Update migration design metadata and AI usage

Author: staleycyn

learn-pr/wwl-azure/design-migrations/index.yml

@@ -3,15 +3,15 @@ uid: learn.wwl.design-migrations
 metadata:
   title: Design Migrations
   description: "Azure Architect's design and recommend migration solutions."
-  ms.date: 01/26/2026
+  ms.date: 03/23/2026
   author: wwlpublish
   ms.author: cynthist
   ms.topic: module
   ms.collection: N/A
   ms.custom:
   - N/A
   ms.service: azure
-  ai-usage: human-only
+  ai-usage: ai-assisted
 title: Design migrations
 summary: Azure Architect's design and recommend migration solutions.
 abstract: |