## feat: release version 0.2.0

- Add Message Queue system with retry logic
- Implement Circuit Breaker for BlueSky API resilience
- Add Prometheus/Grafana monitoring system
- Refactor configuration management
- Enhance test coverage and infrastructure
- Update project documentation to English
- Add `CONTRIBUTING.md` and `CHANGELOG.md`

## Breaking changes:

- Switched from MariaDB to PostgreSQL (`init.sql` in PostgreSQL standard)
- Configuration structure changed
- Environment variables updated