Adds estimate gas limit for transaction batch using simulation API

[vinistevam]

Explanation

This PR adds simulateGasBatch support to the Transaction Controller, enabling sequential gas estimation for nestedTransactions within a batch. When both useHook and requireApproval are true, the method simulates each transaction, calculates the total and individual gas limits, and stores the result in state for further use in the UI or execution logic.

Changes

Transaction Controller

• Added simulateGasBatch to estimate gas for each transaction in a batch sequentially.
• Integrated simulateGasBatch into the addTransactionBatch flow, triggered when useHook and requireApproval are true.
• Extended state to store total and per-transaction gas limits from simulation.
• Updated unit tests to cover batch and gas simulation logic.

References

• Related to https://github.com/MetaMask/MetaMask-planning/issues/4696

Changelog

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