Add interactive TS script to register tokens

Summary

Create a Node/TypeScript interactive script that lets an admin register tokens via the contract function:

function registerToken(AssetType assetType, address tokenAddress, address priceFeed, uint8 decimals)

enum AssetType { ETH, ERC20 }

Requirements

• File path: scripts/registertoken.ts

• Prompts the admin for:

  • Asset Type (ETH or ERC20)
  • Token Address (skip/zero address if ETH)
  • Price Feed Address (Chainlink Sepolia; link in script help)
  • Decimals (e.g., 18 for ETH/ERC20)

• Validates inputs (addresses, decimals range, etc.)

• Loads config from env:

  • RPC_URL (Sepolia)
  • PRIVATE_KEY (admin)
  • CONTRACT_ADDRESS (ZeroXBridge or Registry contract exposing registerToken)

• Displays a full transaction preview and asks for confirmation

• Sends the tx and prints:

  • hash
  • mined block number
  • gas used

• Clean exit codes (non-zero on failure)

• Include minimal ABI for registerToken + AssetType

Reference

• Chainlink Sepolia price feeds: (use to pick feed addresses)

  • https://docs.chain.link/data-feeds/price-feeds/addresses?page=1&testnetPage=1&network=ethereum#sepolia-testnet

Acceptance Criteria

• Running ts-node scripts/registertoken.ts (or pnpm ts-node …) launches an interactive flow
• Successful registration logs tx details; failures provide actionable errors
• Input validation prevents obvious misconfigs (bad address, decimals, etc.)
• Script is documented with a short header comment and usage notes