feat: Dynamic OP Stack L1 gas via gas API

[pedronfigueiredo]

Explanation

• fetch the OP Stack supported chain list from the gas API with a static fallback so OptimismLayer1GasFeeFlow can react to remote updates
• make OracleLayer1GasFeeFlow accept an optional default oracle and throw unless subclasses override getOracleAddressForChain, removing the now-unneeded constructor in the Optimism flow
• allow Layer1GasFeeFlow.matchesTransaction to be async

References

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, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

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Note

Dynamically detects OP Stack chains via gas API (with static fallback) and refactors the L1 oracle flow with default oracle/signing while making Layer1GasFeeFlow.matchesTransaction async.

• Gas Flows:
  • OptimismLayer1GasFeeFlow: Fetches supported OP Stack chains from gas.api (/v1/supportedNetworks) with fallback to FALLBACK_OPTIMISM_STACK_CHAIN_IDS; uses base class default oracle; matchesTransaction is async.
  • OracleLayer1GasFeeFlow: Adds default OP Stack oracle address and hooks getOracleAddressForChain and shouldSignTransaction; updates signing to use Uint8Array.
  • ScrollLayer1GasFeeFlow: Overrides new hooks (oracle address, requires signing); matchesTransaction now async.
• Types/Utils:
  • Layer1GasFeeFlow.matchesTransaction returns Promise<boolean>; update getTransactionLayer1GasFee flow selection to async.
• Helpers:
  • GasFeePoller tests updated to pass messenger object and expect it in calls.
• Tests:
  • Add/adjust tests for OP Stack remote list handling, default oracle config, Scroll overrides, and async matching.
• Changelog:
  • Note change: Identify OP stack chains using gas API.

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[matthewwalsh0]

❤️