rename AI env vars for v5.x (AI_API_KEY -> OPENAI_SDK_API_KEY, AI_BASE_URL -> OPENAI_SDK_BASE_URL)

compose.yml

@@ -49,10 +49,10 @@ x-common-env: &common-env
   LOGOUT_REDIRECT_URL:
   OIDC_REDIRECT_ALLOWED_HOSTS:
   OIDC_AUTH_REQUEST_EXTRA_PARAMS:
-  # AI (Fixme: remove?)
+  # AI
   AI_FEATURE_ENABLED: "false"
-  AI_BASE_URL: https://openaiendpoint.com
-  AI_API_KEY: password
+  OPENAI_SDK_BASE_URL: https://openaiendpoint.com
+  OPENAI_SDK_API_KEY: password
   AI_MODEL: llama
   # Collaboration
   COLLABORATION_API_URL: https://$DOMAIN/collaboration/api/