Class ProducerApi

Append one raw attributed-engagement signal (find-or-skip on {author, actor, bucket}). No-op without an active connection. The engagement tap is the eventual caller; exposed for tests and programmatic crediting.

Boot seam (idempotent): install the receive-gated command-dispatch → producer engagement tap and self-register the real-time recompute schedule. The standing cache is warmed separately by ProducerStanding.warm() (awaited in AppBootstrap before this).

The raw, per-author log reader — the unscored substrate seam.

The sync cached read — an author's recency-decayed production scalar. Neutral 0 for a non-materialized author. Keyed on the author's durable templatePath.

Re-score every author's production from the raw attributed-engagement log into the materialized aggregate — the batch the recompute schedule fires (and the producerOf cache is refreshed from).

The producer-stock projection: the decayed attributed-engagement scalar, banded, tagged 'producer'. Sync derive-on-read. InfluenceApi delegates here for the 'producer' stock.