Transcripts in more languages

A transcript the service is not confident about is flagged, so you know to listen rather than trust the text. Sensitive values that the transcriber redacts are written in plain wording, so a transcript reads "redacted: security code" or "redacted: card number" instead of a bracketed code nobody can interpret. When anything was redacted, the notification email explains why, so a gap in a transcript does not read as a bug.