`panic!("fukc");` on invalid client payload

[polina4096]

When TypeScript client somehow sends invalid data payload, the rust handler thread panics with the message "fukc". I think that's pretty important to fix ASAP for this to be usable in any real project.

[andogq]

Thanks for bringing this up! Server-side error handling is the last major thing that needs to be completed before 1.0.0 is fully ready. There's still some experimentation and design to be done to decide on a suitable API, and how it should be exposed to the TS client (see #73) for one of these cases.

Unfortunately I'm a bit short on time at the moment to work on this, however if anyone is interested in assisting with this work, I'd be happy to give guidance and merge PRs. Even if it's just a temporary fix to solve this specific issue.