curl --location '/invoice-pdfs/01HQZR2BKPFQ8MXJVT3G7LWNE' \
--header 'Authorization: Bearer <token>'{
"message": "Invoice PDF generated successfully",
"status": "success",
"data": {
"filename": "invoice-INV-01HQZR2BKPFQ8MXJVT3G7LWND.pdf",
"content_type": "application/pdf",
"base64": "JVBERi0xLjQKJcOkw7zDtsO..."
}
}