Remove all references to DragonflyDB from the codebase, environment templates, and documentation following its removal from the service architecture. This includes cleaning up Docker configurations, CI/CD workflows, and production guides.
- **Cleanup**: Deleted `dragonfly.conf` and removed DragonflyDB service from `docker-compose.yml`.
- **Environment**: Removed `DRAGONFLY_PASSWORD` and `DRAGONFLY_ADDR` from `.env.example` and `docker-entrypoint.sh`.
- **Documentation**: Updated `README.md`, `PRODUCTION_DEPLOYMENT.md`, and `QUICK_START_PRODUCTION.md` to reflect a 2-service architecture (Trackeep + Postgres).
- **CI/CD**: Updated GitHub Actions to use Go 1.25.
- **Testing**: Updated `test-production.sh` to remove DragonflyDB variable validation.
Tomas Dvorak