This commit replaces the `chart` field with `chartRef` in CozystackResourceDefinition
to support direct OCIRepository references instead of HelmRepository lookups.
Changes:
- Update API types to use ChartRef structure with Kind, Name, Namespace fields
- Modify HelmRelease reconciler to set spec.chartRef instead of spec.chart
- Update config and registry to use new ChartRef configuration
- Add backward compatibility in lineage mapper for both chartRef and legacy chart
- Update all CozystackResourceDefinition YAML files to use new format
- Regenerate CRDs and deepcopy functions
Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>