Docker Compose v2 no longer requires the version field and shows warnings.
Removes version: '3.8' from both docker-compose.yml and docker-compose.integration.yml
for cleaner configuration.
Redis was included but not actually used by the video processor.
Only PostgreSQL is needed for Procrastinate job queue functionality.
- Remove redis service from docker-compose.yml
- Remove Redis dependencies from app and demo services
- Update README to reflect simplified service architecture