bridgevm: promote quote engine + swap store from cmd/bridge daemon#3
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The bridge is permissionless and non-custodial. Authoritative quote math and swap state must live where the validator quorum runs consensus — in this VM — not in any single daemon's local cache. This change moves both into bridgevm and exposes them via JSON-RPC so any client can reach the same settlement decisions. New RPC methods: bridge_estimateFee — authoritative quote computation bridge_submitRequest — create + quote-snapshot bridge_getStatus — read swap by id bridge_cancelRequest — idempotent cancel bridge_health — liveness probe bridge_getMPCPublicKey — threshold group public key Architecture: - QuoteEngine (quote.go) StaticPriceFeed → quorum oracle later - SwapStore (swap_store.go) in-memory genesis impl; block-persistence next - Service methods (rpc.go) JSON-RPC dispatch (snake + dot aliases) Attestation aggregation already lived in bridge_signing.go via BridgeSigner + BridgeMessageValidator — no changes needed there. LP-333 signer-set methods unchanged.
4 tasks
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Summary
bridge_estimateFee/bridge_submitRequest/bridge_getStatus/bridge_cancelRequest/bridge_health/bridge_getMPCPublicKeyRPCs serve from the VM so any client (the daemon atcmd/bridgeis one such client) reaches the same authoritative settlement.QuoteEngine(quote.go) +SwapStore(swap_store.go) are added under bridgevm with full unit + end-to-end RPC test coverage.BridgeSigner/BridgeMessageValidatoralready handled attestation aggregation so no changes were needed there.This is the chain-side half of the depermissionless+non-custodial bridge architecture refocus. The matching daemon strip lives at luxfi/bridge#z/depermissionless.
Test plan
go test ./bridgevm/... -count=1— 32 tests pass (15 new)go vet ./bridgevm/...cleangofmt -l bridgevm/cleaninternal/bchainclient — verified via cmd/bridge integration suite on luxfi/bridge#z/depermissionless