Two redundancies were inflating the login REQ burst (kind 30000=19 storm in
the real-env console — the cause of the slow hashtags, KNOWN_BUGS #0),
isolated with the channel-sim harness's REQ-signature + timing capture:
1. Duplicate trigger: ProfileModalController.handleAuthLogin called
subscriptions.loadSubscriptions() AND userBlocks.loadBlocks() DIRECTLY at
login, on top of the auth coordinator's gated list loads — a second,
ungated relay round-trip for each. Route them through ensureLoaded()
instead so they coalesce with the coordinator's in-flight load. Harness:
subscriptions updateFromRelays now fires ONCE at login instead of 3×
(≈3× fewer kind-30000 fetches in prod, where each is multiplied by the
relay set).
2. Fetch/decrypt coupling: a decrypt retry re-ran the full relay fetch even
though only signer availability had changed. Cache the fetched ciphertext
(_pendingDecryptEvent) and have scheduleDecryptRetry re-decrypt it via a
cachedDecryptEvent fast-path in updateFromRelays — no redundant relay
query per retry.
Validated: MODE=overload (channel drops) still decrypts blocks +
subscriptions + hashtags (DMs OK); full unit suite green; subscription loop
+ aggregation tests still pass.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
