Nextcloud Notes exist as separate files in the .attachments.{note_id} 
+directory but aren't automatically embedded in the note content.
+
+You can view the image by going to the Files app and navigating to:
+/Notes/.attachments.{note_id}/sample_image.png
+
+## Orphaned Attachments
+
+When notes are deleted, their attachments remain in the system.
+This is the expected behavior of the official Nextcloud Notes app.
+"""
+        
+        # Update the note with the new content
+        updated_note = client.notes_update_note(
+            note_id=note_id,
+            etag=note['etag'],
+            content=updated_content
+        )
+        
+        print(f"Note updated successfully with image reference information.")
+        return 0
+        
+    except Exception as e:
+        print(f"Error updating note: {e}")
+        return 1
+
+if __name__ == "__main__":
+    sys.exit(main())