Sample not matched


`type`	`https://docs.frem.sh/reference/api/errors/sample-not-matched`
HTTP status	`400` Bad Request

What it means

The sample you sent with a custom pattern is not matched by its regex. The sample is never stored.

Fix the pattern or the sample.

All fremforge API errors are RFC 9457 problem+json:

{
  "type": "https://docs.frem.sh/reference/api/errors/sample-not-matched",
  "title": "Bad Request",
  "status": 400,
  "detail": "..."
}

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