Merchant Listing: Brand Shorthand

This scenario tests a merchant listing with brand as a string shorthand instead of a Brand object. Schema.org allows brand to be either a Brand object or a text string.

Expected outcome:

• One valid Merchant listing item detected
• Zero errors, zero warnings
• Includes required fields: name, image, description, offers (non-aggregate)
• Includes recommended global identifier: brand (string shorthand converted to object)