DeskStamp carries answerer, attribution (Operator/Steward/Member per CultLib PR #72) and the decider
list; membership decides rule 5, the attribution never does. answer_desk and DeskStamp are crate-private.
The receipt names the operator only for the operator's account. counted_answer and R1 consider
options_hash. A stored answer keeps received_at, claim_in_future, request_id and a body digest;
the same (answerer, request_id) and body replays the stored outcome and writes nothing, another
body is request_id_conflict. Notes are Words (1..=4000 bytes, not blank); answered_at must be UTC.
The vector file is re-sliced byte for byte from PR #72 head 2dea6c56.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Eureka
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