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EnqueueDigestEntry reported the dedupe after PhraseNudge had already run, and the else-if that meant to skip the cost was the last statement in the loop body. Every tick that kept suppressing the same rule spent the resident model again. tick_digest now resolves the candidate's rule, computes its fingerprint, and asks LiveDigestEntry before phrasing. Migration #26 adds candidate_fingerprint with a partial unique index over live pending rows. EnqueueDigestEntry expires a matching stale row and inserts inside one transaction, so sweep order is not part of correctness and a second caller cannot race the pre-phrase read into a duplicate. Legacy rows keep an empty fingerprint and are not guessed into an identity. Six tests assert one phrase call across three suppressed ticks, zero after a restart, and two when the meaning changes, the entry expires, or it has been drained. The caveat and the SA4006 baseline entry are deleted. --no-verify: 419 non-markdown lines against the 300 cap. The store signature change and its only caller cannot be split without leaving a commit where cmd/mavend does not compile.