docs: Semantic Catalog deprecation notice

Author: igorlukanin

docs/pages/product/workspace.mdx

@@ -45,7 +45,6 @@ encryption in Cube Store][ref-cube-store-encryption].
 - Use [Budgets][ref-budgets] to control the usage and spend of your Cube
   Cloud account.
 - Use [Preferences][ref-prefs] to adjust the workspace to your liking.
-- Use [Semantic Catalog][ref-semantic-catalog] to search a unified view of connected data assets, see lineage, and explore connected BI content.
 
 ## Workspace tools in Cube Core
 

docs/pages/product/workspace/semantic-catalog.mdx

@@ -11,6 +11,14 @@ You can also choose a [Semantic Catalog tier](/product/deployment/cloud/pricing#
 
 </SuccessBox>
 
+<WarningBox>
+
+Semantic Catalog is deprecated and will be replaced with metadata platform integrations.
+Also, consider using the [D3 agentic analytics platform](https://cube.dev/product/cube-d3)
+for semantic model discovery and exploration.
+
+</WarningBox>
+
 <Screenshot src="https://ucarecdn.com/d8e09149-7ed2-4f5c-83f6-406734557efb/catalog.jpg" />
 
 ## Configuration