Validates the full Sprint 28 deliverable in one script:
1. api-reference.md has ≥240 endpoints
2. HSTS header set on stage
3. Integration suite 10/10 passes
4. quality-watchdog last status = 🟢
5. Hangfire ≥13 recurring jobs registered
Exit 0 if all pass; runs in ~2 минуты.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
