Create documentation and examples for environment types

**Summary**: Develop comprehensive documentation, examples, and best practices for using environment types effectively.

**Acceptance Criteria**:
- [ ] Environment type concept documentation and architecture guide
- [ ] Step-by-step tutorials for common environment type scenarios
- [ ] Best practices guide for environment type design and usage
- [ ] Example configurations for different organizational patterns
- [ ] Migration guide for existing projects to adopt environment types
- [ ] Integration examples with popular CI/CD platforms