Function isNotFoundError

src/lib/fetch.ts:243–252

* Check if error is a 404 "not found" error

(error: unknown)

 * Check if error is a 404 "not found" error
 */
function isNotFoundError(error: unknown): boolean {
  if (error instanceof GitHubClientError && error.statusCode === 404) {
    return true;
  }
  // Also handle plain objects with statusCode property (for test mocks)
  if (hasStatusCode(error) && error.statusCode === 404) {
    return true;
  }
  return false;
}

/**
 * Parameters for fetch operation