multi: Add xmr/btc swaps.#3592

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JoeGruffins:xmrswaps

Commits on Apr 23, 2026

cmd/btcxmrswap: Scaffold BTC/XMR adaptor-swap CLI.

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cmd/btcxmrswap: Flesh out happy-path scenario end-to-end.

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cmd/btcxmrswap: Implement all four scenarios.

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cmd/btcxmrswap: Add automine + README.

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docs: Asset interface design for adaptor swaps.

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asset/xmr: Add swap primitives for adaptor-swap orchestration.

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adaptorsigs/btc: Add ObserveSpend chain-scanning helper.

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adaptorsigs/btc: Add FundBroadcastTaproot helper.

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msgjson: Adaptor-swap wire message types.

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core/adaptorswap: Scaffold orchestrator state machine.

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server/swap/adaptor: Scaffold server-side adaptor state machine.

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dex: Add SwapType + ScriptableAsset to MarketInfo.

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server/market: Enforce Option 1 on adaptor-swap markets.

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adaptorswap+adaptor: Fill in client orchestrator and server coordinator.

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adaptorswap+adaptor: Add unit tests with in-memory mocks.

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core/adaptorswap: Implement refund/punish handlers.

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core: Bridge for adaptor-swap orchestrator.

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server/swap: Bridge for adaptor-swap coordinator.

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core/adaptorswap: Snapshot serialization for restart resilience.

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server/swap/adaptor: Snapshot serialization.

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server/asset/xmr: Adaptor-swap audit backend.

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server/swap: Surface AdaptorCoordinators on Swapper.

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server/swap: Wire NegotiateAdaptor into match dispatch.

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msgjson: Surface adaptor fields on Market.

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core: XMR wallet adapter for adaptor swaps.

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core: Instantiate AdaptorSwapManager and register routes.

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core: Divert match dispatch for adaptor markets.

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core/adaptorswap: Source XmrNetTag and OwnXMRSweepDest at setup.

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core: Route counterparty_address to adaptor orchestrator.

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core/adaptorswap: End-to-end setup-phase integration test.

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core: Server-mediated setup-phase integration test.

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server/swap/adaptor: Lock-phase + out-of-phase coordinator tests.

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server/swap/adaptor: Reject-malformed-setup tests.

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core/adaptorswap: Resume-from-snapshot end-to-end test.

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server/swap/adaptor: Resume-from-snapshot coordinator test.

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core: Multi-swap isolation test on AdaptorSwapManager.

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server/swap: Multi-match isolation test for AdaptorCoordinators.

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core/adaptorswap: Refund/punish path tests + FullSpendPub fix.

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core: Wire dcSender for outbound adaptor messages.

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server/swap: Register adaptor routes on AuthManager.

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server/dex: Operator config exposes adaptor-market fields.

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adaptorswap: BTC payout address rides AdaptorSetupPart.

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adaptorswap: Auto-advance lock + xmr-confirm transitions.

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adaptorswap: Spend-observation watcher closes the loop on initiator XMR sweep.

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adaptorswap: Match-outcome callback + PhasePunish IsTerminal fix.

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docs: Adaptor-swap simnet runbook.

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docs: Production-readiness TODO for adaptor swaps.

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HACK: Skip HTLC funding for adaptor-market participants.
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server/dex: Instantiate AdaptorCoordinators on Swapper.
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adaptorswap: Skip counterparty_address for participants.
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HACK: Wire per-swap BTC/XMR adapters into startAdaptorMatches.
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diag: Log adaptor message routing on both sides.
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