Direct users to new API reference site (backport #5911) (#6150)

* Direct users to new API reference site (#5911)

(cherry picked from commit 2d2a22b)

# Conflicts:
#	docs/advanced-entity-analytics/api/asset-criticality-api-overview.asciidoc

* resolves conflict

---------

Co-authored-by: natasha-moore-elastic <[email protected]>
Co-authored-by: natasha-moore-elastic <[email protected]>

Author: mergify[bot]

docs/AI-for-security/api/anonymization-fields-api-find.asciidoc

@@ -1,6 +1,12 @@
 [[anonymization-fields-api-find]]
 === Find anonymization fields
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 Retrieve a list of anonymization fields that can be included in the LLM context.
 
 [discrete]

docs/AI-for-security/api/assistant-api-overview.asciidoc

@@ -2,4 +2,10 @@
 [role="xpack"]
 == Elastic AI Assistant API
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 The Elastic AI Assistant API allows you to interact with and manage Elastic AI Assistant.

docs/AI-for-security/api/bulk-actions-anonymization-fields-api.asciidoc

@@ -1,6 +1,12 @@
 [[bulk-actions-anonymization-fields-api]]
 === Bulk anonymization field actions
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 Apply a bulk action (create, update, or delete) to multiple anonymization fields. The bulk action is applied to all anonymization fields that match the filter or to the list of anonymization fields by their IDs.
 
 [discrete]

docs/AI-for-security/api/bulk-actions-prompts-api.asciidoc

@@ -1,6 +1,12 @@
 [[bulk-actions-prompts-api]]
 === Bulk prompt actions
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 Apply a bulk action (create, update, or delete) to multiple prompts. The bulk action is applied to all prompts that match the filter or to the list of prompts by their IDs.
 
 [discrete]

docs/AI-for-security/api/chat-complete-api.asciidoc

@@ -1,6 +1,12 @@
 [[chat-complete-api]]
 === Complete chat
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 The complete chat API allows you to communicate with the configured large language model (LLM) and, if needed, persist the result as a conversation (create new or extend existing).
 
 [discrete]

docs/AI-for-security/api/conversation-api-create.asciidoc

@@ -1,6 +1,12 @@
 [[conversation-api-create]]
 === Create conversation
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 Create a new Elastic AI Assistant conversation.
 
 [discrete]

docs/AI-for-security/api/conversation-api-delete.asciidoc

@@ -1,6 +1,12 @@
 [[conversation-api-delete]]
 === Delete conversation
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 Delete an existing Elastic AI Assistant conversation by conversation ID.
 
 [discrete]

docs/AI-for-security/api/conversation-api-find.asciidoc

@@ -1,6 +1,12 @@
 [[conversation-api-find]]
 === Find conversations
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 Retrieve a list of Elastic AI Assistant conversations for the current user.
 
 [discrete]

docs/AI-for-security/api/conversation-api-get.asciidoc

@@ -1,6 +1,12 @@
 [[conversation-api-get]]
 === Get conversation
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 Retrieve an existing Elastic AI Assistant conversation by conversation ID.
 
 [discrete]

docs/AI-for-security/api/conversation-api-update.asciidoc

@@ -1,6 +1,12 @@
 [[conversation-api-update]]
 === Update conversation
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-kibana}/group/endpoint-security-ai-assistant-api[AI Assistant APIs].
+--
+
 Update an existing Elastic AI Assistant conversation by conversation ID.
 
 ==== Request URL