docs(cds): consolidate cirrus data cloud reference docs

docs/cirrus-data-cloud/README.md

@@ -0,0 +1,31 @@
+# Cirrus Data Cloud Reference
+
+This folder contains reusable VMware/vCenter and MigrateOps reference material.
+
+## Start Here
+- VMware compute migration workflow:
+  - `vmware-migrateops-guide.md`
+- Direct vCenter VM hardware review/change workflow:
+  - `esxvm-guide.md`
+- VM lookup and FC/disk assignment workflow:
+  - `vm-lookup-and-assignment.md`
+- CMC install and uninstall reference:
+  - `cmc-install-reference.md`
+  - includes the Windows SSH + PowerShell install/reinstall path
+- iSCSI target cleanup reference:
+  - `iscsi-cleanup-reference.md`
+- Run-specific learnings:
+  - `run-learnings.md`
+- Base operation template:
+  - `templates/vmw.yaml`
+
+## Layout
+- `templates/`
+  - reusable operation template inputs and starter skeletons
+- `artifacts/logs/`
+  - runtime log artifacts
+
+## Update Policy
+- Update workflow docs when rules, defaults, or checklists change.
+- Update `run-learnings.md` only when a run adds a new lasting lesson.
+- Keep `templates/vmw.yaml` as the starting template for VMware compute MigrateOps operations.