- Add project icon and badges to README
- Update crate description to "The Rust CLI Framework"
- Add table of contents and improve section organization
- Move guide.txt to resources directory and update version reference
- Add example-completion Cargo.lock for new example
- Remove unused main.rs file
The trait now includes `build_renderer_not_found` and
`build_dispatcher_not_found`
methods for constructing error outputs. The macro generates
implementations
that create appropriate error types, removing hardcoded enum variants.