Clarify mgmt cluster notes

Signed-off-by: Furkat Gofurov <[email protected]>

Author: furkatgofurov7

docs/next/modules/en/pages/user/cluster-resource-mapping.adoc

@@ -31,7 +31,7 @@ This document explains the purpose, behavior, and relationships between the foll
 
 | `management.cattle.io`
 | Management Cluster
-| Legacy Rancher cluster representation. Primarily used for RKE1 clusters and hosted Kubernetes services (AKS, EKS, GKE).
+| Legacy Rancher cluster representation. Primarily used for RKE1 clusters and hosted Kubernetes services (AKS, EKS, GKE). This should not be confused with **CAPI-managed clusters**, where "managed" refers to Cluster API's lifecycle management, not Rancher's `management.cattle.io` API group.
 |===
 
 == Relationships