//! Error Conversion Example
//!
//! Demonstrates how to transform standard library errors into rich `CodexError`
//! diagnostics using the `IntoCodex` trait.
use ;
use fs;
/// Attempts to read a configuration file, converting IO errors to `CodexErrors`.
///
/// # Returns
/// A `Result` containing the file content or a diagnostic `CodexError`.
/// Entry point demonstrating the error conversion flow.