Metadata correction for 2025.jeptalnrecital-ealm.0

### JSON data block

```json
{
"anthology_id": "2025.jeptalnrecital-ealm.0",
"authors": [
{
"first": "Antoine",
"last": "Gourru",
"id": "antoine-gourru"
},
{
"first": "Julien",
"last": "Velcin",
"id": "julien-velcin"
},
{
"first": "Caroline",
"last": "Brun",
"id": "caroline-brun"
},
{
"first": "Vassilina",
"last": "Nikoulina",
"id": "vassilina-nikoulina"
},
{
"first": "Thibaud",
"last": "Leteno",
"id": "thibaud-leteno"
},
{
"first": "Irina",
"last": "Proskurina",
"id": "irina-proskurina"
}
],
"authors_old": "Frédéric Bechet | Adrian-Gabriel Chifu | Karen Pinel-sauvagnat | Benoit Favre | Eliot Maes | Diana Nurbakova",
"authors_new": "Antoine Gourru | Julien Velcin | Caroline Brun | Vassilina Nikoulina | Thibaud Leteno | Irina Proskurina"
}
```

The issue names anthology_id 2025.jeptalnrecital-ealm.0 and provides the old and replacement author metadata, but no file, test, or entry point. Locate that anthology record in the repository, compare its authors with the JSON block, and verify that the stored metadata matches authors_new when done.

Written by the indexing model from the issue text.