Remove orphan entities

Removes orphan songs, albums, artists, broken links, and related metadata (identifiers, files). Requires an admin JWT.

curl -X DELETE "https://loading/api/admin/orphans"

{
  "property1": 0,
  "property2": 0
}

{
  "error": "Validation failed"
}

{
  "error": "Validation failed"
}