Sign failed


`type`	`https://docs.frem.sh/reference/api/errors/sign-failed`
HTTP status	`500` Internal Server Error

What it means

Something failed on our side.

Example detail messages returned with this error:

See detail for the specific cause.

All fremforge API errors are RFC 9457 problem+json:

{
  "type": "https://docs.frem.sh/reference/api/errors/sign-failed",
  "title": "Internal Server Error",
  "status": 500,
  "detail": "..."
}

Branch on type, not on title or detail - those are human-readable and may be reworded.