enforce-sbom

Add an SBOM Policy Enforcement (SscaEnforcement / CdSscaEnforcement) step to an existing Harness pipeline to verify SBOM attestations and apply OPA SBOM policy sets. Supports CI, Security, and CD (Deployment) including CI-only pipelines — if no Deploy stage exists, add one via Phase 3b (service, environment, infra, containerized step group) then place CdSscaEnforcement before deploy. Supports container images and…