Added helper functions to support simplified policy architecture:
- extractRenderedSpec() - extract spec from policy results
- extractRenderedMetadata() - extract labels/annotations/context
- applyMetadataToApp() - apply metadata to Application CR
- applySpecToApp() - apply spec to Application
- renderAllPolicies() - render both global and explicit policies together
These will be used in the refactored ApplyApplicationScopeTransforms.
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Co-Authored-By: Claude <noreply@anthropic.com>