Design: backup resource status (rollup) for PartiallyFailed backups

[Joeavaikath]

Why the changes were made

High-level design for oadp-cli work under #269 (OADP-8697): after a backup finishes PartiallyFailed, expose per-logical-unit status (e.g. per-VM) by rolling up existing Velero metadata.

Adds docs/design/backup_resource_status-design.md covering:

• What rollup means (group per-item outcomes under owner/label)
• What we already have (ProcessDownloadRequest, non-admin describe fetching resource-list / results / volumeinfo / itemoperations, plus Backup CR + tarball ownerRefs)
• High-level library + CLI phasing (resource-status / vm-status)
• Link to upstream velero-io/velero#10503 and oadp-operator design PR #2442

Design only — no implementation.

How to test the changes made

• Read docs/design/backup_resource_status-design.md for accuracy and scope
• Confirm it matches intent of OADP-8697: Per-VM backup status for PartiallyFailed namespace backups #269 / Implement backup resource rollup library (Velero metadata + ownerReference graph) #270 / Add kubectl oadp backup resource-status and vm-status commands #271
• Feedback on admin vs non-admin command placement and merge conflict rules welcome

Made with Cursor

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