Copilot suggestion for jsonrpc

[mpolitzer]

Copilot said:

handleGetMatchAdvanced slices params.Parent[2:] to remove the 0x prefix and leaves a TODO. Since config.ToHashFromString already parses/validates the value, consider reusing that parsed hash (or update GetMatchAdvanced to accept 0x-prefixed hex) to avoid duplicating parsing logic and relying on string slicing in a request handler.

-		params.TournamentAddress, params.IDHash, params.Parent[2:]) // TODO: use parsed value
+		params.TournamentAddress, params.IDHash, strings.TrimPrefix(params.Parent, "0x"))