chore(oas): [11/n] improve oas schemas (#9188)

Improve OAS schemas [11/n]

www/utils/generated/oas-output/schemas/AdminRegion.ts

@@ -20,15 +20,16 @@
  *     type: string
  *     title: currency_code
  *     description: The region's currency code.
+ *     example: usd
  *   automatic_taxes:
  *     type: boolean
  *     title: automatic_taxes
- *     description: The region's automatic taxes.
+ *     description: Whether taxes are applied automatically during checkout.
  *   countries:
  *     type: array
  *     description: The region's countries.
  *     items:
- *       $ref: "#/components/schemas/BaseRegionCountry"
+ *       $ref: "#/components/schemas/AdminRegionCountry"
  *   payment_providers:
  *     type: array
  *     description: The region's payment providers.
@@ -36,17 +37,17 @@
  *       $ref: "#/components/schemas/AdminPaymentProvider"
  *   metadata:
  *     type: object
- *     description: The region's metadata.
+ *     description: The region's metadata, can hold custom key-value pairs.
  *   created_at:
  *     type: string
  *     format: date-time
  *     title: created_at
- *     description: The region's created at.
+ *     description: The date the region was created.
  *   updated_at:
  *     type: string
  *     format: date-time
  *     title: updated_at
- *     description: The region's updated at.
+ *     description: The date the region was updated.
  * 
 */