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fcd705e487
EmbeddedLogosDelivery now drives waku-bindings' LogosDeliveryCtx over the reliable channels API (channel_create/channel_send + onChannelMessageReceived) instead of the hand-written FFI, which is deleted (~1050 lines, including a byte-identical duplicate build.rs). Each conversation maps to one SDS channel. The node runs on a dedicated thread that is the sole caller of the ctx, with DeliveryService methods handing it commands over a queue. Every ctx call is blocking, and issuing one from libchat's inbound-draining thread — which subscribes while processing a received frame — wedges, because the call is made downstream of the node's own event dispatch. Serialising on one thread, decoupled from the caller and the callback, is what the previous transport did for the same reason, and it restores two-party delivery (join went from a deterministic hang to reliable; a message sent in an established conversation is received and displayed by the peer). chat-cli derives the node's storage path from its data dir: SDS state is a process-wide singleton keyed on that path, so two instances sharing it would each read the other's causal history and drop messages as replays. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Ai43sF2rymPFMG9iki9fwL