heal-cli 0.2.1

Hook-driven Evaluation & Autonomous Loop — code-health harness CLI for AI coding agents
Documentation 
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//! HEAL observer crate — metric collection (LOC, AST complexity, churn,
//! duplication, doc skew). v0.1 foundation only ships the trait surface;
//! concrete observers land in subsequent TODO items.

use serde::{Deserialize, Serialize};

pub mod change_coupling;
pub mod churn;
pub mod complexity;
pub mod duplication;
pub mod git;
pub mod hotspot;
pub mod lang;
pub mod lcom;
pub mod loc;
mod walk;

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
pub struct ObservationMeta {
    pub name: &'static str,
    pub version: u32,
}

/// Marker trait for metric observers. Each observer reads the project tree
/// (and possibly git history) and produces a structured payload to be
/// appended to `.heal/history/*.jsonl`.
pub trait Observer {
    type Output: Serialize;

    fn meta(&self) -> ObservationMeta;
    fn observe(&self, project_root: &std::path::Path) -> anyhow::Result<Self::Output>;
}