DOC-1586 single source Manage Throughput in cloud docs (#388)

* DOC-1586 single source Manage Throughput in cloud docs

* update playbook

* single source rpk cluster quotas

* rebuild

* rebuild

* add to what's new

* remove UI from What's New

* revert playbook

Author: micheleRP

modules/ROOT/nav.adoc

@@ -405,6 +405,7 @@
 *** xref:manage:cluster-maintenance/config-cluster.adoc[]
 *** xref:manage:audit-logging.adoc[]
 **** xref:manage:audit-logging/audit-log-samples.adoc[]
+*** xref:manage:cluster-maintenance/manage-throughput.adoc[]
 ** xref:manage:monitor-cloud.adoc[]
 ** xref:manage:mountable-topics.adoc[]
 ** xref:manage:rpk/index.adoc[Redpanda CLI]
@@ -493,6 +494,10 @@
 **** 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[]
+**** xref:reference:rpk/rpk-cluster/rpk-cluster-quotas.adoc[]
+***** xref:reference:rpk/rpk-cluster/rpk-cluster-quotas-alter.adoc[]
+***** xref:reference:rpk/rpk-cluster/rpk-cluster-quotas-describe.adoc[]
+***** xref:reference:rpk/rpk-cluster/rpk-cluster-quotas-import.adoc[]
 **** xref:reference:rpk/rpk-cluster/rpk-cluster-storage.adoc[]
 ***** xref:reference:rpk/rpk-cluster/rpk-cluster-storage-cancel-mount.adoc[]
 ***** xref:reference:rpk/rpk-cluster/rpk-cluster-storage-list-mount.adoc[]

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

@@ -15,6 +15,10 @@ A new xref:manage:iceberg/iceberg-topics-aws-glue.adoc[integration with AWS Glue
 
 See xref:manage:iceberg/rest-catalog/index.adoc[] for supported Iceberg REST catalog integrations.
 
+=== Manage throughput
+
+Redpanda Cloud now lets you xref:manage:cluster-maintenance/manage-throughput.adoc[manage throughput] configuration at the broker and client levels. You can manage client quotas with xref:reference:rpk/rpk-cluster/rpk-cluster-quotas.adoc[`rpk cluster quotas`] or with the Kafka API. When no quotas apply, the client has unlimited throughput.
+
 == July 2025
 
 === Iceberg topics in Redpanda Cloud: GA

modules/manage/pages/cluster-maintenance/manage-throughput.adoc

@@ -0,0 +1,4 @@
+= Manage Throughput
+:description: Manage the throughput of Kafka traffic with configurable properties.
+
+include::ROOT:manage:cluster-maintenance/manage-throughput.adoc[tag=single-source]

modules/reference/pages/rpk/rpk-cluster/rpk-cluster-quotas-alter.adoc

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

modules/reference/pages/rpk/rpk-cluster/rpk-cluster-quotas-describe.adoc

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

modules/reference/pages/rpk/rpk-cluster/rpk-cluster-quotas-import.adoc

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

modules/reference/pages/rpk/rpk-cluster/rpk-cluster-quotas.adoc

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