docs: update infrastructure docs to reflect Celery/Redis implementation
- Update "Current State" table: Celery, Beat, Flower, Redis now production-ready
- Update "What We Need to Add": removed Celery/Redis, added S3 and Sentry as priorities
- Add Celery commands section to development environment
- Update services table with Redis, Celery, Flower ports
- Update Docker Compose services section with all Celery services
- Update Migration Path: Phase 1 & 2 marked as COMPLETE
- Update Next Steps: focus on S3, Sentry, CloudFlare
- Fix Celery app path in systemd services (app.core.celery_config)
- Add Flower systemd service configuration
- Add queue flags to Celery worker command
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Samir Boulahtit
12b79c1ff0