Error Handling

{
  "error": {
    "code": "ERROR_CODE",
    "message": "Human-readable error message",
    "details": {
      "field": "email",
      "reason": "Email already exists"
    }
  }
}

{
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Validation failed",
    "details": {
      "fields": {
        "email": "Invalid email format",
        "age": "Must be greater than 0"
      }
    }
  }
}

{
  "error": {
    "code": "FORBIDDEN",
    "message": "You do not have permission to access this resource",
    "details": {
      "required_permission": "users:delete",
      "user_roles": ["user"]
    }
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "Object 'xyz' not found"
  }
}