Classify a confirmation message as submitted, pending, reserved or completed from caller or default
https://agents.writerslogic.com/api/v1/confirmation-stateOverview
Reads a confirmation page, email or API message and decides which state it states: submitted, pending, reserved or completed, using phrase lists the caller supplies (preferred, because wording is provider-specific) plus an optional default English list. Matches are whole-word, case- and typography-insensitive, returned with offsets in UTF-16, code points, UTF-8 bytes and graphemes, and a match inside a negation scope ('not yet confirmed') is ignored and reported as negated. T