Stage 7: Dockerfile, integration tests, updated README
Dockerfile:
- Multi-stage build (golang:1.25-alpine → scratch)
- CGO_ENABLED=0, static binary, stripped with -ldflags="-w -s" (~11 MB)
Tests (13 cases, internal/api/api_test.go):
- Auth middleware: missing token, invalid token, valid token
- Bootstrap idempotency (second call → 403)
- Alert upsert: same fingerprint updates row; different fingerprints add rows
- Acknowledge: set and clear, verified via GET
- Comment ownership: only author can delete own comment (404 for others)
- Schedule conflict: duplicate date → 409; multi-date rollback on partial conflict
- Stats: totals, by-hour returns 24 slots, by-day returns 7 slots
README: quick start, Docker, env vars, Alertmanager config, full API reference
Niklas Ye
17f09558cb