Add EB-Chain (Chain ID: 8721) Support

[kikaE2B]

Hello MetaMask team,

We would like to request support for EB-Chain in MetaMask.

Network Details:

• Name: EB-Chain
• Chain ID: 8721 (0x2211)
• RPC URL: https://rpc.ebcscan.net
• Block Explorer: https://ebcscan.net
• Currency Symbol: EBC
• Status: Live/Production

EB-Chain is a fully operational EVM-compatible blockchain with:
✅ Unique Chain ID (verified)
✅ HTTPS infrastructure
✅ Active block explorer
✅ Production-ready network

We have already submitted to ethereum-lists/chains for official listing.

Thank you for considering this addition.