0.10.1: Polish and Policy

Maintenance release with a Kyverno bump and developer-experience polish.

What's new

• Kyverno upgraded to 3.4.4 (#333) — was 3.2.5.
• Standardized error handling across packages (#326) — clearer, more consistent error messages.
• Code agent instructions for contributors (#322).

Bug fixes

• Dependency error fixed (#325).