Migrate the Server Foundation Cronjobs to use Kubernetes agents instead of traditional agents.

Objective:
Enable better resource utilization and eliminate workspace cleanup issues for Server Foundation scheduled jobs.

Scope:
- Update cronjob configurations to use Kubernetes agents
- Test cronjob execution with K8s agent setup
- Verify workspace cleanup improvements
- Monitor resource utilization for scheduled jobs

Acceptance Criteria:
- [ ] Server Foundation Cronjobs successfully migrated to K8s agents
- [ ] Cronjob execution verified with K8s agent configuration
- [ ] Workspace cleanup issues resolved for scheduled jobs
- [ ] Resource utilization monitoring shows improvements
- [ ] Job scheduling and execution remains reliable

Dependencies:
- K8s agent configuration established
- Access to cronjob configuration systems

This task was created as part of Epic breakdown for ACM-26264. Generated by Claude Code.