Updated README to reflect the full workflow:
1. Robot account creation via Job
2. Secret regeneration and capture
3. Storage in 1Password (harbor-robot-accounts item)
4. Automatic sync via ExternalSecrets to K8s
Documents robot account management via GitOps:
- tekton-builder and fastpass-cluster robot accounts
- Manual Job execution (PostSync hooks don't work with multi-source)
- Credential retrieval and storage in 1Password
- ImagePullSecret creation for K8s clusters