cli: improve RPC error detection

[evgeniko]

at the moment rpc issues look like this:

127 |         case "NUMERIC_FAULT":
128 |         case "BUFFER_OVERRUN":
129 |             error = new RangeError(message);
130 |             break;
131 |         default:
132 |             error = new Error(message);
                          ^
error: unsupported protocol  (info={ "protocol": "" }, operation="request", code=UNSUPPORTED_OPERATION, version=6.15.0)
       info: {
  protocol: "",
},
  operation: "request",
 shortMessage: "unsupported protocol ",
       code: "UNSUPPORTED_OPERATION"

this PR tries to catch an rpc issue and change the error message to this:

RPC connection error for Seievm on Mainnet

RPC endpoint:
Error: unsupported protocol  (info={ "protocol": "" }, operation="request", code=UNSUPPORTED_OPERATION, version=6.15.0)

This error usually means the RPC endpoint is missing, invalid, or unreachable.
You can specify a private RPC endpoint by creating an overrides.json file.

Create a file named overrides.json in your project root:

{
  "chains": {
    "Seievm": {
      "rpc": "https://your-private-rpc-endpoint"
    }
  }
}

For more information about overrides.json:
  • https://wormhole.com/docs/products/token-transfers/native-token-transfers/faqs/#how-can-i-specify-a-custom-rpc-for-ntt

[dvgui]

LGTM!

[nvsriram]

LGTM! But maybe we can add this unimplemented for the other chains (Solana) or at least a TODO so we that we can just update one function to handle all errors.