Update asset character

curl --request PATCH \
  --url https://api.fal.ai/v1/assets/characters/{character_id} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Alice",
  "reference_images": [
    "019e6d0a-e5be-7b82-b329-35ae64296902"
  ]
}
'

{
  "character": {
    "id": "d7tatpsregjaga2cf3d0",
    "type": "character",
    "name": "Alice",
    "description": "A character with red hair and a blue jacket",
    "icon": "folder",
    "color": "blue",
    "cover_image_url": "https://v3b.fal.media/files/b/0a9b4900/PDbTGyzqRh1aijW2WQiY9_opengraph-1%20%281%29.png",
    "character_identifier": "alice",
    "is_favorited": false,
    "created_at": "2026-05-23T20:00:00.000Z",
    "updated_at": "2026-05-23T20:00:00.000Z",
    "asset_count": null,
    "reference_images": [
      "https://v3b.fal.media/files/b/0a9b4900/PDbTGyzqRh1aijW2WQiY9_opengraph-1%20%281%29.png"
    ]
  }
}