SiranDev

Current README.md is lack of some docs. Need to add examples for HTTP API implementation. Also, must add list of exports - [ ] Add examples - [ ] Package...

Provide support for custom complex data types

### Environment node: 20.11.1 h3: 1.11.1 ### Reproduction https://stackblitz.com/edit/github-d9z5tl-zkmmw7?file=app.ts ### Describe the bug Regarding [docs](https://h3.unjs.io/guide/event-handler#error-handling), I expect to see `message` field in response when it passed to `createError`. Not sure,...