[matthewwalsh0]

Explanation

Server quote providers either execute the target calls or decline the request, and the server strategy declined non-atomic requests outright, so flows whose calls no provider can run were unsupported.

• Server quote requests now set supportsDeferredCalls, so a provider that can't execute the calls returns a funds-only quote (callsDeferred: true) instead of declining.
• These quotes are flagged requiresSecondLeg, and the calls are submitted separately on the target chain once the funds settle.
• The server strategy now accepts non-atomic requests.
• Every strategy (Relay, Server, Fiat) submits its second leg through a shared submitSecondLeg util, which:
  • Reads the settled amount and block from the settlement transaction's transfer logs.
  • Throws when there is no settlement hash or no matching transfer, rather than falling back to the quote minimum or the fiat order amount.
  • Applies CHOMP race handling for Money Account deposits, which previously only ran for fiat.
• Non-atomic quotes now settle funds on the account that executes the calls rather than the funding account, shared by the Relay and Server strategies.
• ma-vault-deposit is removed in favour of the shared util.
• Server provider names are typed as plain strings, so new backend providers need no client change.

References

Stacked on #10404.

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

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Note

High Risk
Changes multi-leg settlement, amount resolution, and completion semantics across Relay, Server, and Fiat paths; stricter on-chain reads can fail flows that previously fell back to provider-reported amounts.

Overview
Adds non-atomic pay flows where a quote may only move funds and the target calls run afterward on the chain where they settled.

Quotes can now carry requiresSecondLeg (driven by server callsDeferred / supportsDeferredCalls, explicit atomic: false, etc.). Relay, Server, and Fiat (including direct mUSD vault) all submit that follow-up through shared submitSecondLeg, replacing ma-vault-deposit. Settlement amounts come only from on-chain transfer logs via a settlement hash; missing hash or transfer fails instead of using ramp cryptoAmount or quote minimums.

Server quotes settle on the executing account (txParams.from) vs the payer, Money Account post-quote drops the forwarding transfer, and non-atomic requests are allowed. isIntentComplete is set after a successful second leg (Relay/Server). Relay zeros origin network fees for Polymarket deposit-wallet Predict withdraws. CHOMP race recovery moves into withChompRecovery around second-leg vault deposits. Server provider IDs are plain strings instead of an enum.

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