Tagging AOAI content for 90d freshness

Author: nitinme

docfx.json

@@ -384,6 +384,8 @@
       "ms.collection": {
         "articles/ai-services/**/*.md": "ce-skilling-ai-copilot",
         "articles/ai-services/**/*.yml": "ce-skilling-ai-copilot",
+        "articles/openai/**/*.md": "ce-skilling-ai-copilot, ce-skilling-fresh-tier0",
+        "articles/openai/**/*.yml": "ce-skilling-ai-copilot, ce-skilling-fresh-tier0",
         "articles/ai-services/anomaly-detector/**/*.md": "ce-skilling-fresh-tier2, ce-skilling-ai-copilot",
         "articles/ai-services/anomaly-detector/**/*.yml": "ce-skilling-fresh-tier2, ce-skilling-ai-copilot",
         "articles/ai-services/content-moderator/**/*.md": "ce-skilling-fresh-tier2, ce-skilling-ai-copilot",