Pipeline health API endpoint

[matt-bedda]

Overview

Add GET /api/pipeline-health endpoint that runs pipeline-doctor.js and returns structured health data for the dashboard Pipeline Health tab.

Implementation

The dashboard already has a Pipeline Health tab that expects this endpoint. Currently it 404s gracefully.

Option A: Shell out to pipeline-doctor.js

import { execSync } from "child_process";

// In router handler:
const output = execSync("node /home/mwhit/clawd/job-hunt/pipeline-doctor.js --json", {
  timeout: 30000,
  encoding: "utf-8"
});
const data = JSON.parse(output);

Option B: Read last-run JSON files directly

Read state/*-last-run.json files from the job-hunt directory.

Response Format

The dashboard expects:

{
  "pipelines": [
    {
      "id": "greenhouse",
      "name": "Greenhouse",
      "status": "healthy|degraded|down",
      "inventory": 24391,
      "applied24h": 222,
      "failed24h": 3,
      "successRate": 98.7,
      "blockers": ["41 permanent failures"]
    }
  ]
}

Config

The pipeline-doctor.js path should be configurable (or auto-detected from claude.workingDirectory).

Priority: P1

This is the only dashboard tab that doesn't work yet.