Cold-start fired one kind-30000 REQ per community-blacklist curator
(loadCommunityBlacklistEntries did Promise.all over references, each a
fetchLatestListEvent) — ~28-32 parallel REQs that dominated the login
relay-REQ spike and starved the feed.
A Nostr filter ORs `authors` and `#d`, so all curators collapse into ONE
batched REQ. New js/adminListBatch.js (pure, mutation-tested):
buildBatchedReferenceFilter + selectNewestEventsForReferences (newest per
author:d-tag, discards author×d-tag cross-products) +
fetchBatchedReferenceEvents (routes through the subscription manager's
list — health-gated/timeout-bounded, not raw pool). Helpers extracted to
their own module so adminListStore stays under its size cap.
Best-effort: on batch failure we return nothing and the cached admin
state carries over (readCachedAdminState).
Addresses pre-launch TODO #9 (cold-login REQ storm). Tests + mutation-
verified (newest selection, cross-product discard). 1249/1250 unit
(known UploadModal flake).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
