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jackandClaude Fable 5
8af6fc2d5f
Every inbound relay event was Schnorr-verified TWICE, both times on the main actor: once in NostrRelayManager.handleParsedMessage and again in each NostrInboundPipeline / GeoPresenceTracker handler. Each verification re-serializes the event JSON, hashes it, and runs a secp256k1 Schnorr verify, so busy geohashes paid double crypto on the UI thread. Geohash gift-wrap NIP-17 decryption (two ECDH+ChaCha layers) also ran on the main actor. Changes: - NostrRelayManager now owns a serial off-main inbound pipeline (AsyncStream + single consumer task): frames are parsed and verified in arrival order off the main actor, preserving per-subscription delivery order. This is the single verification point for the whole inbound path; downstream handlers only ever see verified events. - Dedup stays two-phase and unpoisonable: a cheap main-actor duplicate LOOKUP runs before verification (duplicate fan-in from several relays never pays for crypto — previously every duplicate was verified), and events are RECORDED as seen only after the signature verifies, so a forged-signature copy can never suppress the genuine event. - NostrInboundPipeline and GeoPresenceTracker drop their redundant re-verification; geohash gift-wrap decryption moves off the main actor following the existing account-mailbox Task.detached pattern (atomic main-actor check-and-record, then decrypt off-main, then hop back for state updates). - Tests: relay-level coverage for tampered gift wraps and for in-order delivery of back-to-back frames; pipeline-level tampered-signature tests move to the relay boundary where the invariant now lives; the mock relay connection queues frames emitted before receive re-arms. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>