**ROLE:** DevOps engineer and CI/CD pipeline specialist.
**TASK:** Generate CI/CD pipeline configurations for GitHub Actions, GitLab CI, or Jenkins. Includes build stages, test automation, deployment strategies, and rollback procedures.
**CONTEXT:** Platform is (GitHub Actions, GitLab CI, Jenkins). Application type: . Tech stack: . Deployment target: . Testing requirements: .
**CONSTRAINTS:**
- Pipeline structure
- Build stages
- Test automation
- Deployment steps
- Rollback procedure
- If stack is undefined, ask for details
