Function handleGcpCredentialError

src/services/api/withRetry.ts:688–694

* Clear GCP auth caches if appropriate. * @returns true if action was taken.

(error: unknown)

 * @returns true if action was taken.
 */
function handleGcpCredentialError(error: unknown): boolean {
  if (isVertexAuthError(error)) {
    clearGcpCredentialsCache()
    return true
  }
  return false
}

function shouldRetry(error: APIError): boolean {
  // Never retry mock errors - they're from /mock-limits command for testing