Chat-side integration of the LEZ-backed RLN mix protocol:
- src/chat/delivery/waku_client.nim: mount waku_mix with onchain
RLN spam protection wired to logos_core_client fetchers; gate
the first publish on (a) gifter status confirmation, (b)
cushion of 2 poll intervals after confirmation, and (c) proof
root stability in the local valid_roots window; wrap mix
lightpush in withTimeout so vanished SURB replies surface as
Err instead of pinning the send coroutine.
- src/chat/client.nim: surface sendBytes errors via asyncSpawn
wrapped try/except instead of discarding the future (was
hiding every mix-publish failure).
- chat-side gifter client invocation (RLN membership service
wire format, EIP-191 ethereum-allowlist auth).
- Background membership status watcher that reconciles the
optimistic leaf returned by the gifter against the chain's
authoritative leaf via the status RPC.
Simulation harness (simulations/mix_lez_chat/):
- Spin up sequencer + run_setup + 4 mix nodes (one of which
runs the gifter service) + chat sender + chat receiver.
- SIM_NETWORK={local,testnet}, SIM_SLIM for testnet (reuses
shipped config_account + cached payment_account), Docker
image + GHCR for cross-platform testing.
- Strict mix-pool readiness gate, kademlia + RLN root activity
checks, gifter EIP-191 auth fixture, slim-mode submodule
minimization.
- TREE_ID_HEX pinned to the canonical testnet deployment.
Submodule bumps:
- vendor/nwaku to 8e6ba04 (LEZ-backed RLN mix + 2-phase gifter).
- vendor/logos-lez-rln to 950f287 (SPEL RLN program + mix sim
infrastructure + canonical testnet deploy).
Docs:
- RUN_SLIM_TESTNET.md: slim sim recipe.
- cleanup/MODE_A_GIFTER_SLOT_BUG.md: per-signer nonce collision
postmortem driving the queue+worker fix.
Add rust-bundle, a single staticlib crate that depends on both libchat
and rln as rlibs. This ensures rustc links Rust std exactly once,
eliminating duplicate symbol errors on all platforms. Nim targets link
against liblogos_chat_bundle.a; Nix uses a bundleDrv instead of
separate libchat and rln derivations.
Reference: https://doc.rust-lang.org/reference/linkage.html#mixed-rust-and-foreign-codebases
