Send pipeline metrics to Shield

{
    "service": "manuscript",
    "pipeline": "msx-ci",
    "run_id": "123",
    "run_number": "42",
    "status": "success",
    "branch": "main",
    "commit_sha": "abc123def456",
    "triggered_by": "developer1",
    "event": "push",
    "repository": "acme/app",
    "workflow_url": "https://github.com/acme/app/actions/runs/123",
    "stages": {
        "build": "success",
        "test": "success"
    },
    "timestamp": "2026-01-07T00:00:00Z"
}

export WEBHOOK_BASE_URL="http://localhost:8000"
export GITHUB_WEBHOOK_SECRET="REPLACE_ME"

payload='{"service":"manuscript","pipeline":"msx-ci","run_id":"123","status":"success"}'

sig=$(python3 - <<'PY'
import hashlib, hmac, os
payload = os.environ["PAYLOAD"].encode("utf-8")
secret = os.environ["GITHUB_WEBHOOK_SECRET"].encode("utf-8")
print("sha256=" + hmac.new(secret, payload, hashlib.sha256).hexdigest())
PY
)

curl -sS "$WEBHOOK_BASE_URL/api/v1/webhooks/pipeline-metrics/" \
  -H "Content-Type: application/json" \
  -H "X-GitHub-Event: pipeline_metrics" \
  -H "X-GitHub-Delivery: 123" \
  -H "X-Hub-Signature-256: $sig" \
  -d "$payload"