docs: replace BYOA pages with a self-managed agent guide

modules/ROOT/nav.adoc

@@ -11,7 +11,7 @@
 ** xref:connect:architecture-patterns.adoc[Choose an Agent Architecture]
 ** xref:connect:system-prompts.adoc[Write Effective System Prompts]
 ** xref:connect:create-agent.adoc[Create an Agent]
-** xref:connect:byoa-register.adoc[Register Your Own Agent (BYOA)]
+** xref:connect:self-managed-agents.adoc[Set Up a Self-Managed Agent]
 ** xref:connect:triggers/overview.adoc[Trigger Agents from External Channels]
 *** xref:connect:triggers/microsoft-teams.adoc[Connect an Agent to Microsoft Teams]
 
@@ -55,8 +55,6 @@
 ** xref:monitor:monitor-agents.adoc[Monitor Agent Activity]
 ** xref:monitor:transcripts.adoc[See What Your Agent Did]
 ** xref:monitor:troubleshoot-ai-agents.adoc[Troubleshoot Agents]
-** xref:monitor:byoa-telemetry.adoc[Send BYOA Telemetry]
-*** xref:monitor:ingest-custom-traces.adoc[Ingest OpenTelemetry Traces from Custom Agents]
 
 * xref:control:index.adoc[Control & Govern]
 ** xref:control:guardrails/index.adoc[Set Up Guardrails]

modules/connect/pages/agents.adoc

@@ -2,4 +2,4 @@
 :description: Understand how AI agents work in the Agentic Data Plane, then create, register, and design them.
 :page-layout: index
 
-Agents are the workloads that call LLMs and tools through the Agentic Data Plane. Start with how agents work, then create a declarative agent, register one you run yourself, and apply architecture and system-prompt best practices.
+Agents are the workloads that call LLMs and tools through the Agentic Data Plane. Start with how agents work, then create a declarative agent, set up an agent you host yourself, and apply architecture and system-prompt best practices.

modules/connect/pages/create-agent.adoc

@@ -27,7 +27,7 @@ After reading this page, you will be able to:
 
 . Open *Agents* in the sidebar.
 . Click *Create agent*.
-. Choose how the agent runs. Click *Redpanda manages it*, so Redpanda deploys, runs, and observes the agent for you. (To register an agent you build and run yourself, see xref:connect:byoa-register.adoc[].)
+. Choose how the agent runs. Click *Redpanda manages it*, so Redpanda deploys, runs, and observes the agent for you. (To run an agent you host yourself, see xref:connect:self-managed-agents.adoc[].)
 +
 image::shared:create-agent-runtime-choice.png[The runtime choice in the create-agent flow, with a Redpanda manages it card for the managed runtime and an I host it myself card for self-managed agents]