feat(rh): add rh to chains

[0xfourzerofour]

Pull Request Checklist

• Did you add new tests and confirm existing tests pass? (yarn test)
• Did you update relevant docs? (docs are found in the site folder, and guidelines for updating/adding docs can be found in the contribution guide)
• Do your commits follow the Conventional Commits standard?
• Does your PR title also follow the Conventional Commits standard?
• If you have a breaking change, is it correctly reflected in your commit message? (e.g. feat!: breaking change)
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PR-Codex overview

This PR introduces two new blockchain configurations for the Robinhood network, adding support for both mainnet and testnet environments.

Detailed summary

• Added robinhoodMainnet configuration with:

  • id: 4663
  • name: "Robinhood Mainnet"
  • nativeCurrency: Ethereum (eth)
  • RPC URLs for default, public, and Alchemy

• Added robinhoodTestnet configuration with:

  • id: 46630
  • name: "Robinhood Testnet"
  • nativeCurrency: Ethereum (eth)
  • RPC URLs for default, public, and Alchemy

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