Migrate RootRPCMethodsUI to TypeScript

[devin-ai-integration]

Migrate RootRPCMethodsUI to TypeScript

Summary

Migrated app/components/Nav/Main/RootRPCMethodsUI.js to TypeScript as part of the ongoing JS→TS migration. This complex component handles transaction approvals, swap tracking, and various wallet interactions.

Key Changes:

• Renamed .js → .tsx and removed PropTypes
• Added comprehensive TypeScript interfaces for Redux state/dispatch and component props
• Added types from @metamask/transaction-controller, @metamask/assets-controllers, and @react-navigation/native
• Created type declaration for human-standard-token-abi module
• Replaced hexToBN() calls with direct hex string usage
• Updated BigNumber operations in swap tracking logic
• Added proper error handling and null safety checks

Review & Testing Checklist for Human

⚠️ HIGH PRIORITY - 4 critical areas to verify:

• Test transaction flows end-to-end - Create ETH transfers, token transfers, and token approvals to ensure the removal of hexToBN() conversions doesn't break transaction processing
• Verify swap tracking analytics - Execute a swap and confirm the modified BigNumber calculations in trackSwaps() still produce accurate metrics
• Test smart transaction metrics collection - Confirm the async/await change in getSmartTransactionMetricsProperties() doesn't cause timing issues
• Test Ledger device integration - Verify Ledger transaction signing still works with the type changes to onConfirmationComplete

Notes

• Risk Assessment: This migration touches critical transaction handling logic with number type conversions and async operation changes that could affect core wallet functionality
• Type Safety: Added comprehensive interfaces but used some type assertions (as Token, as ExtendedTransactionParams) that should be monitored for runtime issues
• Testing Limitation: Due to the complexity of transaction flows, comprehensive local testing wasn't feasible - manual QA is essential

Link to Devin run: https://app.devin.ai/sessions/f08e85c7e1be489a9eb61927d5655f15
Requested by: @mbatchelor81

[devin-ai-integration]

🤖 Devin AI Engineer

I'll be helping with this pull request! Here's what you should know:

✅ I will automatically:

• Address comments on this PR. Add '(aside)' to your comment to have me ignore it.
• Look at CI failures and help fix them

Note: I can only respond to comments from users who have write access to this repository.

⚙️ Control Options:

• Disable automatic comment and CI monitoring