{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Subscription request",
  "type": "object",
  "required": ["email", "plan"],
  "properties": {
    "email": {
      "type": "string",
      "format": "email",
      "description": "Account owner email"
    },
    "plan": {
      "type": "string",
      "enum": ["free", "pro"],
      "default": "free"
    },
    "members": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["name"],
        "properties": {
          "name": {"type": "string"},
          "role": {"type": "string", "enum": ["admin", "editor", "viewer"]}
        }
      }
    }
  }
}