---
plan: 06-03
phase: 06-background-worker
status: complete
type: checkpoint
completed: 2026-05-15
requirements:
  - WORK-01
  - WORK-02
  - WORK-03
  - WORK-04
---

## Summary

Human verification checkpoint passed. Developer ran `just worker` against live Postgres + MinIO, observed both required heartbeat log lines, confirmed graceful SIGINT shutdown, and verified full test suite green.

## Key Files

### Verified Behaviors
- `"worker ready"` appeared within 5 seconds of `just worker`
- `"worker heartbeat"` appeared within 10 seconds (RunOnStart:true fires immediately)
- Second `"worker heartbeat"` appeared ~60 seconds later (confirms PeriodicJob scheduler loop)
- Ctrl+C produced `"shutting down"` then `"shutdown complete"` with no panic
- `go test ./... && go build ./...` exits 0

## Requirements Closed

| Requirement | Satisfied By |
|-------------|-------------|
| WORK-01 | Worker binary starts, connects to Postgres, applies river migrations |
| WORK-02 | HeartbeatWorker runs on schedule (RunOnStart + periodic) |
| WORK-03 | Graceful shutdown: StopAndCancel(10s) + pool.Close() on SIGINT |
| WORK-04 | SlogErrorHandler registered; error logging confirmed via orphan cleanup or test |

## Self-Check: PASSED

All 4 WORK requirements satisfied with observable end-to-end proof in a live dev environment.
