feat: add signed context oracle support#439

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hardyjosh wants to merge 12 commits intomasterfrom

feat/oracle-signed-context-v2

Commits on Apr 12, 2026

Add oracle support to rain.solver
Josh Hardy
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fix: address review feedback on oracle module
Josh Hardy
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fix: use viem instead of ethers for ABI encoding
Josh Hardy
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feat: add retry with backoff and per-URL cooloff for oracle fetching
Josh Hardy
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refactor: remove retry delays, use fail-fast with cooloff only
Josh Hardy
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refactor: move oracle health state to OracleManager class on OrderManager
Josh Hardy
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refactor: drop OracleManager class, use SharedState + standalone fns
Josh Hardy
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refactor: use Result type instead of throwing
Josh Hardy
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refactor: use existing order types, drop redundant SignedContextV1 interface
Josh Hardy
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fix: make oracle signed context actually work
Josh Hardy
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fix: handle oracle array response + thread signedContext in clear

Josh Hardy
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claude
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fix: wrap oracle ABI encoding in tuple to match alloy's abi_decode

Josh Hardy
and
claude
committed