Remove all continue-on-error usages from CI workflows: - deploy.yml: replace continue-on-error on SSH deploy steps with if: secrets.SSH_PRIVATE_KEY != '' so steps are skipped (not failed) when the secret is absent - windows-nightly.yml: remove continue-on-error from job and steps (job is already disabled via if: false) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>