TDD Workflow for Rust Projects

Enforce strict Test-Driven Development: Red → Green → Refactor

Workflow Steps

1. RED: Write failing test first

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_parse_session_metadata() {
        let path = Path::new("tests/fixtures/session.jsonl");
        let metadata = extract_metadata(path).unwrap();