NodeRpcClientImpl
Convenience constructor for production use (creates default HTTP client).
constructor(httpClient: HttpClient, nodeUrl: String = "http://localhost:9944", developmentMode: Boolean = true)
Parameters
httpClient
HTTP client for making requests (injectable for testing)
nodeUrl
Node RPC endpoint URL (e.g., "http://localhost:9944")
developmentMode
If true, allows HTTP to localhost (INSECURE - testing only)