Preserve source labels/annotations on v1alpha2 CRDs during migration

[efiacor]

Title

Preserve source labels/annotations on v1alpha2 CRDs during migration

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Description

• What changed: The repo controller's applySeedFields now carries over labels and annotations from the source PackageRevision's Kubernetes metadata when creating v1alpha2 CRDs. System-managed labels (porch.kpt.dev/repository, porch.kpt.dev/latest-revision, kpt.dev/latest-revision) are excluded.
• Why it's needed: When users set metadata.labels or metadata.annotations on v1alpha1 PackageRevisions (for RBAC, automation, or organizational purposes), that metadata was silently lost when the repo was migrated to v1alpha2 CRDs. Fixes Migration must preserve user labels and annotations from v1alpha1 PackageRevisions #1071.
• How it works: The seed SSA apply (which already runs on initial CRD creation for lifecycle, readinessGates, etc.) now includes source labels/annotations in its ObjectMeta. Uses the seed field manager without ForceOwnership so users and controllers can freely overwrite after migration.

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Related Issue(s)

• Fixes Migration must preserve user labels and annotations from v1alpha1 PackageRevisions #1071

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Type of Change

• Bug fix
• New feature
• Enhancement
• Refactor
• Documentation
• Tests
• Other: ________

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Checklist

• Code follows project style guidelines
• Self-reviewed changes
• Tests added/updated
• Documentation added/updated
• All tests and gating checks pass

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Testing Instructions (Optional)

1. make reload-controllers
2. E2E=1 go test ./test/e2e/crd/ -v --ginkgo.focus="Migration Metadata Preservation" -timeout 5m
3. Unit tests: go test ./controllers/repositories/pkg/controllers/repository/ -run "TestSourceMetadata|TestApplySeedFieldsWithSourceMetadata" -v

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Additional Notes (Optional)

• Known issues: None
• Further improvements: Could also filter annotations with known system prefixes (e.g. kubectl.kubernetes.io/) but keeping it minimal for now
• Review notes: The seed apply is a single SSA Patch (no additional API call added). The sourceMetadata function is a pure helper with full unit coverage.

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AI Disclosure

• I have used AI in the creation of this PR.

If so, please describe how:

• Kiro to implement the fix, write unit tests, and write the e2e test.
• The author has fully verified all code.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

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