- Client.Do retries 429/403/5xx honoring Retry-After - 401 returns ErrUnauthorized immediately (no retry) - Context cancellation honored during retry sleeps - Default UA keyhunter-recon/1.0, 30s timeout, 2 retries
- Client.Do retries 429/403/5xx honoring Retry-After - 401 returns ErrUnauthorized immediately (no retry) - Context cancellation honored during retry sleeps - Default UA keyhunter-recon/1.0, 30s timeout, 2 retries