v1.4.43 W13 M-3 — `detectRefusal` runs only on the inbound
`message` each turn. `priorTurns` are loaded straight from
`coach_messages.encryptedContent` and concatenated into the
`userPrompt` transcript every reply. An injection that slipped
past the regex bank on a previous turn was re-entering the prompt
verbatim on every subsequent turn, so the model saw it on every
reply — false-negative amplification.
Re-run `detectRefusal` against each user-turn re-loaded from DB
before building the transcript. On a hit, short-circuit the SSE
with a refusal AND emit an `audit.coach.replay-injection` row so
operators have a durable signal. The audit row carries the
conversation id, turn index, and matched reason — never the
message content, so the bypass payload doesn't survive into the
audit ledger.
Marc-André Bombeck
81b1eeea8d