5 - feat: add Docker support and CI/CD pipeline for Nexus registry
- Add multi-stage Dockerfile with builder/runtime separation
- Add entrypoint.sh to run Celery worker + uvicorn together
- Add docker-compose.yml for local development (app + Redis)
- Add logrotate config copy and fix silent failure
- Add REDIS_URL env var default pointing to redis service
- Enable docker stage in .gitlab-ci.yml with two Kaniko jobs:
- docker_build_app: builds and pushes app image to Nexus
- docker_mirror_redis: mirrors redis:7-alpine to Nexus
Closes #5 (closed)