{
  "type": "image",
  "key": "auth_aside_image_url",
  "constant": "AUTH_ASIDE_IMAGE_URL",
  "description": "Optional hero image for the auth marketing panel (shown behind brand/QR). Leave empty for gradient atmosphere only.",
  "required": false,
  "placeholder": "https://example.com/auth-hero.jpg",
  "validation": "nullable|string|max:2048",
  "options": [],
  "category": "auth_page",
  "sensitive": false
}