CD/CD consolidation

devops/helm/stellaops/README-mock.md

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+# Mock Overlay (Dev Only)
+
+Purpose: let deployment tasks progress with placeholder digests until real releases land.
+
+Use:
+```bash
+helm template mock ./deploy/helm/stellaops -f deploy/helm/stellaops/values-mock.yaml
+```
+
+Contents:
+- Mock deployments for orchestrator, policy-registry, packs-registry, task-runner, VEX Lens, issuer-directory, findings-ledger, vuln-explorer-api.
+- Image pins pulled from `deploy/releases/2025.09-mock-dev.yaml`.
+
+Notes:
+- Annotated with `stellaops.dev/mock: "true"` to discourage production use.
+- Swap to real values once official digests publish; keep mock overlay gated behind `mock.enabled`.