Artikelbild X von Artikel Y Änderung User Intent

# Goal
Handle user requests to edit, replace, or remove the background of an article image (e.g. "Artikelbild X von Artikel Y ändern").

# Procedure
1. Use `search_articles` to get the full hash of that article image.
2. Directly call `edit_image` with the vfsfilename `image/<hash>`.
3. When the user is asking for background removal, do NOT try to make it transparent, white is good enough.

# Upload pattern
Run this pattern in `javascript_execute` to backup the original image, delete the old image, and upload the updated image:

```js
module.exports = (async () => {
  const sku = "ARTICLE-SKU";
  const hash = "IMAGE-FULL-HASH";
  const photoNumber = 2;
  const path = `images/backupimage${photoNumber}ofArticle_${sku}.avif`;

  const image = await fetch(`/image/${hash}`);
  if (!image.ok) throw Error(`Download failed: ${image.status}`);
  fs.writeFileSync(path, Buffer.from(await image.arrayBuffer()));

  const del = await fetch(`/article/${encodeURIComponent(sku)}/image/${hash}`, {
    method: "DELETE"
  });
  if (!del.ok) throw Error(`Delete failed: ${del.status}`);

  const upload = await fetch(`/article/${encodeURIComponent(sku)}/image`, {
    method: "POST",
    headers: { "Content-Type": "image/avif" },
    body: fs.readFileSync(path)
  });

  return { path, status: upload.status, body: await upload.text() };
})();
```

# Response
In your final response to the user, inline display the backup image and the final image.