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.
