fix: relay network fee on EIP-7702 deposits

[matthewwalsh0]

Explanation

Ensure the displayed network fee for batch Relay deposits on EIP-7702 networks is correct by passing the Relay gas fee properties to the new transaction.

References

Related to #6394

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

Propagates gas fee fields into EIP-7702 batch transactions and passes per-step gas fees in Relay batch submits, fixing source network fee computation/display for EIP-7702 deposits.

• Transaction Controller
  • EIP-7702 batch txParams now include maxFeePerGas and maxPriorityFeePerGas from the first nested transaction (src/utils/batch.ts).
  • Tests added to assert gas fee propagation in batch transactions.
• Transaction Pay (Relay)
  • Batch submit now forwards maxFeePerGas/maxPriorityFeePerGas for each step when calling addTransactionBatch (relay-submit.ts), with tests updated accordingly.
  • Fix source network fees for batch Relay deposits on EIP-7702 networks; minor logging added for total gas limits (relay-quotes.ts).

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