v0.7.4

Security

• NEW-C02: Replace context.Background() in callbacks with lifecycle context — goroutines now terminate on Agent.Stop()
• NEW-C03: Fix TOCTOU race on LastConfirmedSeq — changed to atomic.Uint32
• NEW-C04: Fix Nostr subscribeLoop goto resource leak — always calls sub.Unsub()

Dependencies

• peerclaw-core v0.8.1