Add single-sourced connected client monitoring docs (#459)

* Rename file for consistency with Self-managed

* Update playbook for single-sourced content

* Add connected client monitoring single sourced content

* Sync with docs main (25.3)

* Update include directive since 25.3 beta is now in main

Author: kbatuigas

modules/ROOT/nav.adoc

@@ -514,6 +514,8 @@
 ***** xref:reference:rpk/rpk-cluster/rpk-cluster-config-list.adoc[]
 ***** xref:reference:rpk/rpk-cluster/rpk-cluster-config-set.adoc[]
 ***** xref:reference:rpk/rpk-cluster/rpk-cluster-config-status.adoc[]
+**** xref:reference:rpk/rpk-cluster/rpk-cluster-connections.adoc[]
+***** xref:reference:rpk/rpk-cluster/rpk-cluster-connections-list.adoc[]
 **** xref:reference:rpk/rpk-cluster/rpk-cluster-logdirs.adoc[]
 ***** xref:reference:rpk/rpk-cluster/rpk-cluster-logdirs-describe.adoc[]
 **** xref:reference:rpk/rpk-cluster/rpk-cluster-info.adoc[]

modules/get-started/pages/whats-new-cloud.adoc

@@ -12,6 +12,10 @@ This page lists new features added to Redpanda Cloud.
 
 You can now create xref:get-started:cluster-types/serverless.adoc[Serverless clusters] on Google Cloud Platform (GCP). Serverless on GCP is in a glossterm:beta[] release. 
 
+=== Connected client monitoring
+
+You can view details about Kafka client connections using `rpk` or the Data Plane API. This allows you to view detailed information about active client connections on a cluster, and identify and troubleshoot problematic clients. For more information, see the xref:manage:cluster-maintenance/manage-throughput.adoc#view-connected-client-details[connected client details] example in the Manage Throughput guide.
+
 === Redpanda Connect updates
 
 Redpanda Connect provides a simplified xref:develop:connect/connect-quickstart.adoc[quickstart] experience in the UI that helps you to start building data pipelines. The quickstart wizard creates pipelines to stream data into and out of Redpanda, populating the required YAML configuration automatically.

modules/manage/pages/cluster-maintenance/configure-availability.adoc

@@ -0,0 +1,5 @@
+= Configure Client Connections
+:page-aliases: manage:cluster-maintenance/configure-availability.adoc
+:description: Learn about guidelines for configuring client connections in Redpanda clusters for optimal availability.
+
+include::ROOT:manage:cluster-maintenance/configure-client-connections.adoc[tag=single-source]

modules/manage/pages/cluster-maintenance/configure-client-connections.adoc

@@ -0,0 +1,3 @@
+= rpk cluster connections list
+
+include::ROOT:reference:rpk/rpk-cluster/rpk-cluster-connections-list.adoc[tag=single-source]

modules/reference/pages/rpk/rpk-cluster/rpk-cluster-connections-list.adoc

@@ -0,0 +1,3 @@
+= rpk cluster connections
+
+include::ROOT:reference:rpk/rpk-cluster/rpk-cluster-connections.adoc[tag=single-source]