feat: required assets button

[matthewwalsh0]

Summary

Add a new Send Calls - Required Assets button to the EIP-5792 send calls section for testing the auxiliaryFunds.requiredAssets capability.

Changes

• Add new button that sends a wallet_sendCalls request with the requiredAssets capability
• Button is only enabled when connected to Mainnet
• Request includes 0.1 USDC as a required asset

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Note

Low Risk
Low risk UI/test harness change that adds an optional capabilities.auxiliaryFunds.requiredAssets payload to wallet_sendCalls requests, with enablement gated to connected Mainnet only.

Overview
Adds a new “Send Calls – Required Assets” action in the EIP-5792 sendCalls UI that submits wallet_sendCalls with capabilities.auxiliaryFunds.requiredAssets (0.1 USDC) for capability testing.

Updates request submission to accept an optional capabilities object and adds button enable/disable logic that only allows the new test button when connected and on Mainnet (reacting to connection and chainChanged events).

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