Warning: This build has drifted.
The coverage report for this pull request build may be inaccurate because its base commit is no longer the HEAD of its target branch.
This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

    • Learn more: For more information on this, see Tracking coverage changes for pull request builds.
    • Fix now: For a quick fix, rebase this PR at GitHub. Your next report should be accurate.
    • Prevent going forward: To avoid this issue with future PRs, see these Recommended CI Configurations.

helm/v2-alpha: preserve unhandled resources under templates/extras

The helm/v2-alpha plugin previously dropped Kubernetes resources that were
present in install.yaml but not explicitly handled by the default Helm
scaffolds.

This change ensures that:
- All resources produced by kustomize are tracked during parsing
- Known resources are scaffolded as before
- Any unhandled resources are preserved under templates/extras
- A warning is emitted to inform users when extras are generated
- Unit tests validate that multiple unhandled resources are not dropped

This prevents silent data loss in generated Helm charts.