GPT Image 2 Event Ticket/Staff Pass: Locked Event Name and Date, Reserved Blank Zone for Serial Numbers

Two key priorities for generating event tickets and staff passes: locking the event name and date in quotation marks (with character-count declarations and safeguards for characters like '證/号'), and clearly reserving a pure white blank zone for a serial number or QR code to be added later. It specifically adds a 'no fake barcodes or serial numbers' rule — the model loves to invent a fake barcode on its own initiative, and you don't want to find out it can't be scanned only after printing.