poc: confirmation intents

[matthewwalsh0]

Description

POC of "intents" support within a transaction confirmation.

This enables native or ERC-20 assets required by the transaction to be automatically obtained on approval, via integrated swaps and bridging.

Includes:

• Developer options button to trigger an example Hyperliquid deposit transaction using Arbitrum USDC.
• Automatic intent asset detection using transaction value, gas fee, and token transfer data.
• Support for dApp specified assets via the auxilaryFunds capability in a wallet_sendCalls RPC request.
• Multi-chain asset selection using standard bridging modal, filtered to assets with sufficient balance.
• Automatic default asset selection based on highest balance.
• Support for multiple target assets resulting in multiple sequential bridges.
• Use of transaction batch flow if source asset is on same chain, resulting in atomic EIP-7702 if account is upgraded.

See #6073 for associated core changes.

Changelog

CHANGELOG entry: null

Related issues

Manual testing steps

Screenshots/Recordings

Before

After

Hyperliquid.Bridge.mov

Hyperliquid.Atomic.Swap.mov

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.